Merge branch 'akpm' (patches from Andrew Morton)

Merge second patch-bomb from Andrew Morton:
 - a few hotfixes
 - drivers/dma updates
 - MAINTAINERS updates
 - Quite a lot of lib/ updates
 - checkpatch updates
 - binfmt updates
 - autofs4
 - drivers/rtc/
 - various small tweaks to less used filesystems
 - ipc/ updates
 - kernel/watchdog.c changes

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (135 commits)
  mm: softdirty: enable write notifications on VMAs after VM_SOFTDIRTY cleared
  kernel/param: consolidate __{start,stop}___param[] in <linux/moduleparam.h>
  ia64: remove duplicate declarations of __per_cpu_start[] and __per_cpu_end[]
  frv: remove unused declarations of __start___ex_table and __stop___ex_table
  kvm: ensure hard lockup detection is disabled by default
  kernel/watchdog.c: control hard lockup detection default
  staging: rtl8192u: use %*pEn to escape buffer
  staging: rtl8192e: use %*pEn to escape buffer
  staging: wlan-ng: use %*pEhp to print SN
  lib80211: remove unused print_ssid()
  wireless: hostap: proc: print properly escaped SSID
  wireless: ipw2x00: print SSID via %*pE
  wireless: libertas: print esaped string via %*pE
  lib/vsprintf: add %*pE[achnops] format specifier
  lib / string_helpers: introduce string_escape_mem()
  lib / string_helpers: refactoring the test suite
  lib / string_helpers: move documentation to c-file
  include/linux: remove strict_strto* definitions
  arch/x86/mm/numa.c: fix boot failure when all nodes are hotpluggable
  fs: check bh blocknr earlier when searching lru
  ...

Documentation/binfmt_misc.txt

@@ -15,39 +15,50 @@ First you must mount binfmt_misc:
 	mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc 
 
 To actually register a new binary type, you have to set up a string looking like
-:name:type:offset:magic:mask:interpreter:flags (where you can choose the ':' upon
-your needs) and echo it to /proc/sys/fs/binfmt_misc/register.
+:name:type:offset:magic:mask:interpreter:flags (where you can choose the ':'
+upon your needs) and echo it to /proc/sys/fs/binfmt_misc/register.
+
 Here is what the fields mean:
  - 'name' is an identifier string. A new /proc file will be created with this
-   name below /proc/sys/fs/binfmt_misc
+   name below /proc/sys/fs/binfmt_misc; cannot contain slashes '/' for obvious
+   reasons.
  - 'type' is the type of recognition. Give 'M' for magic and 'E' for extension.
  - 'offset' is the offset of the magic/mask in the file, counted in bytes. This
-   defaults to 0 if you omit it (i.e. you write ':name:type::magic...')
+   defaults to 0 if you omit it (i.e. you write ':name:type::magic...'). Ignored
+   when using filename extension matching.
  - 'magic' is the byte sequence binfmt_misc is matching for. The magic string
-   may contain hex-encoded characters like \x0a or \xA4. In a shell environment
-   you will have to write \\x0a to prevent the shell from eating your \.
+   may contain hex-encoded characters like \x0a or \xA4. Note that you must
+   escape any NUL bytes; parsing halts at the first one. In a shell environment
+   you might have to write \\x0a to prevent the shell from eating your \.
    If you chose filename extension matching, this is the extension to be
    recognised (without the '.', the \x0a specials are not allowed). Extension
-   matching is case sensitive!
+   matching is case sensitive, and slashes '/' are not allowed!
  - 'mask' is an (optional, defaults to all 0xff) mask. You can mask out some
    bits from matching by supplying a string like magic and as long as magic.
-   The mask is anded with the byte sequence of the file.
+   The mask is anded with the byte sequence of the file. Note that you must
+   escape any NUL bytes; parsing halts at the first one. Ignored when using
+   filename extension matching.
  - 'interpreter' is the program that should be invoked with the binary as first
    argument (specify the full path)
  - 'flags' is an optional field that controls several aspects of the invocation
-   of the interpreter. It is a string of capital letters, each controls a certain
-   aspect. The following flags are supported -
-      'P' - preserve-argv[0].  Legacy behavior of binfmt_misc is to overwrite the
-            original argv[0] with the full path to the binary.  When this flag is
-            included, binfmt_misc will add an argument to the argument vector for
-            this purpose, thus preserving the original argv[0].
+   of the interpreter. It is a string of capital letters, each controls a
+   certain aspect. The following flags are supported -
+      'P' - preserve-argv[0]. Legacy behavior of binfmt_misc is to overwrite
+            the original argv[0] with the full path to the binary. When this
+            flag is included, binfmt_misc will add an argument to the argument
+            vector for this purpose, thus preserving the original argv[0].
+            e.g. If your interp is set to /bin/foo and you run `blah` (which is
+            in /usr/local/bin), then the kernel will execute /bin/foo with
+            argv[] set to ["/bin/foo", "/usr/local/bin/blah", "blah"].  The
+            interp has to be aware of this so it can execute /usr/local/bin/blah
+            with argv[] set to ["blah"].
       'O' - open-binary. Legacy behavior of binfmt_misc is to pass the full path
             of the binary to the interpreter as an argument. When this flag is
             included, binfmt_misc will open the file for reading and pass its
             descriptor as an argument, instead of the full path, thus allowing
-            the interpreter to execute non-readable binaries. This feature should
-            be used with care - the interpreter has to be trusted not to emit
-            the contents of the non-readable binary.
+            the interpreter to execute non-readable binaries. This feature
+            should be used with care - the interpreter has to be trusted not to
+            emit the contents of the non-readable binary.
       'C' - credentials. Currently, the behavior of binfmt_misc is to calculate
             the credentials and security token of the new process according to
             the interpreter. When this flag is included, these attributes are
@@ -58,7 +69,7 @@ Here is what the fields mean:
 
 
 There are some restrictions:
- - the whole register string may not exceed 255 characters
+ - the whole register string may not exceed 1920 characters
  - the magic must reside in the first 128 bytes of the file, i.e.
    offset+size(magic) has to be less than 128
  - the interpreter string may not exceed 127 characters
@@ -110,7 +121,4 @@ passes it the full filename (or the file descriptor) to use.  Using $PATH can
 cause unexpected behaviour and can be a security hazard.
 
 
-There is a web page about binfmt_misc at
-http://www.tat.physik.uni-tuebingen.de
-
 Richard Günther <rguenth@tat.physik.uni-tuebingen.de>

Documentation/devicetree/bindings/i2c/ti,bq32k.txt

+* TI BQ32000                I2C Serial Real-Time Clock
+
+Required properties:
+- compatible: Should contain "ti,bq32000".
+- reg: I2C address for chip
+
+Optional properties:
+- trickle-resistor-ohms : Selected resistor for trickle charger
+       Values usable are 1120 and 20180
+       Should be given if trickle charger should be enabled
+- trickle-diode-disable : Do not use internal trickle charger diode
+       Should be given if internal trickle charger diode should be disabled
+Example:
+       bq32000: rtc@68 {
+               compatible = "ti,bq32000";
+               trickle-resistor-ohms = <1120>;
+               reg = <0x68>;
+       };

Documentation/devicetree/bindings/i2c/trivial-devices.txt

@@ -35,7 +35,6 @@ catalyst,24c32		i2c serial eeprom
 cirrus,cs42l51		Cirrus Logic CS42L51 audio codec
 dallas,ds1307		64 x 8, Serial, I2C Real-Time Clock
 dallas,ds1338		I2C RTC with 56-Byte NV RAM
-dallas,ds1339		I2C Serial Real-Time Clock
 dallas,ds1340		I2C RTC with Trickle Charger
 dallas,ds1374		I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
 dallas,ds1631		High-Precision Digital Thermometer

Documentation/devicetree/bindings/rtc/dallas,ds1339.txt

+* Dallas DS1339		I2C Serial Real-Time Clock
+
+Required properties:
+- compatible: Should contain "dallas,ds1339".
+- reg: I2C address for chip
+
+Optional properties:
+- trickle-resistor-ohms : Selected resistor for trickle charger
+	Values usable for ds1339 are 250, 2000, 4000
+	Should be given if trickle charger should be enabled
+- trickle-diode-disable : Do not use internal trickle charger diode
+	Should be given if internal trickle charger diode should be disabled
+Example:
+	ds1339: rtc@68 {
+		compatible = "dallas,ds1339";
+		trickle-resistor-ohms = <250>;
+		reg = <0x68>;
+	};

Documentation/devicetree/bindings/rtc/s3c-rtc.txt

@@ -3,7 +3,10 @@
 Required properties:
 - compatible: should be one of the following.
     * "samsung,s3c2410-rtc" - for controllers compatible with s3c2410 rtc.
+    * "samsung,s3c2416-rtc" - for controllers compatible with s3c2416 rtc.
+    * "samsung,s3c2443-rtc" - for controllers compatible with s3c2443 rtc.
     * "samsung,s3c6410-rtc" - for controllers compatible with s3c6410 rtc.
+    * "samsung,exynos3250-rtc" - for controllers compatible with exynos3250 rtc.
 - reg: physical base address of the controller and length of memory mapped
   region.
 - interrupts: Two interrupt numbers to the cpu should be specified. First

Documentation/printk-formats.txt

@@ -70,6 +70,38 @@ DMA addresses types dma_addr_t:
 	For printing a dma_addr_t type which can vary based on build options,
 	regardless of the width of the CPU data path. Passed by reference.
 
+Raw buffer as an escaped string:
+
+	%*pE[achnops]
+
+	For printing raw buffer as an escaped string. For the following buffer
+
+		1b 62 20 5c 43 07 22 90 0d 5d
+
+	few examples show how the conversion would be done (the result string
+	without surrounding quotes):
+
+		%*pE		"\eb \C\a"\220\r]"
+		%*pEhp		"\x1bb \C\x07"\x90\x0d]"
+		%*pEa		"\e\142\040\\\103\a\042\220\r\135"
+
+	The conversion rules are applied according to an optional combination
+	of flags (see string_escape_mem() kernel documentation for the
+	details):
+		a - ESCAPE_ANY
+		c - ESCAPE_SPECIAL
+		h - ESCAPE_HEX
+		n - ESCAPE_NULL
+		o - ESCAPE_OCTAL
+		p - ESCAPE_NP
+		s - ESCAPE_SPACE
+	By default ESCAPE_ANY_NP is used.
+
+	ESCAPE_ANY_NP is the sane choice for many cases, in particularly for
+	printing SSIDs.
+
+	If field width is omitted the 1 byte only will be escaped.
+
 Raw buffer as a hex string:
 	%*ph	00 01 02  ...  3f
 	%*phC	00:01:02: ... :3f

Documentation/sysctl/kernel.txt

@@ -190,6 +190,8 @@ core_pattern is used to specify a core dumpfile pattern name.
 	%%	output one '%'
 	%p	pid
 	%P	global pid (init PID namespace)
+	%i	tid
+	%I	global tid (init PID namespace)
 	%u	uid
 	%g	gid
 	%d	dump mode, matches PR_SET_DUMPABLE and

MAINTAINERS

@@ -1338,8 +1338,7 @@ ARM/SAMSUNG MOBILE MACHINE SUPPORT
 M:	Kyungmin Park <kyungmin.park@samsung.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
-F:	arch/arm/mach-s5pv210/mach-aquila.c
-F:	arch/arm/mach-s5pv210/mach-goni.c
+F:	arch/arm/mach-s5pv210/
 
 ARM/SAMSUNG S5P SERIES 2D GRAPHICS ACCELERATION (G2D) SUPPORT
 M:	Kyungmin Park <kyungmin.park@samsung.com>
@@ -1550,6 +1549,7 @@ T:	git git://git.xilinx.com/linux-xlnx.git
 S:	Supported
 F:	arch/arm/mach-zynq/
 F:	drivers/cpuidle/cpuidle-zynq.c
+F:	drivers/block/xsysace.c
 N:	zynq
 N:	xilinx
 F:	drivers/clocksource/cadence_ttc_timer.c
@@ -1738,6 +1738,12 @@ M:	Nicolas Ferre <nicolas.ferre@atmel.com>
 S:	Supported
 F:	drivers/net/ethernet/cadence/
 
+ATMEL NAND DRIVER
+M:	Josh Wu <josh.wu@atmel.com>
+L:	linux-mtd@lists.infradead.org
+S:	Supported
+F:	drivers/mtd/nand/atmel_nand*
+
 ATMEL SPI DRIVER
 M:	Nicolas Ferre <nicolas.ferre@atmel.com>
 S:	Supported
@@ -3048,7 +3054,7 @@ M:	Sumit Semwal <sumit.semwal@linaro.org>
 S:	Maintained
 L:	linux-media@vger.kernel.org
 L:	dri-devel@lists.freedesktop.org
-L:	linaro-mm-sig@lists.linaro.org
+L:	linaro-mm-sig@lists.linaro.org (moderated for non-subscribers)
 F:	drivers/dma-buf/
 F:	include/linux/dma-buf*
 F:	include/linux/reservation.h
@@ -4297,9 +4303,8 @@ S:	Maintained
 F:	drivers/media/dvb-frontends/hd29l2*
 
 HEWLETT-PACKARD SMART2 RAID DRIVER
-M:	Chirag Kantharia <chirag.kantharia@hp.com>
 L:	iss_storagedev@hp.com
-S:	Maintained
+S:	Orphan
 F:	Documentation/blockdev/cpqarray.txt
 F:	drivers/block/cpqarray.*
 
@@ -5300,6 +5305,13 @@ F:	include/linux/lockd/
 F:	include/linux/sunrpc/
 F:	include/uapi/linux/sunrpc/
 
+KERNEL SELFTEST FRAMEWORK
+M:	Shuah Khan <shuahkh@osg.samsung.com>
+L:	linux-api@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/shuah/linux-kselftest
+S:	Maintained
+F:	tools/testing/selftests
+
 KERNEL VIRTUAL MACHINE (KVM)
 M:	Gleb Natapov <gleb@kernel.org>
 M:	Paolo Bonzini <pbonzini@redhat.com>
@@ -5746,11 +5758,8 @@ T:	git git://github.com/linux-test-project/ltp.git
 S:	Maintained
 
 M32R ARCHITECTURE
-M:	Hirokazu Takata <takata@linux-m32r.org>
-L:	linux-m32r@ml.linux-m32r.org (moderated for non-subscribers)
-L:	linux-m32r-ja@ml.linux-m32r.org (in Japanese)
 W:	http://www.linux-m32r.org/
-S:	Maintained
+S:	Orphan
 F:	arch/m32r/
 
 M68K ARCHITECTURE
@@ -7974,7 +7983,6 @@ S:	Supported
 F:	drivers/mfd/sec*.c
 F:	drivers/regulator/s2m*.c
 F:	drivers/regulator/s5m*.c
-F:	drivers/rtc/rtc-sec.c
 F:	include/linux/mfd/samsung/
 
 SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
@@ -10315,10 +10323,6 @@ M:	John Linn <John.Linn@xilinx.com>
 S:	Maintained
 F:	drivers/net/ethernet/xilinx/xilinx_axienet*
 
-XILINX SYSTEMACE DRIVER
-S:	Orphan
-F:	drivers/block/xsysace.c
-
 XILINX UARTLITE SERIAL DRIVER
 M:	Peter Korsgaard <jacmet@sunsite.dk>
 L:	linux-serial@vger.kernel.org

arch/arm/boot/dts/exynos3250.dtsi

@@ -164,7 +164,7 @@
 		};
 
 		rtc: rtc@10070000 {
-			compatible = "samsung,s3c6410-rtc";
+			compatible = "samsung,exynos3250-rtc";
 			reg = <0x10070000 0x100>;
 			interrupts = <0 73 0>, <0 74 0>;
 			status = "disabled";

arch/arm/mach-pxa/lpd270.c

@@ -416,17 +416,17 @@ static struct pxafb_mach_info *lpd270_lcd_to_use;
 
 static int __init lpd270_set_lcd(char *str)
 {
-	if (!strnicmp(str, "lq057q3dc02", 11)) {
+	if (!strncasecmp(str, "lq057q3dc02", 11)) {
 		lpd270_lcd_to_use = &sharp_lq057q3dc02;
-	} else if (!strnicmp(str, "lq121s1dg31", 11)) {
+	} else if (!strncasecmp(str, "lq121s1dg31", 11)) {
 		lpd270_lcd_to_use = &sharp_lq121s1dg31;
-	} else if (!strnicmp(str, "lq036q1da01", 11)) {
+	} else if (!strncasecmp(str, "lq036q1da01", 11)) {
 		lpd270_lcd_to_use = &sharp_lq036q1da01;
-	} else if (!strnicmp(str, "lq64d343", 8)) {
+	} else if (!strncasecmp(str, "lq64d343", 8)) {
 		lpd270_lcd_to_use = &sharp_lq64d343;
-	} else if (!strnicmp(str, "lq10d368", 8)) {
+	} else if (!strncasecmp(str, "lq10d368", 8)) {
 		lpd270_lcd_to_use = &sharp_lq10d368;
-	} else if (!strnicmp(str, "lq035q7db02-20", 14)) {
+	} else if (!strncasecmp(str, "lq035q7db02-20", 14)) {
 		lpd270_lcd_to_use = &sharp_lq035q7db02_20;
 	} else {
 		printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);

arch/frv/mm/extable.c

@@ -6,8 +6,6 @@
 #include <linux/spinlock.h>
 #include <asm/uaccess.h>
 
-extern const struct exception_table_entry __attribute__((aligned(8))) __start___ex_table[];
-extern const struct exception_table_entry __attribute__((aligned(8))) __stop___ex_table[];
 extern const void __memset_end, __memset_user_error_lr, __memset_user_error_handler;
 extern const void __memcpy_end, __memcpy_user_error_lr, __memcpy_user_error_handler;
 extern spinlock_t modlist_lock;

arch/ia64/include/asm/sections.h

@@ -10,7 +10,7 @@
 #include <linux/uaccess.h>
 #include <asm-generic/sections.h>
 
-extern char __per_cpu_start[], __per_cpu_end[], __phys_per_cpu_start[];
+extern char __phys_per_cpu_start[];
 #ifdef	CONFIG_SMP
 extern char __cpu0_per_cpu[];
 #endif

arch/x86/kernel/cpu/common.c

@@ -964,6 +964,7 @@ static void vgetcpu_set_mode(void)
 		vgetcpu_mode = VGETCPU_LSL;
 }
 
+#ifdef CONFIG_IA32_EMULATION
 /* May not be __init: called during resume */
 static void syscall32_cpu_init(void)
 {
@@ -975,7 +976,8 @@ static void syscall32_cpu_init(void)
 
 	wrmsrl(MSR_CSTAR, ia32_cstar_target);
 }
-#endif
+#endif		/* CONFIG_IA32_EMULATION */
+#endif		/* CONFIG_X86_64 */
 
 #ifdef CONFIG_X86_32
 void enable_sep_cpu(void)

arch/x86/kernel/crash.c

@@ -237,7 +237,7 @@ static void fill_up_crash_elf_data(struct crash_elf_data *ced,
 	ced->max_nr_ranges++;
 
 	/* If crashk_low_res is not 0, another range split possible */
-	if (crashk_low_res.end != 0)
+	if (crashk_low_res.end)
 		ced->max_nr_ranges++;
 }
 
@@ -335,9 +335,11 @@ static int elf_header_exclude_ranges(struct crash_elf_data *ced,
 	if (ret)
 		return ret;
 
-	ret = exclude_mem_range(cmem, crashk_low_res.start, crashk_low_res.end);
-	if (ret)
-		return ret;
+	if (crashk_low_res.end) {
+		ret = exclude_mem_range(cmem, crashk_low_res.start, crashk_low_res.end);
+		if (ret)
+			return ret;
+	}
 
 	/* Exclude GART region */
 	if (ced->gart_end) {

arch/x86/kernel/kexec-bzimage64.c

@@ -26,6 +26,7 @@
 #include <asm/setup.h>
 #include <asm/crash.h>
 #include <asm/efi.h>
+#include <asm/kexec-bzimage64.h>
 
 #define MAX_ELFCOREHDR_STR_LEN	30	/* elfcorehdr=0x<64bit-value> */
 
@@ -267,7 +268,7 @@ setup_boot_parameters(struct kimage *image, struct boot_params *params,
 	return ret;
 }
 
-int bzImage64_probe(const char *buf, unsigned long len)
+static int bzImage64_probe(const char *buf, unsigned long len)
 {
 	int ret = -ENOEXEC;
 	struct setup_header *header;
@@ -325,10 +326,10 @@ int bzImage64_probe(const char *buf, unsigned long len)
 	return ret;
 }
 
-void *bzImage64_load(struct kimage *image, char *kernel,
-		     unsigned long kernel_len, char *initrd,
-		     unsigned long initrd_len, char *cmdline,
-		     unsigned long cmdline_len)
+static void *bzImage64_load(struct kimage *image, char *kernel,
+			    unsigned long kernel_len, char *initrd,
+			    unsigned long initrd_len, char *cmdline,
+			    unsigned long cmdline_len)
 {
 
 	struct setup_header *header;
@@ -514,7 +515,7 @@ void *bzImage64_load(struct kimage *image, char *kernel,
 }
 
 /* This cleanup function is called after various segments have been loaded */
-int bzImage64_cleanup(void *loader_data)
+static int bzImage64_cleanup(void *loader_data)
 {
 	struct bzimage64_data *ldata = loader_data;
 
@@ -528,7 +529,7 @@ int bzImage64_cleanup(void *loader_data)
 }
 
 #ifdef CONFIG_KEXEC_BZIMAGE_VERIFY_SIG
-int bzImage64_verify_sig(const char *kernel, unsigned long kernel_len)
+static int bzImage64_verify_sig(const char *kernel, unsigned long kernel_len)
 {
 	bool trusted;
 	int ret;

arch/x86/kernel/kvm.c

@@ -35,6 +35,7 @@
 #include <linux/slab.h>
 #include <linux/kprobes.h>
 #include <linux/debugfs.h>
+#include <linux/nmi.h>
 #include <asm/timer.h>
 #include <asm/cpu.h>
 #include <asm/traps.h>
@@ -499,6 +500,13 @@ void __init kvm_guest_init(void)
 #else
 	kvm_guest_cpu_init();
 #endif
+
+	/*
+	 * Hard lockup detection is enabled by default. Disable it, as guests
+	 * can get false positives too easily, for example if the host is
+	 * overcommitted.
+	 */
+	watchdog_enable_hardlockup_detector(false);
 }
 
 static noinline uint32_t __kvm_cpuid_base(void)

arch/x86/mm/ioremap.c

@@ -86,6 +86,7 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
 	pgprot_t prot;
 	int retval;
 	void __iomem *ret_addr;
+	int ram_region;
 
 	/* Don't allow wraparound or zero size */
 	last_addr = phys_addr + size - 1;
@@ -108,12 +109,23 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
 	/*
 	 * Don't allow anybody to remap normal RAM that we're using..
 	 */
-	pfn      = phys_addr >> PAGE_SHIFT;
-	last_pfn = last_addr >> PAGE_SHIFT;
-	if (walk_system_ram_range(pfn, last_pfn - pfn + 1, NULL,
-				  __ioremap_check_ram) == 1)
+	/* First check if whole region can be identified as RAM or not */
+	ram_region = region_is_ram(phys_addr, size);
+	if (ram_region > 0) {
+		WARN_ONCE(1, "ioremap on RAM at 0x%lx - 0x%lx\n",
+				(unsigned long int)phys_addr,
+				(unsigned long int)last_addr);
 		return NULL;
+	}
 
+	/* If could not be identified(-1), check page by page */
+	if (ram_region < 0) {
+		pfn      = phys_addr >> PAGE_SHIFT;
+		last_pfn = last_addr >> PAGE_SHIFT;
+		if (walk_system_ram_range(pfn, last_pfn - pfn + 1, NULL,
+					  __ioremap_check_ram) == 1)
+			return NULL;
+	}
 	/*
 	 * Mappings have to be page-aligned
 	 */

arch/x86/mm/numa.c

@@ -463,6 +463,42 @@ static bool __init numa_meminfo_cover_memory(const struct numa_meminfo *mi)
 	return true;
 }
 
+static void __init numa_clear_kernel_node_hotplug(void)
+{
+	int i, nid;
+	nodemask_t numa_kernel_nodes = NODE_MASK_NONE;
+	unsigned long start, end;
+	struct memblock_region *r;
+
+	/*
+	 * At this time, all memory regions reserved by memblock are
+	 * used by the kernel. Set the nid in memblock.reserved will
+	 * mark out all the nodes the kernel resides in.
+	 */
+	for (i = 0; i < numa_meminfo.nr_blks; i++) {
+		struct numa_memblk *mb = &numa_meminfo.blk[i];
+
+		memblock_set_node(mb->start, mb->end - mb->start,
+				  &memblock.reserved, mb->nid);
+	}
+
+	/* Mark all kernel nodes. */
+	for_each_memblock(reserved, r)
+		node_set(r->nid, numa_kernel_nodes);
+
+	/* Clear MEMBLOCK_HOTPLUG flag for memory in kernel nodes. */
+	for (i = 0; i < numa_meminfo.nr_blks; i++) {
+		nid = numa_meminfo.blk[i].nid;
+		if (!node_isset(nid, numa_kernel_nodes))
+			continue;
+
+		start = numa_meminfo.blk[i].start;
+		end = numa_meminfo.blk[i].end;
+
+		memblock_clear_hotplug(start, end - start);
+	}
+}
+
 static int __init numa_register_memblks(struct numa_meminfo *mi)
 {
 	unsigned long uninitialized_var(pfn_align);
@@ -480,6 +516,15 @@ static int __init numa_register_memblks(struct numa_meminfo *mi)
 				  &memblock.memory, mb->nid);
 	}
 
+	/*
+	 * At very early time, the kernel have to use some memory such as
+	 * loading the kernel image. We cannot prevent this anyway. So any
+	 * node the kernel resides in should be un-hotpluggable.
+	 *
+	 * And when we come here, alloc node data won't fail.
+	 */
+	numa_clear_kernel_node_hotplug();
+
 	/*
 	 * If sections array is gonna be used for pfn -> nid mapping, check
 	 * whether its granularity is fine enough.
@@ -548,41 +593,6 @@ static void __init numa_init_array(void)
 	}
 }
 
-static void __init numa_clear_kernel_node_hotplug(void)
-{
-	int i, nid;
-	nodemask_t numa_kernel_nodes = NODE_MASK_NONE;
-	unsigned long start, end;
-	struct memblock_region *r;
-
-	/*
-	 * At this time, all memory regions reserved by memblock are
-	 * used by the kernel. Set the nid in memblock.reserved will
-	 * mark out all the nodes the kernel resides in.
-	 */
-	for (i = 0; i < numa_meminfo.nr_blks; i++) {
-		struct numa_memblk *mb = &numa_meminfo.blk[i];
-		memblock_set_node(mb->start, mb->end - mb->start,
-				  &memblock.reserved, mb->nid);
-	}
-
-	/* Mark all kernel nodes. */
-	for_each_memblock(reserved, r)
-		node_set(r->nid, numa_kernel_nodes);
-
-	/* Clear MEMBLOCK_HOTPLUG flag for memory in kernel nodes. */
-	for (i = 0; i < numa_meminfo.nr_blks; i++) {
-		nid = numa_meminfo.blk[i].nid;
-		if (!node_isset(nid, numa_kernel_nodes))
-			continue;
-
-		start = numa_meminfo.blk[i].start;
-		end = numa_meminfo.blk[i].end;
-
-		memblock_clear_hotplug(start, end - start);
-	}
-}
-
 static int __init numa_init(int (*init_func)(void))
 {
 	int i;
@@ -637,15 +647,6 @@ static int __init numa_init(int (*init_func)(void))
 	}
 	numa_init_array();
 
-	/*
-	 * At very early time, the kernel have to use some memory such as
-	 * loading the kernel image. We cannot prevent this anyway. So any
-	 * node the kernel resides in should be un-hotpluggable.
-	 *
-	 * And when we come here, numa_init() won't fail.
-	 */
-	numa_clear_kernel_node_hotplug();
-
 	return 0;
 }
 

arch/x86/purgatory/Makefile

@@ -18,8 +18,9 @@ $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
 
 targets += kexec-purgatory.c
 
+CMD_BIN2C = $(objtree)/scripts/basic/bin2c
 quiet_cmd_bin2c = BIN2C   $@
-      cmd_bin2c = cat $(obj)/purgatory.ro | $(objtree)/scripts/basic/bin2c kexec_purgatory > $(obj)/kexec-purgatory.c
+      cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@
 
 $(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
 	$(call if_changed,bin2c)

drivers/base/dma-coherent.c

@@ -14,11 +14,14 @@ struct dma_coherent_mem {
 	int		size;
 	int		flags;
 	unsigned long	*bitmap;
+	spinlock_t	spinlock;
 };
 
-int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
-				dma_addr_t device_addr, size_t size, int flags)
+static int dma_init_coherent_memory(phys_addr_t phys_addr, dma_addr_t device_addr,
+			     size_t size, int flags,
+			     struct dma_coherent_mem **mem)
 {
+	struct dma_coherent_mem *dma_mem = NULL;
 	void __iomem *mem_base = NULL;
 	int pages = size >> PAGE_SHIFT;
 	int bitmap_size = BITS_TO_LONGS(pages) * sizeof(long);
@@ -27,40 +30,77 @@ int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
 		goto out;
 	if (!size)
 		goto out;
-	if (dev->dma_mem)
-		goto out;
-
-	/* FIXME: this routine just ignores DMA_MEMORY_INCLUDES_CHILDREN */
 
 	mem_base = ioremap(phys_addr, size);
 	if (!mem_base)
 		goto out;
 
-	dev->dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL);
-	if (!dev->dma_mem)
+	dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL);
+	if (!dma_mem)
 		goto out;
-	dev->dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL);
-	if (!dev->dma_mem->bitmap)
-		goto free1_out;
+	dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL);
+	if (!dma_mem->bitmap)
+		goto out;
+
+	dma_mem->virt_base = mem_base;
+	dma_mem->device_base = device_addr;
+	dma_mem->pfn_base = PFN_DOWN(phys_addr);
+	dma_mem->size = pages;
+	dma_mem->flags = flags;
+	spin_lock_init(&dma_mem->spinlock);
 
-	dev->dma_mem->virt_base = mem_base;
-	dev->dma_mem->device_base = device_addr;
-	dev->dma_mem->pfn_base = PFN_DOWN(phys_addr);
-	dev->dma_mem->size = pages;
-	dev->dma_mem->flags = flags;
+	*mem = dma_mem;
 
 	if (flags & DMA_MEMORY_MAP)
 		return DMA_MEMORY_MAP;
 
 	return DMA_MEMORY_IO;
 
- free1_out:
-	kfree(dev->dma_mem);
- out:
+out:
+	kfree(dma_mem);
 	if (mem_base)
 		iounmap(mem_base);
 	return 0;
 }
+
+static void dma_release_coherent_memory(struct dma_coherent_mem *mem)
+{
+	if (!mem)
+		return;
+	iounmap(mem->virt_base);
+	kfree(mem->bitmap);
+	kfree(mem);
+}
+
+static int dma_assign_coherent_memory(struct device *dev,
+				      struct dma_coherent_mem *mem)
+{
+	if (dev->dma_mem)
+		return -EBUSY;
+
+	dev->dma_mem = mem;
+	/* FIXME: this routine just ignores DMA_MEMORY_INCLUDES_CHILDREN */
+
+	return 0;
+}
+
+int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
+				dma_addr_t device_addr, size_t size, int flags)
+{
+	struct dma_coherent_mem *mem;
+	int ret;
+
+	ret = dma_init_coherent_memory(phys_addr, device_addr, size, flags,
+				       &mem);
+	if (ret == 0)
+		return 0;
+
+	if (dma_assign_coherent_memory(dev, mem) == 0)
+		return ret;
+
+	dma_release_coherent_memory(mem);
+	return 0;
+}
 EXPORT_SYMBOL(dma_declare_coherent_memory);
 
 void dma_release_declared_memory(struct device *dev)
@@ -69,10 +109,8 @@ void dma_release_declared_memory(struct device *dev)
 
 	if (!mem)
 		return;
+	dma_release_coherent_memory(mem);
 	dev->dma_mem = NULL;
-	iounmap(mem->virt_base);
-	kfree(mem->bitmap);
-	kfree(mem);
 }
 EXPORT_SYMBOL(dma_release_declared_memory);
 
@@ -80,6 +118,7 @@ void *dma_mark_declared_memory_occupied(struct device *dev,
 					dma_addr_t device_addr, size_t size)
 {
 	struct dma_coherent_mem *mem = dev->dma_mem;
+	unsigned long flags;
 	int pos, err;
 
 	size += device_addr & ~PAGE_MASK;
@@ -87,8 +126,11 @@ void *dma_mark_declared_memory_occupied(struct device *dev,
 	if (!mem)
 		return ERR_PTR(-EINVAL);
 
+	spin_lock_irqsave(&mem->spinlock, flags);
 	pos = (device_addr - mem->device_base) >> PAGE_SHIFT;
 	err = bitmap_allocate_region(mem->bitmap, pos, get_order(size));
+	spin_unlock_irqrestore(&mem->spinlock, flags);
+
 	if (err != 0)
 		return ERR_PTR(err);
 	return mem->virt_base + (pos << PAGE_SHIFT);
@@ -115,6 +157,7 @@ int dma_alloc_from_coherent(struct device *dev, ssize_t size,
 {
 	struct dma_coherent_mem *mem;
 	int order = get_order(size);
+	unsigned long flags;
 	int pageno;
 
 	if (!dev)
@@ -124,6 +167,7 @@ int dma_alloc_from_coherent(struct device *dev, ssize_t size,
 		return 0;
 
 	*ret = NULL;
+	spin_lock_irqsave(&mem->spinlock, flags);
 
 	if (unlikely(size > (mem->size << PAGE_SHIFT)))
 		goto err;
@@ -138,10 +182,12 @@ int dma_alloc_from_coherent(struct device *dev, ssize_t size,
 	*dma_handle = mem->device_base + (pageno << PAGE_SHIFT);
 	*ret = mem->virt_base + (pageno << PAGE_SHIFT);
 	memset(*ret, 0, size);
+	spin_unlock_irqrestore(&mem->spinlock, flags);
 
 	return 1;
 
 err:
+	spin_unlock_irqrestore(&mem->spinlock, flags);
 	/*
 	 * In the case where the allocation can not be satisfied from the
 	 * per-device area, try to fall back to generic memory if the
@@ -171,8 +217,11 @@ int dma_release_from_coherent(struct device *dev, int order, void *vaddr)
 	if (mem && vaddr >= mem->virt_base && vaddr <
 		   (mem->virt_base + (mem->size << PAGE_SHIFT))) {
 		int page = (vaddr - mem->virt_base) >> PAGE_SHIFT;
+		unsigned long flags;
 
+		spin_lock_irqsave(&mem->spinlock, flags);
 		bitmap_release_region(mem->bitmap, page, order);
+		spin_unlock_irqrestore(&mem->spinlock, flags);
 		return 1;
 	}
 	return 0;
@@ -218,3 +267,61 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
 	return 0;
 }
 EXPORT_SYMBOL(dma_mmap_from_coherent);
+
+/*
+ * Support for reserved memory regions defined in device tree
+ */
+#ifdef CONFIG_OF_RESERVED_MEM
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/of_reserved_mem.h>
+
+static int rmem_dma_device_init(struct reserved_mem *rmem, struct device *dev)
+{
+	struct dma_coherent_mem *mem = rmem->priv;
+
+	if (!mem &&
+	    dma_init_coherent_memory(rmem->base, rmem->base, rmem->size,
+				     DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE,
+				     &mem) != DMA_MEMORY_MAP) {
+		pr_err("Reserved memory: failed to init DMA memory pool at %pa, size %ld MiB\n",
+			&rmem->base, (unsigned long)rmem->size / SZ_1M);
+		return -ENODEV;
+	}
+	rmem->priv = mem;
+	dma_assign_coherent_memory(dev, mem);
+	return 0;
+}
+
+static void rmem_dma_device_release(struct reserved_mem *rmem,
+				    struct device *dev)
+{
+	dev->dma_mem = NULL;
+}
+
+static const struct reserved_mem_ops rmem_dma_ops = {
+	.device_init	= rmem_dma_device_init,
+	.device_release	= rmem_dma_device_release,
+};
+
+static int __init rmem_dma_setup(struct reserved_mem *rmem)
+{
+	unsigned long node = rmem->fdt_node;
+
+	if (of_get_flat_dt_prop(node, "reusable", NULL))
+		return -EINVAL;
+
+#ifdef CONFIG_ARM
+	if (!of_get_flat_dt_prop(node, "no-map", NULL)) {
+		pr_err("Reserved memory: regions without no-map are not yet supported\n");
+		return -EINVAL;
+	}
+#endif
+
+	rmem->ops = &rmem_dma_ops;
+	pr_info("Reserved memory: created DMA memory pool at %pa, size %ld MiB\n",
+		&rmem->base, (unsigned long)rmem->size / SZ_1M);
+	return 0;
+}
+RESERVEDMEM_OF_DECLARE(dma, "shared-dma-pool", rmem_dma_setup);
+#endif

drivers/base/dma-contiguous.c

@@ -211,3 +211,69 @@ bool dma_release_from_contiguous(struct device *dev, struct page *pages,
 {
 	return cma_release(dev_get_cma_area(dev), pages, count);
 }
+
+/*
+ * Support for reserved memory regions defined in device tree
+ */
+#ifdef CONFIG_OF_RESERVED_MEM
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/of_reserved_mem.h>
+
+#undef pr_fmt
+#define pr_fmt(fmt) fmt
+
+static void rmem_cma_device_init(struct reserved_mem *rmem, struct device *dev)
+{
+	dev_set_cma_area(dev, rmem->priv);
+}
+
+static void rmem_cma_device_release(struct reserved_mem *rmem,
+				    struct device *dev)
+{
+	dev_set_cma_area(dev, NULL);
+}
+
+static const struct reserved_mem_ops rmem_cma_ops = {
+	.device_init	= rmem_cma_device_init,
+	.device_release = rmem_cma_device_release,
+};
+
+static int __init rmem_cma_setup(struct reserved_mem *rmem)
+{
+	phys_addr_t align = PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order);
+	phys_addr_t mask = align - 1;
+	unsigned long node = rmem->fdt_node;
+	struct cma *cma;
+	int err;
+
+	if (!of_get_flat_dt_prop(node, "reusable", NULL) ||
+	    of_get_flat_dt_prop(node, "no-map", NULL))
+		return -EINVAL;
+
+	if ((rmem->base & mask) || (rmem->size & mask)) {
+		pr_err("Reserved memory: incorrect alignment of CMA region\n");
+		return -EINVAL;
+	}
+
+	err = cma_init_reserved_mem(rmem->base, rmem->size, 0, &cma);
+	if (err) {
+		pr_err("Reserved memory: unable to setup CMA region\n");
+		return err;
+	}
+	/* Architecture specific contiguous memory fixup. */
+	dma_contiguous_early_fixup(rmem->base, rmem->size);
+
+	if (of_get_flat_dt_prop(node, "linux,cma-default", NULL))
+		dma_contiguous_set_default(cma);
+
+	rmem->ops = &rmem_cma_ops;
+	rmem->priv = cma;
+
+	pr_info("Reserved memory: created CMA memory pool at %pa, size %ld MiB\n",
+		&rmem->base, (unsigned long)rmem->size / SZ_1M);
+
+	return 0;
+}
+RESERVEDMEM_OF_DECLARE(cma, "shared-dma-pool", rmem_cma_setup);
+#endif

drivers/clk/Kconfig

@@ -38,6 +38,15 @@ config COMMON_CLK_MAX77686
 	---help---
 	  This driver supports Maxim 77686 crystal oscillator clock. 
 
+config COMMON_CLK_RK808
+	tristate "Clock driver for RK808"
+	depends on MFD_RK808
+	---help---
+	  This driver supports RK808 crystal oscillator clock. These
+	  multi-function devices have two fixed-rate oscillators,
+	  clocked at 32KHz each. Clkout1 is always on, Clkout2 can off
+	  by control register.
+
 config COMMON_CLK_SI5351
 	tristate "Clock driver for SiLabs 5351A/B/C"
 	depends on I2C

drivers/clk/Makefile

@@ -28,6 +28,7 @@ obj-$(CONFIG_ARCH_NOMADIK)		+= clk-nomadik.o
 obj-$(CONFIG_ARCH_NSPIRE)		+= clk-nspire.o
 obj-$(CONFIG_COMMON_CLK_PALMAS)		+= clk-palmas.o
 obj-$(CONFIG_CLK_PPC_CORENET)		+= clk-ppc-corenet.o
+obj-$(CONFIG_COMMON_CLK_RK808)		+= clk-rk808.o
 obj-$(CONFIG_COMMON_CLK_S2MPS11)	+= clk-s2mps11.o
 obj-$(CONFIG_COMMON_CLK_SI5351)		+= clk-si5351.o
 obj-$(CONFIG_COMMON_CLK_SI570)		+= clk-si570.o

drivers/clk/clk-rk808.c

+/*
+ * Clkout driver for Rockchip RK808
+ *
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * Author:Chris Zhong <zyw@rock-chips.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/rk808.h>
+#include <linux/i2c.h>
+
+#define RK808_NR_OUTPUT 2
+
+struct rk808_clkout {
+	struct rk808 *rk808;
+	struct clk_onecell_data clk_data;
+	struct clk_hw		clkout1_hw;
+	struct clk_hw		clkout2_hw;
+};
+
+static unsigned long rk808_clkout_recalc_rate(struct clk_hw *hw,
+					      unsigned long parent_rate)
+{
+	return 32768;
+}
+
+static int rk808_clkout2_enable(struct clk_hw *hw, bool enable)
+{
+	struct rk808_clkout *rk808_clkout = container_of(hw,
+							 struct rk808_clkout,
+							 clkout2_hw);
+	struct rk808 *rk808 = rk808_clkout->rk808;
+
+	return regmap_update_bits(rk808->regmap, RK808_CLK32OUT_REG,
+				  CLK32KOUT2_EN, enable ? CLK32KOUT2_EN : 0);
+}
+
+static int rk808_clkout2_prepare(struct clk_hw *hw)
+{
+	return rk808_clkout2_enable(hw, true);
+}
+
+static void rk808_clkout2_unprepare(struct clk_hw *hw)
+{
+	rk808_clkout2_enable(hw, false);
+}
+
+static int rk808_clkout2_is_prepared(struct clk_hw *hw)
+{
+	struct rk808_clkout *rk808_clkout = container_of(hw,
+							 struct rk808_clkout,
+							 clkout2_hw);
+	struct rk808 *rk808 = rk808_clkout->rk808;
+	uint32_t val;
+
+	int ret = regmap_read(rk808->regmap, RK808_CLK32OUT_REG, &val);
+
+	if (ret < 0)
+		return ret;
+
+	return (val & CLK32KOUT2_EN) ? 1 : 0;
+}
+
+static const struct clk_ops rk808_clkout1_ops = {
+	.recalc_rate = rk808_clkout_recalc_rate,
+};
+
+static const struct clk_ops rk808_clkout2_ops = {
+	.prepare = rk808_clkout2_prepare,
+	.unprepare = rk808_clkout2_unprepare,
+	.is_prepared = rk808_clkout2_is_prepared,
+	.recalc_rate = rk808_clkout_recalc_rate,
+};
+
+static int rk808_clkout_probe(struct platform_device *pdev)
+{
+	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
+	struct i2c_client *client = rk808->i2c;
+	struct device_node *node = client->dev.of_node;
+	struct clk_init_data init = {};
+	struct clk **clk_table;
+	struct rk808_clkout *rk808_clkout;
+
+	rk808_clkout = devm_kzalloc(&client->dev,
+				    sizeof(*rk808_clkout), GFP_KERNEL);
+	if (!rk808_clkout)
+		return -ENOMEM;
+
+	rk808_clkout->rk808 = rk808;
+
+	clk_table = devm_kcalloc(&client->dev, RK808_NR_OUTPUT,
+				 sizeof(struct clk *), GFP_KERNEL);
+	if (!clk_table)
+		return -ENOMEM;
+
+	init.flags = CLK_IS_ROOT;
+	init.parent_names = NULL;
+	init.num_parents = 0;
+	init.name = "rk808-clkout1";
+	init.ops = &rk808_clkout1_ops;
+	rk808_clkout->clkout1_hw.init = &init;
+
+	/* optional override of the clockname */
+	of_property_read_string_index(node, "clock-output-names",
+				      0, &init.name);
+
+	clk_table[0] = devm_clk_register(&client->dev,
+					 &rk808_clkout->clkout1_hw);
+	if (IS_ERR(clk_table[0]))
+		return PTR_ERR(clk_table[0]);
+
+	init.name = "rk808-clkout2";
+	init.ops = &rk808_clkout2_ops;
+	rk808_clkout->clkout2_hw.init = &init;
+
+	/* optional override of the clockname */
+	of_property_read_string_index(node, "clock-output-names",
+				      1, &init.name);
+
+	clk_table[1] = devm_clk_register(&client->dev,
+					 &rk808_clkout->clkout2_hw);
+	if (IS_ERR(clk_table[1]))
+		return PTR_ERR(clk_table[1]);
+
+	rk808_clkout->clk_data.clks = clk_table;
+	rk808_clkout->clk_data.clk_num = RK808_NR_OUTPUT;
+
+	return of_clk_add_provider(node, of_clk_src_onecell_get,
+				   &rk808_clkout->clk_data);
+}
+
+static int rk808_clkout_remove(struct platform_device *pdev)
+{
+	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
+	struct i2c_client *client = rk808->i2c;
+	struct device_node *node = client->dev.of_node;
+
+	of_clk_del_provider(node);
+
+	return 0;
+}
+
+static struct platform_driver rk808_clkout_driver = {
+	.probe = rk808_clkout_probe,
+	.remove = rk808_clkout_remove,
+	.driver		= {
+		.name	= "rk808-clkout",
+	},
+};
+
+module_platform_driver(rk808_clkout_driver);
+
+MODULE_DESCRIPTION("Clkout driver for the rk808 series PMICs");
+MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:rk808-clkout");

drivers/infiniband/ulp/srpt/ib_srpt.c

@@ -3574,7 +3574,7 @@ static int srpt_parse_i_port_id(u8 i_port_id[16], const char *name)
 	int ret, rc;
 
 	p = name;
-	if (strnicmp(p, "0x", 2) == 0)
+	if (strncasecmp(p, "0x", 2) == 0)
 		p += 2;
 	ret = -EINVAL;
 	len = strlen(p);

drivers/input/touchscreen/edt-ft5x06.c

@@ -812,7 +812,7 @@ static int edt_ft5x06_ts_identify(struct i2c_client *client,
 	/* if we find something consistent, stay with that assumption
 	 * at least M09 won't send 3 bytes here
 	 */
-	if (!(strnicmp(rdbuf + 1, "EP0", 3))) {
+	if (!(strncasecmp(rdbuf + 1, "EP0", 3))) {
 		tsdata->version = M06;
 
 		/* remove last '$' end marker */

drivers/memstick/host/r592.c

@@ -188,6 +188,7 @@ static void r592_host_reset(struct r592_device *dev)
 	r592_set_mode(dev, dev->parallel_mode);
 }
 
+#ifdef CONFIG_PM_SLEEP
 /* Disable all hardware interrupts */
 static void r592_clear_interrupts(struct r592_device *dev)
 {
@@ -195,6 +196,7 @@ static void r592_clear_interrupts(struct r592_device *dev)
 	r592_clear_reg_mask(dev, R592_REG_MSC, IRQ_ALL_ACK_MASK);
 	r592_clear_reg_mask(dev, R592_REG_MSC, IRQ_ALL_EN_MASK);
 }
+#endif
 
 /* Tests if there is an CRC error */
 static int r592_test_io_error(struct r592_device *dev)

drivers/misc/altera-stapl/altera.c

@@ -454,7 +454,7 @@ static int altera_execute(struct altera_state *astate,
 
 				name = &p[str_table + name_id];
 
-				if (strnicmp(aconf->action, name, strlen(name)) == 0) {
+				if (strncasecmp(aconf->action, name, strlen(name)) == 0) {
 					action_found = 1;
 					current_proc =
 						get_unaligned_be32(&p[action_table +
@@ -2176,7 +2176,7 @@ static int altera_get_note(u8 *p, s32 program_size,
 			key_ptr = &p[note_strings +
 					get_unaligned_be32(
 					&p[note_table + (8 * i)])];
-			if ((strnicmp(key, key_ptr, strlen(key_ptr)) == 0) &&
+			if ((strncasecmp(key, key_ptr, strlen(key_ptr)) == 0) &&
 						(key != NULL)) {
 				status = 0;
 

drivers/net/wireless/hostap/hostap_proc.c

@@ -168,7 +168,6 @@ static int prism2_bss_list_proc_show(struct seq_file *m, void *v)
 	local_info_t *local = m->private;
 	struct list_head *ptr = v;
 	struct hostap_bss_info *bss;
-	int i;
 
 	if (ptr == &local->bss_list) {
 		seq_printf(m, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t"
@@ -181,9 +180,7 @@ static int prism2_bss_list_proc_show(struct seq_file *m, void *v)
 		   bss->bssid, bss->last_update,
 		   bss->count, bss->capab_info);
 
-	for (i = 0; i < bss->ssid_len; i++)
-		seq_putc(m,bss->ssid[i] >= 32 && bss->ssid[i] < 127 ?
-			   bss->ssid[i] : '_');
+	seq_printf(m, "%*pE", (int)bss->ssid_len, bss->ssid);
 
 	seq_putc(m, '\t');
 	seq_printf(m, "%*phN", (int)bss->ssid_len, bss->ssid);

drivers/net/wireless/ipw2x00/ipw2100.c

@@ -2005,7 +2005,6 @@ static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
 	u32 chan;
 	char *txratename;
 	u8 bssid[ETH_ALEN];
-	DECLARE_SSID_BUF(ssid);
 
 	/*
 	 * TBD: BSSID is usually 00:00:00:00:00:00 here and not
@@ -2067,8 +2066,8 @@ static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
 		break;
 	}
 
-	IPW_DEBUG_INFO("%s: Associated with '%s' at %s, channel %d (BSSID=%pM)\n",
-		       priv->net_dev->name, print_ssid(ssid, essid, essid_len),
+	IPW_DEBUG_INFO("%s: Associated with '%*pE' at %s, channel %d (BSSID=%pM)\n",
+		       priv->net_dev->name, essid_len, essid,
 		       txratename, chan, bssid);
 
 	/* now we copy read ssid into dev */
@@ -2095,9 +2094,8 @@ static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
 		.host_command_length = ssid_len
 	};
 	int err;
-	DECLARE_SSID_BUF(ssid);
 
-	IPW_DEBUG_HC("SSID: '%s'\n", print_ssid(ssid, essid, ssid_len));
+	IPW_DEBUG_HC("SSID: '%*pE'\n", ssid_len, essid);
 
 	if (ssid_len)
 		memcpy(cmd.host_command_parameters, essid, ssid_len);
@@ -2138,11 +2136,8 @@ static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
 
 static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
 {
-	DECLARE_SSID_BUF(ssid);
-
 	IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
-		  "disassociated: '%s' %pM\n",
-		  print_ssid(ssid, priv->essid, priv->essid_len),
+		  "disassociated: '%*pE' %pM\n", priv->essid_len, priv->essid,
 		  priv->bssid);
 
 	priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
@@ -6975,7 +6970,6 @@ static int ipw2100_wx_set_essid(struct net_device *dev,
 	char *essid = "";	/* ANY */
 	int length = 0;
 	int err = 0;
-	DECLARE_SSID_BUF(ssid);
 
 	mutex_lock(&priv->action_mutex);
 	if (!(priv->status & STATUS_INITIALIZED)) {
@@ -7005,8 +6999,7 @@ static int ipw2100_wx_set_essid(struct net_device *dev,
 		goto done;
 	}
 
-	IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n",
-		     print_ssid(ssid, essid, length), length);
+	IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, essid, length);
 
 	priv->essid_len = length;
 	memcpy(priv->essid, essid, priv->essid_len);
@@ -7027,13 +7020,12 @@ static int ipw2100_wx_get_essid(struct net_device *dev,
 	 */
 
 	struct ipw2100_priv *priv = libipw_priv(dev);
-	DECLARE_SSID_BUF(ssid);
 
 	/* If we are associated, trying to associate, or have a statically
 	 * configured ESSID then return that; otherwise return ANY */
 	if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) {
-		IPW_DEBUG_WX("Getting essid: '%s'\n",
-			     print_ssid(ssid, priv->essid, priv->essid_len));
+		IPW_DEBUG_WX("Getting essid: '%*pE'\n",
+			     priv->essid_len, priv->essid);
 		memcpy(extra, priv->essid, priv->essid_len);
 		wrqu->essid.length = priv->essid_len;
 		wrqu->essid.flags = 1;	/* active */

drivers/net/wireless/ipw2x00/libipw_rx.c

@@ -1120,7 +1120,6 @@ static int libipw_parse_info_param(struct libipw_info_element
 				      *info_element, u16 length,
 				      struct libipw_network *network)
 {
-	DECLARE_SSID_BUF(ssid);
 	u8 i;
 #ifdef CONFIG_LIBIPW_DEBUG
 	char rates_str[64];
@@ -1151,10 +1150,9 @@ static int libipw_parse_info_param(struct libipw_info_element
 				memset(network->ssid + network->ssid_len, 0,
 				       IW_ESSID_MAX_SIZE - network->ssid_len);
 
-			LIBIPW_DEBUG_MGMT("WLAN_EID_SSID: '%s' len=%d.\n",
-					     print_ssid(ssid, network->ssid,
-							network->ssid_len),
-					     network->ssid_len);
+			LIBIPW_DEBUG_MGMT("WLAN_EID_SSID: '%*pE' len=%d.\n",
+					  network->ssid_len, network->ssid,
+					  network->ssid_len);
 			break;
 
 		case WLAN_EID_SUPP_RATES:
@@ -1399,8 +1397,6 @@ static int libipw_network_init(struct libipw_device *ieee, struct libipw_probe_r
 					 struct libipw_network *network,
 					 struct libipw_rx_stats *stats)
 {
-	DECLARE_SSID_BUF(ssid);
-
 	network->qos_data.active = 0;
 	network->qos_data.supported = 0;
 	network->qos_data.param_count = 0;
@@ -1447,11 +1443,9 @@ static int libipw_network_init(struct libipw_device *ieee, struct libipw_probe_r
 	}
 
 	if (network->mode == 0) {
-		LIBIPW_DEBUG_SCAN("Filtered out '%s (%pM)' "
-				     "network.\n",
-				     print_ssid(ssid, network->ssid,
-						 network->ssid_len),
-				     network->bssid);
+		LIBIPW_DEBUG_SCAN("Filtered out '%*pE (%pM)' network.\n",
+				  network->ssid_len, network->ssid,
+				  network->bssid);
 		return 1;
 	}
 
@@ -1563,11 +1557,9 @@ static void libipw_process_probe_response(struct libipw_device
 	struct libipw_info_element *info_element = beacon->info_element;
 #endif
 	unsigned long flags;
-	DECLARE_SSID_BUF(ssid);
 
-	LIBIPW_DEBUG_SCAN("'%s' (%pM"
-		     "): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n",
-		     print_ssid(ssid, info_element->data, info_element->len),
+	LIBIPW_DEBUG_SCAN("'%*pE' (%pM): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n",
+		     info_element->len, info_element->data,
 		     beacon->header.addr3,
 		     (beacon->capability & cpu_to_le16(1 << 0xf)) ? '1' : '0',
 		     (beacon->capability & cpu_to_le16(1 << 0xe)) ? '1' : '0',
@@ -1587,12 +1579,11 @@ static void libipw_process_probe_response(struct libipw_device
 		     (beacon->capability & cpu_to_le16(1 << 0x0)) ? '1' : '0');
 
 	if (libipw_network_init(ieee, beacon, &network, stats)) {
-		LIBIPW_DEBUG_SCAN("Dropped '%s' (%pM) via %s.\n",
-				     print_ssid(ssid, info_element->data,
-						 info_element->len),
-				     beacon->header.addr3,
-				     is_beacon(beacon->header.frame_ctl) ?
-				     "BEACON" : "PROBE RESPONSE");
+		LIBIPW_DEBUG_SCAN("Dropped '%*pE' (%pM) via %s.\n",
+				  info_element->len, info_element->data,
+				  beacon->header.addr3,
+				  is_beacon(beacon->header.frame_ctl) ?
+				  "BEACON" : "PROBE RESPONSE");
 		return;
 	}
 
@@ -1624,11 +1615,9 @@ static void libipw_process_probe_response(struct libipw_device
 			/* If there are no more slots, expire the oldest */
 			list_del(&oldest->list);
 			target = oldest;
-			LIBIPW_DEBUG_SCAN("Expired '%s' (%pM) from "
-					     "network list.\n",
-					     print_ssid(ssid, target->ssid,
-							 target->ssid_len),
-					     target->bssid);
+			LIBIPW_DEBUG_SCAN("Expired '%*pE' (%pM) from network list.\n",
+					  target->ssid_len, target->ssid,
+					  target->bssid);
 			libipw_network_reset(target);
 		} else {
 			/* Otherwise just pull from the free list */
@@ -1638,23 +1627,21 @@ static void libipw_process_probe_response(struct libipw_device
 		}
 
 #ifdef CONFIG_LIBIPW_DEBUG
-		LIBIPW_DEBUG_SCAN("Adding '%s' (%pM) via %s.\n",
-				     print_ssid(ssid, network.ssid,
-						 network.ssid_len),
-				     network.bssid,
-				     is_beacon(beacon->header.frame_ctl) ?
-				     "BEACON" : "PROBE RESPONSE");
+		LIBIPW_DEBUG_SCAN("Adding '%*pE' (%pM) via %s.\n",
+				  network.ssid_len, network.ssid,
+				  network.bssid,
+				  is_beacon(beacon->header.frame_ctl) ?
+				  "BEACON" : "PROBE RESPONSE");
 #endif
 		memcpy(target, &network, sizeof(*target));
 		network.ibss_dfs = NULL;
 		list_add_tail(&target->list, &ieee->network_list);
 	} else {
-		LIBIPW_DEBUG_SCAN("Updating '%s' (%pM) via %s.\n",
-				     print_ssid(ssid, target->ssid,
-						 target->ssid_len),
-				     target->bssid,
-				     is_beacon(beacon->header.frame_ctl) ?
-				     "BEACON" : "PROBE RESPONSE");
+		LIBIPW_DEBUG_SCAN("Updating '%*pE' (%pM) via %s.\n",
+				  target->ssid_len, target->ssid,
+				  target->bssid,
+				  is_beacon(beacon->header.frame_ctl) ?
+				  "BEACON" : "PROBE RESPONSE");
 		update_network(target, &network);
 		network.ibss_dfs = NULL;
 	}

drivers/net/wireless/ipw2x00/libipw_wx.c

@@ -272,7 +272,6 @@ int libipw_wx_get_scan(struct libipw_device *ieee,
 	char *ev = extra;
 	char *stop = ev + wrqu->data.length;
 	int i = 0;
-	DECLARE_SSID_BUF(ssid);
 
 	LIBIPW_DEBUG_WX("Getting scan\n");
 
@@ -290,12 +289,10 @@ int libipw_wx_get_scan(struct libipw_device *ieee,
 			ev = libipw_translate_scan(ieee, ev, stop, network,
 						      info);
 		else {
-			LIBIPW_DEBUG_SCAN("Not showing network '%s ("
-					     "%pM)' due to age (%ums).\n",
-					     print_ssid(ssid, network->ssid,
-							 network->ssid_len),
-					     network->bssid,
-					     elapsed_jiffies_msecs(
+			LIBIPW_DEBUG_SCAN("Not showing network '%*pE (%pM)' due to age (%ums).\n",
+					  network->ssid_len, network->ssid,
+					  network->bssid,
+					  elapsed_jiffies_msecs(
 					               network->last_scanned));
 		}
 	}
@@ -322,7 +319,6 @@ int libipw_wx_set_encode(struct libipw_device *ieee,
 	int i, key, key_provided, len;
 	struct lib80211_crypt_data **crypt;
 	int host_crypto = ieee->host_encrypt || ieee->host_decrypt;
-	DECLARE_SSID_BUF(ssid);
 
 	LIBIPW_DEBUG_WX("SET_ENCODE\n");
 
@@ -417,8 +413,8 @@ int libipw_wx_set_encode(struct libipw_device *ieee,
 		if (len > erq->length)
 			memset(sec.keys[key] + erq->length, 0,
 			       len - erq->length);
-		LIBIPW_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n",
-				   key, print_ssid(ssid, sec.keys[key], len),
+		LIBIPW_DEBUG_WX("Setting key %d to '%*pE' (%d:%d bytes)\n",
+				   key, len, sec.keys[key],
 				   erq->length, len);
 		sec.key_sizes[key] = len;
 		if (*crypt)

drivers/net/wireless/libertas/cfg.c

@@ -590,7 +590,6 @@ static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
 		int chan_no = -1;
 		const u8 *ssid = NULL;
 		u8 ssid_len = 0;
-		DECLARE_SSID_BUF(ssid_buf);
 
 		int len = get_unaligned_le16(pos);
 		pos += 2;
@@ -644,10 +643,8 @@ static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
 			struct ieee80211_channel *channel =
 				ieee80211_get_channel(wiphy, freq);
 
-			lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, "
-				     "%d dBm\n",
-				     bssid, capa, chan_no,
-				     print_ssid(ssid_buf, ssid, ssid_len),
+			lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %*pE, %d dBm\n",
+				     bssid, capa, chan_no, ssid_len, ssid,
 				     LBS_SCAN_RSSI_TO_MBM(rssi)/100);
 
 			if (channel &&
@@ -1984,7 +1981,6 @@ static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
 	struct lbs_private *priv = wiphy_priv(wiphy);
 	int ret = 0;
 	struct cfg80211_bss *bss;
-	DECLARE_SSID_BUF(ssid_buf);
 
 	if (dev == priv->mesh_dev)
 		return -EOPNOTSUPP;

drivers/net/wireless/libertas/mesh.c

@@ -93,7 +93,6 @@ static int lbs_mesh_config(struct lbs_private *priv, uint16_t action,
 {
 	struct cmd_ds_mesh_config cmd;
 	struct mrvl_meshie *ie;
-	DECLARE_SSID_BUF(ssid);
 
 	memset(&cmd, 0, sizeof(cmd));
 	cmd.channel = cpu_to_le16(chan);
@@ -122,9 +121,9 @@ static int lbs_mesh_config(struct lbs_private *priv, uint16_t action,
 	default:
 		return -1;
 	}
-	lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
-		    action, priv->mesh_tlv, chan,
-		    print_ssid(ssid, priv->mesh_ssid, priv->mesh_ssid_len));
+	lbs_deb_cmd("mesh config action %d type %x channel %d SSID %*pE\n",
+		    action, priv->mesh_tlv, chan, priv->mesh_ssid_len,
+		    priv->mesh_ssid);
 
 	return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
 }

drivers/platform/x86/thinkpad_acpi.c

@@ -8878,13 +8878,13 @@ static int __must_check __init get_thinkpad_model_data(
 	}
 
 	s = dmi_get_system_info(DMI_PRODUCT_VERSION);
-	if (s && !(strnicmp(s, "ThinkPad", 8) && strnicmp(s, "Lenovo", 6))) {
+	if (s && !(strncasecmp(s, "ThinkPad", 8) && strncasecmp(s, "Lenovo", 6))) {
 		tp->model_str = kstrdup(s, GFP_KERNEL);
 		if (!tp->model_str)
 			return -ENOMEM;
 	} else {
 		s = dmi_get_system_info(DMI_BIOS_VENDOR);
-		if (s && !(strnicmp(s, "Lenovo", 6))) {
+		if (s && !(strncasecmp(s, "Lenovo", 6))) {
 			tp->model_str = kstrdup(s, GFP_KERNEL);
 			if (!tp->model_str)
 				return -ENOMEM;

drivers/pnp/interface.c

@@ -346,41 +346,41 @@ static ssize_t resources_store(struct device *dmdev,
 	}
 
 	buf = skip_spaces(buf);
-	if (!strnicmp(buf, "disable", 7)) {
+	if (!strncasecmp(buf, "disable", 7)) {
 		retval = pnp_disable_dev(dev);
 		goto done;
 	}
-	if (!strnicmp(buf, "activate", 8)) {
+	if (!strncasecmp(buf, "activate", 8)) {
 		retval = pnp_activate_dev(dev);
 		goto done;
 	}
-	if (!strnicmp(buf, "fill", 4)) {
+	if (!strncasecmp(buf, "fill", 4)) {
 		if (dev->active)
 			goto done;
 		retval = pnp_auto_config_dev(dev);
 		goto done;
 	}
-	if (!strnicmp(buf, "auto", 4)) {
+	if (!strncasecmp(buf, "auto", 4)) {
 		if (dev->active)
 			goto done;
 		pnp_init_resources(dev);
 		retval = pnp_auto_config_dev(dev);
 		goto done;
 	}
-	if (!strnicmp(buf, "clear", 5)) {
+	if (!strncasecmp(buf, "clear", 5)) {
 		if (dev->active)
 			goto done;
 		pnp_init_resources(dev);
 		goto done;
 	}
-	if (!strnicmp(buf, "get", 3)) {
+	if (!strncasecmp(buf, "get", 3)) {
 		mutex_lock(&pnp_res_mutex);
 		if (pnp_can_read(dev))
 			dev->protocol->get(dev);
 		mutex_unlock(&pnp_res_mutex);
 		goto done;
 	}
-	if (!strnicmp(buf, "set", 3)) {
+	if (!strncasecmp(buf, "set", 3)) {
 		resource_size_t start;
 		resource_size_t end;
 		unsigned long flags;
@@ -392,31 +392,31 @@ static ssize_t resources_store(struct device *dmdev,
 		mutex_lock(&pnp_res_mutex);
 		while (1) {
 			buf = skip_spaces(buf);
-			if (!strnicmp(buf, "io", 2)) {
+			if (!strncasecmp(buf, "io", 2)) {
 				buf = pnp_get_resource_value(buf + 2,
 							     IORESOURCE_IO,
 							     &start, &end,
 							     &flags);
 				pnp_add_io_resource(dev, start, end, flags);
-			} else if (!strnicmp(buf, "mem", 3)) {
+			} else if (!strncasecmp(buf, "mem", 3)) {
 				buf = pnp_get_resource_value(buf + 3,
 							     IORESOURCE_MEM,
 							     &start, &end,
 							     &flags);
 				pnp_add_mem_resource(dev, start, end, flags);
-			} else if (!strnicmp(buf, "irq", 3)) {
+			} else if (!strncasecmp(buf, "irq", 3)) {
 				buf = pnp_get_resource_value(buf + 3,
 							     IORESOURCE_IRQ,
 							     &start, NULL,
 							     &flags);
 				pnp_add_irq_resource(dev, start, flags);
-			} else if (!strnicmp(buf, "dma", 3)) {
+			} else if (!strncasecmp(buf, "dma", 3)) {
 				buf = pnp_get_resource_value(buf + 3,
 							     IORESOURCE_DMA,
 							     &start, NULL,
 							     &flags);
 				pnp_add_dma_resource(dev, start, flags);
-			} else if (!strnicmp(buf, "bus", 3)) {
+			} else if (!strncasecmp(buf, "bus", 3)) {
 				buf = pnp_get_resource_value(buf + 3,
 							     IORESOURCE_BUS,
 							     &start, &end,

drivers/rtc/Kconfig

@@ -288,6 +288,26 @@ config RTC_DRV_MAX77686
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-max77686.
 
+config RTC_DRV_RK808
+	tristate "Rockchip RK808 RTC"
+	depends on MFD_RK808
+	help
+	  If you say yes here you will get support for the
+	  RTC of RK808 PMIC.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rk808-rtc.
+
+config RTC_DRV_MAX77802
+	tristate "Maxim 77802 RTC"
+	depends on MFD_MAX77686
+	help
+	  If you say yes here you will get support for the
+	  RTC of Maxim MAX77802 PMIC.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-max77802.
+
 config RTC_DRV_RS5C372
 	tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
 	help
@@ -732,6 +752,7 @@ config RTC_DRV_DS1216
 
 config RTC_DRV_DS1286
 	tristate "Dallas DS1286"
+	depends on HAS_IOMEM
 	help
 	  If you say yes here you get support for the Dallas DS1286 RTC chips.
 
@@ -743,6 +764,7 @@ config RTC_DRV_DS1302
 
 config RTC_DRV_DS1511
 	tristate "Dallas DS1511"
+	depends on HAS_IOMEM
 	help
 	  If you say yes here you get support for the
 	  Dallas DS1511 timekeeping/watchdog chip.
@@ -752,6 +774,7 @@ config RTC_DRV_DS1511
 
 config RTC_DRV_DS1553
 	tristate "Maxim/Dallas DS1553"
+	depends on HAS_IOMEM
 	help
 	  If you say yes here you get support for the
 	  Maxim/Dallas DS1553 timekeeping chip.
@@ -761,6 +784,7 @@ config RTC_DRV_DS1553
 
 config RTC_DRV_DS1742
 	tristate "Maxim/Dallas DS1742/1743"
+	depends on HAS_IOMEM
 	help
 	  If you say yes here you get support for the
 	  Maxim/Dallas DS1742/1743 timekeeping chip.
@@ -816,6 +840,7 @@ config RTC_DRV_EFI
 
 config RTC_DRV_STK17TA8
 	tristate "Simtek STK17TA8"
+	depends on HAS_IOMEM
 	help
 	  If you say yes here you get support for the
 	  Simtek STK17TA8 timekeeping chip.
@@ -834,6 +859,7 @@ config RTC_DRV_M48T86
 
 config RTC_DRV_M48T35
 	tristate "ST M48T35"
+	depends on HAS_IOMEM
 	help
 	  If you say Y here you will get support for the
 	  ST M48T35 RTC chip.
@@ -843,6 +869,7 @@ config RTC_DRV_M48T35
 
 config RTC_DRV_M48T59
 	tristate "ST M48T59/M48T08/M48T02"
+	depends on HAS_IOMEM
 	help
 	  If you say Y here you will get support for the
 	  ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
@@ -855,6 +882,7 @@ config RTC_DRV_M48T59
 
 config RTC_DRV_MSM6242
 	tristate "Oki MSM6242"
+	depends on HAS_IOMEM
 	help
 	  If you say yes here you get support for the Oki MSM6242
 	  timekeeping chip. It is used in some Amiga models (e.g. A2000).
@@ -864,6 +892,7 @@ config RTC_DRV_MSM6242
 
 config RTC_DRV_BQ4802
 	tristate "TI BQ4802"
+	depends on HAS_IOMEM
 	help
 	  If you say Y here you will get support for the TI
 	  BQ4802 RTC chip.
@@ -873,6 +902,7 @@ config RTC_DRV_BQ4802
 
 config RTC_DRV_RP5C01
 	tristate "Ricoh RP5C01"
+	depends on HAS_IOMEM
 	help
 	  If you say yes here you get support for the Ricoh RP5C01
 	  timekeeping chip. It is used in some Amiga models (e.g. A3000
@@ -1374,6 +1404,7 @@ config RTC_DRV_MOXART
 
 config RTC_DRV_XGENE
 	tristate "APM X-Gene RTC"
+	depends on HAS_IOMEM
 	help
 	  If you say yes here you get support for the APM X-Gene SoC real time
 	  clock.

drivers/rtc/Makefile

@@ -85,6 +85,7 @@ obj-$(CONFIG_RTC_DRV_MAX8998)	+= rtc-max8998.o
 obj-$(CONFIG_RTC_DRV_MAX8997)	+= rtc-max8997.o
 obj-$(CONFIG_RTC_DRV_MAX6902)	+= rtc-max6902.o
 obj-$(CONFIG_RTC_DRV_MAX77686)	+= rtc-max77686.o
+obj-$(CONFIG_RTC_DRV_MAX77802)  += rtc-max77802.o
 obj-$(CONFIG_RTC_DRV_MC13XXX)	+= rtc-mc13xxx.o
 obj-$(CONFIG_RTC_DRV_MCP795)	+= rtc-mcp795.o
 obj-$(CONFIG_RTC_DRV_MSM6242)	+= rtc-msm6242.o
@@ -109,6 +110,7 @@ obj-$(CONFIG_RTC_DRV_PUV3)	+= rtc-puv3.o
 obj-$(CONFIG_RTC_DRV_PXA)	+= rtc-pxa.o
 obj-$(CONFIG_RTC_DRV_R9701)	+= rtc-r9701.o
 obj-$(CONFIG_RTC_DRV_RC5T583)	+= rtc-rc5t583.o
+obj-$(CONFIG_RTC_DRV_RK808)	+= rtc-rk808.o
 obj-$(CONFIG_RTC_DRV_RP5C01)	+= rtc-rp5c01.o
 obj-$(CONFIG_RTC_DRV_RS5C313)	+= rtc-rs5c313.o
 obj-$(CONFIG_RTC_DRV_RS5C348)	+= rtc-rs5c348.o

drivers/rtc/rtc-bq32k.c

@@ -2,10 +2,14 @@
  * Driver for TI BQ32000 RTC.
  *
  * Copyright (C) 2009 Semihalf.
+ * Copyright (C) 2014 Pavel Machek <pavel@denx.de>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
+ *
+ * You can get hardware description at
+ * http://www.ti.com/lit/ds/symlink/bq32000.pdf
  */
 
 #include <linux/module.h>
@@ -27,6 +31,10 @@
 #define BQ32K_CENT		0x40	/* Century flag */
 #define BQ32K_CENT_EN		0x80	/* Century flag enable bit */
 
+#define BQ32K_CALIBRATION	0x07	/* CAL_CFG1, calibration and control */
+#define BQ32K_TCH2		0x08	/* Trickle charge enable */
+#define BQ32K_CFG2		0x09	/* Trickle charger control */
+
 struct bq32k_regs {
 	uint8_t		seconds;
 	uint8_t		minutes;
@@ -122,6 +130,57 @@ static const struct rtc_class_ops bq32k_rtc_ops = {
 	.set_time	= bq32k_rtc_set_time,
 };
 
+static int trickle_charger_of_init(struct device *dev, struct device_node *node)
+{
+	unsigned char reg;
+	int error;
+	u32 ohms = 0;
+
+	if (of_property_read_u32(node, "trickle-resistor-ohms" , &ohms))
+		return 0;
+
+	switch (ohms) {
+	case 180+940:
+		/*
+		 * TCHE[3:0] == 0x05, TCH2 == 1, TCFE == 0 (charging
+		 * over diode and 940ohm resistor)
+		 */
+
+		if (of_property_read_bool(node, "trickle-diode-disable")) {
+			dev_err(dev, "diode and resistor mismatch\n");
+			return -EINVAL;
+		}
+		reg = 0x05;
+		break;
+
+	case 180+20000:
+		/* diode disabled */
+
+		if (!of_property_read_bool(node, "trickle-diode-disable")) {
+			dev_err(dev, "bq32k: diode and resistor mismatch\n");
+			return -EINVAL;
+		}
+		reg = 0x25;
+		break;
+
+	default:
+		dev_err(dev, "invalid resistor value (%d)\n", ohms);
+		return -EINVAL;
+	}
+
+	error = bq32k_write(dev, &reg, BQ32K_CFG2, 1);
+	if (error)
+		return error;
+
+	reg = 0x20;
+	error = bq32k_write(dev, &reg, BQ32K_TCH2, 1);
+	if (error)
+		return error;
+
+	dev_info(dev, "Enabled trickle RTC battery charge.\n");
+	return 0;
+}
+
 static int bq32k_probe(struct i2c_client *client,
 				const struct i2c_device_id *id)
 {
@@ -153,6 +212,9 @@ static int bq32k_probe(struct i2c_client *client,
 	if (error)
 		return error;
 
+	if (client && client->dev.of_node)
+		trickle_charger_of_init(dev, client->dev.of_node);
+
 	rtc = devm_rtc_device_register(&client->dev, bq32k_driver.driver.name,
 						&bq32k_rtc_ops, THIS_MODULE);
 	if (IS_ERR(rtc))

drivers/rtc/rtc-cmos.c

@@ -856,7 +856,7 @@ static void __exit cmos_do_remove(struct device *dev)
 	cmos->dev = NULL;
 }
 
-#ifdef	CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
 
 static int cmos_suspend(struct device *dev)
 {
@@ -907,6 +907,8 @@ static inline int cmos_poweroff(struct device *dev)
 	return cmos_suspend(dev);
 }
 
+#ifdef	CONFIG_PM_SLEEP
+
 static int cmos_resume(struct device *dev)
 {
 	struct cmos_rtc	*cmos = dev_get_drvdata(dev);
@@ -954,6 +956,7 @@ static int cmos_resume(struct device *dev)
 	return 0;
 }
 
+#endif
 #else
 
 static inline int cmos_poweroff(struct device *dev)

drivers/rtc/rtc-ds1307.c

@@ -126,9 +126,14 @@ struct chip_desc {
 	u16			nvram_offset;
 	u16			nvram_size;
 	u16			trickle_charger_reg;
+	u8			trickle_charger_setup;
+	u8			(*do_trickle_setup)(struct i2c_client *, uint32_t, bool);
 };
 
-static const struct chip_desc chips[last_ds_type] = {
+static u8 do_trickle_setup_ds1339(struct i2c_client *,
+				  uint32_t ohms, bool diode);
+
+static struct chip_desc chips[last_ds_type] = {
 	[ds_1307] = {
 		.nvram_offset	= 8,
 		.nvram_size	= 56,
@@ -143,6 +148,7 @@ static const struct chip_desc chips[last_ds_type] = {
 	[ds_1339] = {
 		.alarm		= 1,
 		.trickle_charger_reg = 0x10,
+		.do_trickle_setup = &do_trickle_setup_ds1339,
 	},
 	[ds_1340] = {
 		.trickle_charger_reg = 0x08,
@@ -833,15 +839,58 @@ ds1307_nvram_write(struct file *filp, struct kobject *kobj,
 	return count;
 }
 
+
 /*----------------------------------------------------------------------*/
 
+static u8 do_trickle_setup_ds1339(struct i2c_client *client,
+				  uint32_t ohms, bool diode)
+{
+	u8 setup = (diode) ? DS1307_TRICKLE_CHARGER_DIODE :
+		DS1307_TRICKLE_CHARGER_NO_DIODE;
+
+	switch (ohms) {
+	case 250:
+		setup |= DS1307_TRICKLE_CHARGER_250_OHM;
+		break;
+	case 2000:
+		setup |= DS1307_TRICKLE_CHARGER_2K_OHM;
+		break;
+	case 4000:
+		setup |= DS1307_TRICKLE_CHARGER_4K_OHM;
+		break;
+	default:
+		dev_warn(&client->dev,
+			 "Unsupported ohm value %u in dt\n", ohms);
+		return 0;
+	}
+	return setup;
+}
+
+static void ds1307_trickle_of_init(struct i2c_client *client,
+				   struct chip_desc *chip)
+{
+	uint32_t ohms = 0;
+	bool diode = true;
+
+	if (!chip->do_trickle_setup)
+		goto out;
+	if (of_property_read_u32(client->dev.of_node, "trickle-resistor-ohms" , &ohms))
+		goto out;
+	if (of_property_read_bool(client->dev.of_node, "trickle-diode-disable"))
+		diode = false;
+	chip->trickle_charger_setup = chip->do_trickle_setup(client,
+							     ohms, diode);
+out:
+	return;
+}
+
 static int ds1307_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct ds1307		*ds1307;
 	int			err = -ENODEV;
 	int			tmp;
-	const struct chip_desc	*chip = &chips[id->driver_data];
+	struct chip_desc	*chip = &chips[id->driver_data];
 	struct i2c_adapter	*adapter = to_i2c_adapter(client->dev.parent);
 	bool			want_irq = false;
 	unsigned char		*buf;
@@ -866,9 +915,19 @@ static int ds1307_probe(struct i2c_client *client,
 	ds1307->client	= client;
 	ds1307->type	= id->driver_data;
 
-	if (pdata && pdata->trickle_charger_setup && chip->trickle_charger_reg)
+	if (!pdata && client->dev.of_node)
+		ds1307_trickle_of_init(client, chip);
+	else if (pdata && pdata->trickle_charger_setup)
+		chip->trickle_charger_setup = pdata->trickle_charger_setup;
+
+	if (chip->trickle_charger_setup && chip->trickle_charger_reg) {
+		dev_dbg(&client->dev, "writing trickle charger info 0x%x to 0x%x\n",
+		    DS13XX_TRICKLE_CHARGER_MAGIC | chip->trickle_charger_setup,
+		    chip->trickle_charger_reg);
 		i2c_smbus_write_byte_data(client, chip->trickle_charger_reg,
-			DS13XX_TRICKLE_CHARGER_MAGIC | pdata->trickle_charger_setup);
+		    DS13XX_TRICKLE_CHARGER_MAGIC |
+		    chip->trickle_charger_setup);
+	}
 
 	buf = ds1307->regs;
 	if (i2c_check_functionality(adapter, I2C_FUNC_SMBUS_I2C_BLOCK)) {

drivers/rtc/rtc-isl12022.c

@@ -274,7 +274,7 @@ static int isl12022_probe(struct i2c_client *client,
 }
 
 #ifdef CONFIG_OF
-static struct of_device_id isl12022_dt_match[] = {
+static const struct of_device_id isl12022_dt_match[] = {
 	{ .compatible = "isl,isl12022" },
 	{ },
 };

drivers/rtc/rtc-max77686.c

@@ -32,15 +32,6 @@
 #define RTC_UDR_MASK			(1 << RTC_UDR_SHIFT)
 #define RTC_RBUDR_SHIFT			4
 #define RTC_RBUDR_MASK			(1 << RTC_RBUDR_SHIFT)
-/* WTSR and SMPL Register */
-#define WTSRT_SHIFT			0
-#define SMPLT_SHIFT			2
-#define WTSR_EN_SHIFT			6
-#define SMPL_EN_SHIFT			7
-#define WTSRT_MASK			(3 << WTSRT_SHIFT)
-#define SMPLT_MASK			(3 << SMPLT_SHIFT)
-#define WTSR_EN_MASK			(1 << WTSR_EN_SHIFT)
-#define SMPL_EN_MASK			(1 << SMPL_EN_SHIFT)
 /* RTC Hour register */
 #define HOUR_PM_SHIFT			6
 #define HOUR_PM_MASK			(1 << HOUR_PM_SHIFT)
@@ -49,7 +40,6 @@
 #define ALARM_ENABLE_MASK		(1 << ALARM_ENABLE_SHIFT)
 
 #define MAX77686_RTC_UPDATE_DELAY	16
-#undef MAX77686_RTC_WTSR_SMPL
 
 enum {
 	RTC_SEC = 0,
@@ -80,16 +70,6 @@ enum MAX77686_RTC_OP {
 	MAX77686_RTC_READ,
 };
 
-static inline int max77686_rtc_calculate_wday(u8 shifted)
-{
-	int counter = -1;
-	while (shifted) {
-		shifted >>= 1;
-		counter++;
-	}
-	return counter;
-}
-
 static void max77686_rtc_data_to_tm(u8 *data, struct rtc_time *tm,
 				   int rtc_24hr_mode)
 {
@@ -103,7 +83,8 @@ static void max77686_rtc_data_to_tm(u8 *data, struct rtc_time *tm,
 			tm->tm_hour += 12;
 	}
 
-	tm->tm_wday = max77686_rtc_calculate_wday(data[RTC_WEEKDAY] & 0x7f);
+	/* Only a single bit is set in data[], so fls() would be equivalent */
+	tm->tm_wday = ffs(data[RTC_WEEKDAY] & 0x7f) - 1;
 	tm->tm_mday = data[RTC_DATE] & 0x1f;
 	tm->tm_mon = (data[RTC_MONTH] & 0x0f) - 1;
 	tm->tm_year = (data[RTC_YEAR] & 0x7f) + 100;
@@ -412,64 +393,6 @@ static const struct rtc_class_ops max77686_rtc_ops = {
 	.alarm_irq_enable = max77686_rtc_alarm_irq_enable,
 };
 
-#ifdef MAX77686_RTC_WTSR_SMPL
-static void max77686_rtc_enable_wtsr(struct max77686_rtc_info *info, bool enable)
-{
-	int ret;
-	unsigned int val, mask;
-
-	if (enable)
-		val = (1 << WTSR_EN_SHIFT) | (3 << WTSRT_SHIFT);
-	else
-		val = 0;
-
-	mask = WTSR_EN_MASK | WTSRT_MASK;
-
-	dev_info(info->dev, "%s: %s WTSR\n", __func__,
-			enable ? "enable" : "disable");
-
-	ret = regmap_update_bits(info->max77686->rtc_regmap,
-				 MAX77686_WTSR_SMPL_CNTL, mask, val);
-	if (ret < 0) {
-		dev_err(info->dev, "%s: fail to update WTSR reg(%d)\n",
-				__func__, ret);
-		return;
-	}
-
-	max77686_rtc_update(info, MAX77686_RTC_WRITE);
-}
-
-static void max77686_rtc_enable_smpl(struct max77686_rtc_info *info, bool enable)
-{
-	int ret;
-	unsigned int val, mask;
-
-	if (enable)
-		val = (1 << SMPL_EN_SHIFT) | (0 << SMPLT_SHIFT);
-	else
-		val = 0;
-
-	mask = SMPL_EN_MASK | SMPLT_MASK;
-
-	dev_info(info->dev, "%s: %s SMPL\n", __func__,
-			enable ? "enable" : "disable");
-
-	ret = regmap_update_bits(info->max77686->rtc_regmap,
-				 MAX77686_WTSR_SMPL_CNTL, mask, val);
-	if (ret < 0) {
-		dev_err(info->dev, "%s: fail to update SMPL reg(%d)\n",
-				__func__, ret);
-		return;
-	}
-
-	max77686_rtc_update(info, MAX77686_RTC_WRITE);
-
-	val = 0;
-	regmap_read(info->max77686->rtc_regmap, MAX77686_WTSR_SMPL_CNTL, &val);
-	dev_info(info->dev, "%s: WTSR_SMPL(0x%02x)\n", __func__, val);
-}
-#endif /* MAX77686_RTC_WTSR_SMPL */
-
 static int max77686_rtc_init_reg(struct max77686_rtc_info *info)
 {
 	u8 data[2];
@@ -519,19 +442,12 @@ static int max77686_rtc_probe(struct platform_device *pdev)
 		goto err_rtc;
 	}
 
-#ifdef MAX77686_RTC_WTSR_SMPL
-	max77686_rtc_enable_wtsr(info, true);
-	max77686_rtc_enable_smpl(info, true);
-#endif
-
 	device_init_wakeup(&pdev->dev, 1);
 
 	info->rtc_dev = devm_rtc_device_register(&pdev->dev, "max77686-rtc",
 					&max77686_rtc_ops, THIS_MODULE);
 
 	if (IS_ERR(info->rtc_dev)) {
-		dev_info(&pdev->dev, "%s: fail\n", __func__);
-
 		ret = PTR_ERR(info->rtc_dev);
 		dev_err(&pdev->dev, "Failed to register RTC device: %d\n", ret);
 		if (ret == 0)
@@ -539,6 +455,12 @@ static int max77686_rtc_probe(struct platform_device *pdev)
 		goto err_rtc;
 	}
 
+	if (!max77686->rtc_irq_data) {
+		ret = -EINVAL;
+		dev_err(&pdev->dev, "%s: no RTC regmap IRQ chip\n", __func__);
+		goto err_rtc;
+	}
+
 	info->virq = regmap_irq_get_virq(max77686->rtc_irq_data,
 					 MAX77686_RTCIRQ_RTCA1);
 	if (!info->virq) {
@@ -556,33 +478,33 @@ static int max77686_rtc_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static void max77686_rtc_shutdown(struct platform_device *pdev)
+#ifdef CONFIG_PM_SLEEP
+static int max77686_rtc_suspend(struct device *dev)
 {
-#ifdef MAX77686_RTC_WTSR_SMPL
-	struct max77686_rtc_info *info = platform_get_drvdata(pdev);
-	int i;
-	u8 val = 0;
-
-	for (i = 0; i < 3; i++) {
-		max77686_rtc_enable_wtsr(info, false);
-		regmap_read(info->max77686->rtc_regmap, MAX77686_WTSR_SMPL_CNTL, &val);
-		dev_info(info->dev, "%s: WTSR_SMPL reg(0x%02x)\n", __func__,
-				val);
-		if (val & WTSR_EN_MASK) {
-			dev_emerg(info->dev, "%s: fail to disable WTSR\n",
-					__func__);
-		} else {
-			dev_info(info->dev, "%s: success to disable WTSR\n",
-					__func__);
-			break;
-		}
+	if (device_may_wakeup(dev)) {
+		struct max77686_rtc_info *info = dev_get_drvdata(dev);
+
+		return enable_irq_wake(info->virq);
 	}
 
-	/* Disable SMPL when power off */
-	max77686_rtc_enable_smpl(info, false);
-#endif /* MAX77686_RTC_WTSR_SMPL */
+	return 0;
 }
 
+static int max77686_rtc_resume(struct device *dev)
+{
+	if (device_may_wakeup(dev)) {
+		struct max77686_rtc_info *info = dev_get_drvdata(dev);
+
+		return disable_irq_wake(info->virq);
+	}
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(max77686_rtc_pm_ops,
+			 max77686_rtc_suspend, max77686_rtc_resume);
+
 static const struct platform_device_id rtc_id[] = {
 	{ "max77686-rtc", 0 },
 	{},
@@ -592,9 +514,9 @@ static struct platform_driver max77686_rtc_driver = {
 	.driver		= {
 		.name	= "max77686-rtc",
 		.owner	= THIS_MODULE,
+		.pm	= &max77686_rtc_pm_ops,
 	},
 	.probe		= max77686_rtc_probe,
-	.shutdown	= max77686_rtc_shutdown,
 	.id_table	= rtc_id,
 };
 

drivers/rtc/rtc-max77802.c

+/*
+ * RTC driver for Maxim MAX77802
+ *
+ * Copyright (C) 2013 Google, Inc
+ *
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ *
+ *  based on rtc-max8997.c
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/rtc.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/max77686-private.h>
+#include <linux/irqdomain.h>
+#include <linux/regmap.h>
+
+/* RTC Control Register */
+#define BCD_EN_SHIFT			0
+#define BCD_EN_MASK			(1 << BCD_EN_SHIFT)
+#define MODEL24_SHIFT			1
+#define MODEL24_MASK			(1 << MODEL24_SHIFT)
+/* RTC Update Register1 */
+#define RTC_UDR_SHIFT			0
+#define RTC_UDR_MASK			(1 << RTC_UDR_SHIFT)
+#define RTC_RBUDR_SHIFT			4
+#define RTC_RBUDR_MASK			(1 << RTC_RBUDR_SHIFT)
+/* RTC Hour register */
+#define HOUR_PM_SHIFT			6
+#define HOUR_PM_MASK			(1 << HOUR_PM_SHIFT)
+/* RTC Alarm Enable */
+#define ALARM_ENABLE_SHIFT		7
+#define ALARM_ENABLE_MASK		(1 << ALARM_ENABLE_SHIFT)
+
+/* For the RTCAE1 register, we write this value to enable the alarm */
+#define ALARM_ENABLE_VALUE		0x77
+
+#define MAX77802_RTC_UPDATE_DELAY_US	200
+
+enum {
+	RTC_SEC = 0,
+	RTC_MIN,
+	RTC_HOUR,
+	RTC_WEEKDAY,
+	RTC_MONTH,
+	RTC_YEAR,
+	RTC_DATE,
+	RTC_NR_TIME
+};
+
+struct max77802_rtc_info {
+	struct device		*dev;
+	struct max77686_dev	*max77802;
+	struct i2c_client	*rtc;
+	struct rtc_device	*rtc_dev;
+	struct mutex		lock;
+
+	struct regmap		*regmap;
+
+	int virq;
+	int rtc_24hr_mode;
+};
+
+enum MAX77802_RTC_OP {
+	MAX77802_RTC_WRITE,
+	MAX77802_RTC_READ,
+};
+
+static void max77802_rtc_data_to_tm(u8 *data, struct rtc_time *tm,
+				   int rtc_24hr_mode)
+{
+	tm->tm_sec = data[RTC_SEC] & 0xff;
+	tm->tm_min = data[RTC_MIN] & 0xff;
+	if (rtc_24hr_mode)
+		tm->tm_hour = data[RTC_HOUR] & 0x1f;
+	else {
+		tm->tm_hour = data[RTC_HOUR] & 0x0f;
+		if (data[RTC_HOUR] & HOUR_PM_MASK)
+			tm->tm_hour += 12;
+	}
+
+	/* Only a single bit is set in data[], so fls() would be equivalent */
+	tm->tm_wday = ffs(data[RTC_WEEKDAY] & 0xff) - 1;
+	tm->tm_mday = data[RTC_DATE] & 0x1f;
+	tm->tm_mon = (data[RTC_MONTH] & 0x0f) - 1;
+
+	tm->tm_year = data[RTC_YEAR] & 0xff;
+	tm->tm_yday = 0;
+	tm->tm_isdst = 0;
+}
+
+static int max77802_rtc_tm_to_data(struct rtc_time *tm, u8 *data)
+{
+	data[RTC_SEC] = tm->tm_sec;
+	data[RTC_MIN] = tm->tm_min;
+	data[RTC_HOUR] = tm->tm_hour;
+	data[RTC_WEEKDAY] = 1 << tm->tm_wday;
+	data[RTC_DATE] = tm->tm_mday;
+	data[RTC_MONTH] = tm->tm_mon + 1;
+	data[RTC_YEAR] = tm->tm_year;
+
+	return 0;
+}
+
+static int max77802_rtc_update(struct max77802_rtc_info *info,
+	enum MAX77802_RTC_OP op)
+{
+	int ret;
+	unsigned int data;
+
+	if (op == MAX77802_RTC_WRITE)
+		data = 1 << RTC_UDR_SHIFT;
+	else
+		data = 1 << RTC_RBUDR_SHIFT;
+
+	ret = regmap_update_bits(info->max77802->regmap,
+				 MAX77802_RTC_UPDATE0, data, data);
+	if (ret < 0)
+		dev_err(info->dev, "%s: fail to write update reg(ret=%d, data=0x%x)\n",
+				__func__, ret, data);
+	else {
+		/* Minimum delay required before RTC update. */
+		usleep_range(MAX77802_RTC_UPDATE_DELAY_US,
+			     MAX77802_RTC_UPDATE_DELAY_US * 2);
+	}
+
+	return ret;
+}
+
+static int max77802_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	struct max77802_rtc_info *info = dev_get_drvdata(dev);
+	u8 data[RTC_NR_TIME];
+	int ret;
+
+	mutex_lock(&info->lock);
+
+	ret = max77802_rtc_update(info, MAX77802_RTC_READ);
+	if (ret < 0)
+		goto out;
+
+	ret = regmap_bulk_read(info->max77802->regmap,
+				MAX77802_RTC_SEC, data, RTC_NR_TIME);
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to read time reg(%d)\n", __func__,
+			ret);
+		goto out;
+	}
+
+	max77802_rtc_data_to_tm(data, tm, info->rtc_24hr_mode);
+
+	ret = rtc_valid_tm(tm);
+
+out:
+	mutex_unlock(&info->lock);
+	return ret;
+}
+
+static int max77802_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct max77802_rtc_info *info = dev_get_drvdata(dev);
+	u8 data[RTC_NR_TIME];
+	int ret;
+
+	ret = max77802_rtc_tm_to_data(tm, data);
+	if (ret < 0)
+		return ret;
+
+	mutex_lock(&info->lock);
+
+	ret = regmap_bulk_write(info->max77802->regmap,
+				 MAX77802_RTC_SEC, data, RTC_NR_TIME);
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to write time reg(%d)\n", __func__,
+			ret);
+		goto out;
+	}
+
+	ret = max77802_rtc_update(info, MAX77802_RTC_WRITE);
+
+out:
+	mutex_unlock(&info->lock);
+	return ret;
+}
+
+static int max77802_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct max77802_rtc_info *info = dev_get_drvdata(dev);
+	u8 data[RTC_NR_TIME];
+	unsigned int val;
+	int ret;
+
+	mutex_lock(&info->lock);
+
+	ret = max77802_rtc_update(info, MAX77802_RTC_READ);
+	if (ret < 0)
+		goto out;
+
+	ret = regmap_bulk_read(info->max77802->regmap,
+				 MAX77802_ALARM1_SEC, data, RTC_NR_TIME);
+	if (ret < 0) {
+		dev_err(info->dev, "%s:%d fail to read alarm reg(%d)\n",
+				__func__, __LINE__, ret);
+		goto out;
+	}
+
+	max77802_rtc_data_to_tm(data, &alrm->time, info->rtc_24hr_mode);
+
+	alrm->enabled = 0;
+	ret = regmap_read(info->max77802->regmap,
+			  MAX77802_RTC_AE1, &val);
+	if (ret < 0) {
+		dev_err(info->dev, "%s:%d fail to read alarm enable(%d)\n",
+			__func__, __LINE__, ret);
+		goto out;
+	}
+	if (val)
+		alrm->enabled = 1;
+
+	alrm->pending = 0;
+	ret = regmap_read(info->max77802->regmap, MAX77802_REG_STATUS2, &val);
+	if (ret < 0) {
+		dev_err(info->dev, "%s:%d fail to read status2 reg(%d)\n",
+				__func__, __LINE__, ret);
+		goto out;
+	}
+
+	if (val & (1 << 2)) /* RTCA1 */
+		alrm->pending = 1;
+
+out:
+	mutex_unlock(&info->lock);
+	return 0;
+}
+
+static int max77802_rtc_stop_alarm(struct max77802_rtc_info *info)
+{
+	int ret;
+
+	if (!mutex_is_locked(&info->lock))
+		dev_warn(info->dev, "%s: should have mutex locked\n", __func__);
+
+	ret = max77802_rtc_update(info, MAX77802_RTC_READ);
+	if (ret < 0)
+		goto out;
+
+	ret = regmap_write(info->max77802->regmap,
+			   MAX77802_RTC_AE1, 0);
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to write alarm reg(%d)\n",
+			__func__, ret);
+		goto out;
+	}
+
+	ret = max77802_rtc_update(info, MAX77802_RTC_WRITE);
+out:
+	return ret;
+}
+
+static int max77802_rtc_start_alarm(struct max77802_rtc_info *info)
+{
+	int ret;
+
+	if (!mutex_is_locked(&info->lock))
+		dev_warn(info->dev, "%s: should have mutex locked\n",
+			 __func__);
+
+	ret = max77802_rtc_update(info, MAX77802_RTC_READ);
+	if (ret < 0)
+		goto out;
+
+	ret = regmap_write(info->max77802->regmap,
+				   MAX77802_RTC_AE1,
+				   ALARM_ENABLE_VALUE);
+
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to read alarm reg(%d)\n",
+				__func__, ret);
+		goto out;
+	}
+
+	ret = max77802_rtc_update(info, MAX77802_RTC_WRITE);
+out:
+	return ret;
+}
+
+static int max77802_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct max77802_rtc_info *info = dev_get_drvdata(dev);
+	u8 data[RTC_NR_TIME];
+	int ret;
+
+	ret = max77802_rtc_tm_to_data(&alrm->time, data);
+	if (ret < 0)
+		return ret;
+
+	mutex_lock(&info->lock);
+
+	ret = max77802_rtc_stop_alarm(info);
+	if (ret < 0)
+		goto out;
+
+	ret = regmap_bulk_write(info->max77802->regmap,
+				 MAX77802_ALARM1_SEC, data, RTC_NR_TIME);
+
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to write alarm reg(%d)\n",
+				__func__, ret);
+		goto out;
+	}
+
+	ret = max77802_rtc_update(info, MAX77802_RTC_WRITE);
+	if (ret < 0)
+		goto out;
+
+	if (alrm->enabled)
+		ret = max77802_rtc_start_alarm(info);
+out:
+	mutex_unlock(&info->lock);
+	return ret;
+}
+
+static int max77802_rtc_alarm_irq_enable(struct device *dev,
+					 unsigned int enabled)
+{
+	struct max77802_rtc_info *info = dev_get_drvdata(dev);
+	int ret;
+
+	mutex_lock(&info->lock);
+	if (enabled)
+		ret = max77802_rtc_start_alarm(info);
+	else
+		ret = max77802_rtc_stop_alarm(info);
+	mutex_unlock(&info->lock);
+
+	return ret;
+}
+
+static irqreturn_t max77802_rtc_alarm_irq(int irq, void *data)
+{
+	struct max77802_rtc_info *info = data;
+
+	dev_dbg(info->dev, "%s:irq(%d)\n", __func__, irq);
+
+	rtc_update_irq(info->rtc_dev, 1, RTC_IRQF | RTC_AF);
+
+	return IRQ_HANDLED;
+}
+
+static const struct rtc_class_ops max77802_rtc_ops = {
+	.read_time = max77802_rtc_read_time,
+	.set_time = max77802_rtc_set_time,
+	.read_alarm = max77802_rtc_read_alarm,
+	.set_alarm = max77802_rtc_set_alarm,
+	.alarm_irq_enable = max77802_rtc_alarm_irq_enable,
+};
+
+static int max77802_rtc_init_reg(struct max77802_rtc_info *info)
+{
+	u8 data[2];
+	int ret;
+
+	max77802_rtc_update(info, MAX77802_RTC_READ);
+
+	/* Set RTC control register : Binary mode, 24hour mdoe */
+	data[0] = (1 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
+	data[1] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
+
+	info->rtc_24hr_mode = 1;
+
+	ret = regmap_bulk_write(info->max77802->regmap,
+				MAX77802_RTC_CONTROLM, data, ARRAY_SIZE(data));
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to write controlm reg(%d)\n",
+				__func__, ret);
+		return ret;
+	}
+
+	ret = max77802_rtc_update(info, MAX77802_RTC_WRITE);
+	return ret;
+}
+
+static int max77802_rtc_probe(struct platform_device *pdev)
+{
+	struct max77686_dev *max77802 = dev_get_drvdata(pdev->dev.parent);
+	struct max77802_rtc_info *info;
+	int ret;
+
+	dev_dbg(&pdev->dev, "%s\n", __func__);
+
+	info = devm_kzalloc(&pdev->dev, sizeof(struct max77802_rtc_info),
+			    GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	mutex_init(&info->lock);
+	info->dev = &pdev->dev;
+	info->max77802 = max77802;
+	info->rtc = max77802->i2c;
+
+	platform_set_drvdata(pdev, info);
+
+	ret = max77802_rtc_init_reg(info);
+
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to initialize RTC reg:%d\n", ret);
+		return ret;
+	}
+
+	device_init_wakeup(&pdev->dev, 1);
+
+	info->rtc_dev = devm_rtc_device_register(&pdev->dev, "max77802-rtc",
+						 &max77802_rtc_ops, THIS_MODULE);
+
+	if (IS_ERR(info->rtc_dev)) {
+		ret = PTR_ERR(info->rtc_dev);
+		dev_err(&pdev->dev, "Failed to register RTC device: %d\n", ret);
+		if (ret == 0)
+			ret = -EINVAL;
+		return ret;
+	}
+
+	if (!max77802->rtc_irq_data) {
+		dev_err(&pdev->dev, "No RTC regmap IRQ chip\n");
+		return -EINVAL;
+	}
+
+	info->virq = regmap_irq_get_virq(max77802->rtc_irq_data,
+					 MAX77686_RTCIRQ_RTCA1);
+
+	if (info->virq <= 0) {
+		dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
+			MAX77686_RTCIRQ_RTCA1);
+		return -EINVAL;
+	}
+
+	ret = devm_request_threaded_irq(&pdev->dev, info->virq, NULL,
+					max77802_rtc_alarm_irq, 0, "rtc-alarm1",
+					info);
+	if (ret < 0)
+		dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
+			info->virq, ret);
+
+	return ret;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int max77802_rtc_suspend(struct device *dev)
+{
+	if (device_may_wakeup(dev)) {
+		struct max77802_rtc_info *info = dev_get_drvdata(dev);
+
+		return enable_irq_wake(info->virq);
+	}
+
+	return 0;
+}
+
+static int max77802_rtc_resume(struct device *dev)
+{
+	if (device_may_wakeup(dev)) {
+		struct max77802_rtc_info *info = dev_get_drvdata(dev);
+
+		return disable_irq_wake(info->virq);
+	}
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(max77802_rtc_pm_ops,
+			 max77802_rtc_suspend, max77802_rtc_resume);
+
+static const struct platform_device_id rtc_id[] = {
+	{ "max77802-rtc", 0 },
+	{},
+};
+
+static struct platform_driver max77802_rtc_driver = {
+	.driver		= {
+		.name	= "max77802-rtc",
+		.owner	= THIS_MODULE,
+		.pm	= &max77802_rtc_pm_ops,
+	},
+	.probe		= max77802_rtc_probe,
+	.id_table	= rtc_id,
+};
+
+module_platform_driver(max77802_rtc_driver);
+
+MODULE_DESCRIPTION("Maxim MAX77802 RTC driver");
+MODULE_AUTHOR("Simon Glass <sjg@chromium.org>");
+MODULE_LICENSE("GPL");

drivers/rtc/rtc-mpc5121.c

@@ -401,7 +401,7 @@ static int mpc5121_rtc_remove(struct platform_device *op)
 }
 
 #ifdef CONFIG_OF
-static struct of_device_id mpc5121_rtc_match[] = {
+static const struct of_device_id mpc5121_rtc_match[] = {
 	{ .compatible = "fsl,mpc5121-rtc", },
 	{ .compatible = "fsl,mpc5200-rtc", },
 	{},

drivers/rtc/rtc-pcf8563.c

@@ -167,8 +167,8 @@ static irqreturn_t pcf8563_irq(int irq, void *dev_id)
 	char pending;
 
 	err = pcf8563_get_alarm_mode(pcf8563->client, NULL, &pending);
-	if (err < 0)
-		return err;
+	if (err)
+		return IRQ_NONE;
 
 	if (pending) {
 		rtc_update_irq(pcf8563->rtc, 1, RTC_IRQF | RTC_AF);

drivers/rtc/rtc-pcf8583.c

@@ -176,7 +176,11 @@ static int pcf8583_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	unsigned char ctrl, year[2];
-	struct rtc_mem mem = { CMOS_YEAR, sizeof(year), year };
+	struct rtc_mem mem = {
+		.loc = CMOS_YEAR,
+		.nr = sizeof(year),
+		.data = year
+	};
 	int real_year, year_offset, err;
 
 	/*
@@ -222,8 +226,16 @@ static int pcf8583_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	unsigned char year[2], chk;
-	struct rtc_mem cmos_year  = { CMOS_YEAR, sizeof(year), year };
-	struct rtc_mem cmos_check = { CMOS_CHECKSUM, 1, &chk };
+	struct rtc_mem cmos_year  = {
+		.loc = CMOS_YEAR,
+		.nr = sizeof(year),
+		.data = year
+	};
+	struct rtc_mem cmos_check = {
+		.loc = CMOS_CHECKSUM,
+		.nr = 1,
+		.data = &chk
+	};
 	unsigned int proper_year = tm->tm_year + 1900;
 	int ret;
 

drivers/rtc/rtc-rk808.c

+/*
+ * RTC driver for Rockchip RK808
+ *
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * Author: Chris Zhong <zyw@rock-chips.com>
+ * Author: Zhang Qing <zhangqing@rock-chips.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+#include <linux/mfd/rk808.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+
+/* RTC_CTRL_REG bitfields */
+#define BIT_RTC_CTRL_REG_STOP_RTC_M		BIT(0)
+
+/* RK808 has a shadowed register for saving a "frozen" RTC time.
+ * When user setting "GET_TIME" to 1, the time will save in this shadowed
+ * register. If set "READSEL" to 1, user read rtc time register, actually
+ * get the time of that moment. If we need the real time, clr this bit.
+ */
+#define BIT_RTC_CTRL_REG_RTC_GET_TIME		BIT(6)
+#define BIT_RTC_CTRL_REG_RTC_READSEL_M		BIT(7)
+#define BIT_RTC_INTERRUPTS_REG_IT_ALARM_M	BIT(3)
+#define RTC_STATUS_MASK		0xFE
+
+#define SECONDS_REG_MSK		0x7F
+#define MINUTES_REG_MAK		0x7F
+#define HOURS_REG_MSK		0x3F
+#define DAYS_REG_MSK		0x3F
+#define MONTHS_REG_MSK		0x1F
+#define YEARS_REG_MSK		0xFF
+#define WEEKS_REG_MSK		0x7
+
+/* REG_SECONDS_REG through REG_YEARS_REG is how many registers? */
+
+#define NUM_TIME_REGS	(RK808_WEEKS_REG - RK808_SECONDS_REG + 1)
+#define NUM_ALARM_REGS	(RK808_ALARM_YEARS_REG - RK808_ALARM_SECONDS_REG + 1)
+
+struct rk808_rtc {
+	struct rk808 *rk808;
+	struct rtc_device *rtc;
+	int irq;
+};
+
+/* Read current time and date in RTC */
+static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
+{
+	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
+	struct rk808 *rk808 = rk808_rtc->rk808;
+	u8 rtc_data[NUM_TIME_REGS];
+	int ret;
+
+	/* Force an update of the shadowed registers right now */
+	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
+				 BIT_RTC_CTRL_REG_RTC_GET_TIME,
+				 0);
+	if (ret) {
+		dev_err(dev, "Failed to update bits rtc_ctrl: %d\n", ret);
+		return ret;
+	}
+
+	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
+				 BIT_RTC_CTRL_REG_RTC_GET_TIME,
+				 BIT_RTC_CTRL_REG_RTC_GET_TIME);
+	if (ret) {
+		dev_err(dev, "Failed to update bits rtc_ctrl: %d\n", ret);
+		return ret;
+	}
+
+	ret = regmap_bulk_read(rk808->regmap, RK808_SECONDS_REG,
+			       rtc_data, NUM_TIME_REGS);
+	if (ret) {
+		dev_err(dev, "Failed to bulk read rtc_data: %d\n", ret);
+		return ret;
+	}
+
+	tm->tm_sec = bcd2bin(rtc_data[0] & SECONDS_REG_MSK);
+	tm->tm_min = bcd2bin(rtc_data[1] & MINUTES_REG_MAK);
+	tm->tm_hour = bcd2bin(rtc_data[2] & HOURS_REG_MSK);
+	tm->tm_mday = bcd2bin(rtc_data[3] & DAYS_REG_MSK);
+	tm->tm_mon = (bcd2bin(rtc_data[4] & MONTHS_REG_MSK)) - 1;
+	tm->tm_year = (bcd2bin(rtc_data[5] & YEARS_REG_MSK)) + 100;
+	tm->tm_wday = bcd2bin(rtc_data[6] & WEEKS_REG_MSK);
+	dev_dbg(dev, "RTC date/time %4d-%02d-%02d(%d) %02d:%02d:%02d\n",
+		1900 + tm->tm_year, tm->tm_mon + 1, tm->tm_mday,
+		tm->tm_wday, tm->tm_hour , tm->tm_min, tm->tm_sec);
+
+	return ret;
+}
+
+/* Set current time and date in RTC */
+static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
+	struct rk808 *rk808 = rk808_rtc->rk808;
+	u8 rtc_data[NUM_TIME_REGS];
+	int ret;
+
+	rtc_data[0] = bin2bcd(tm->tm_sec);
+	rtc_data[1] = bin2bcd(tm->tm_min);
+	rtc_data[2] = bin2bcd(tm->tm_hour);
+	rtc_data[3] = bin2bcd(tm->tm_mday);
+	rtc_data[4] = bin2bcd(tm->tm_mon + 1);
+	rtc_data[5] = bin2bcd(tm->tm_year - 100);
+	rtc_data[6] = bin2bcd(tm->tm_wday);
+	dev_dbg(dev, "set RTC date/time %4d-%02d-%02d(%d) %02d:%02d:%02d\n",
+		1900 + tm->tm_year, tm->tm_mon + 1, tm->tm_mday,
+		tm->tm_wday, tm->tm_hour , tm->tm_min, tm->tm_sec);
+
+	/* Stop RTC while updating the RTC registers */
+	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
+				 BIT_RTC_CTRL_REG_STOP_RTC_M,
+				 BIT_RTC_CTRL_REG_STOP_RTC_M);
+	if (ret) {
+		dev_err(dev, "Failed to update RTC control: %d\n", ret);
+		return ret;
+	}
+
+	ret = regmap_bulk_write(rk808->regmap, RK808_SECONDS_REG,
+				rtc_data, NUM_TIME_REGS);
+	if (ret) {
+		dev_err(dev, "Failed to bull write rtc_data: %d\n", ret);
+		return ret;
+	}
+	/* Start RTC again */
+	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
+				 BIT_RTC_CTRL_REG_STOP_RTC_M, 0);
+	if (ret) {
+		dev_err(dev, "Failed to update RTC control: %d\n", ret);
+		return ret;
+	}
+	return 0;
+}
+
+/* Read alarm time and date in RTC */
+static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
+	struct rk808 *rk808 = rk808_rtc->rk808;
+	u8 alrm_data[NUM_ALARM_REGS];
+	uint32_t int_reg;
+	int ret;
+
+	ret = regmap_bulk_read(rk808->regmap, RK808_ALARM_SECONDS_REG,
+			       alrm_data, NUM_ALARM_REGS);
+
+	alrm->time.tm_sec = bcd2bin(alrm_data[0] & SECONDS_REG_MSK);
+	alrm->time.tm_min = bcd2bin(alrm_data[1] & MINUTES_REG_MAK);
+	alrm->time.tm_hour = bcd2bin(alrm_data[2] & HOURS_REG_MSK);
+	alrm->time.tm_mday = bcd2bin(alrm_data[3] & DAYS_REG_MSK);
+	alrm->time.tm_mon = (bcd2bin(alrm_data[4] & MONTHS_REG_MSK)) - 1;
+	alrm->time.tm_year = (bcd2bin(alrm_data[5] & YEARS_REG_MSK)) + 100;
+
+	ret = regmap_read(rk808->regmap, RK808_RTC_INT_REG, &int_reg);
+	if (ret) {
+		dev_err(dev, "Failed to read RTC INT REG: %d\n", ret);
+		return ret;
+	}
+
+	dev_dbg(dev, "alrm read RTC date/time %4d-%02d-%02d(%d) %02d:%02d:%02d\n",
+		1900 + alrm->time.tm_year, alrm->time.tm_mon + 1,
+		alrm->time.tm_mday, alrm->time.tm_wday, alrm->time.tm_hour,
+		alrm->time.tm_min, alrm->time.tm_sec);
+
+	alrm->enabled = (int_reg & BIT_RTC_INTERRUPTS_REG_IT_ALARM_M) ? 1 : 0;
+
+	return 0;
+}
+
+static int rk808_rtc_stop_alarm(struct rk808_rtc *rk808_rtc)
+{
+	struct rk808 *rk808 = rk808_rtc->rk808;
+	int ret;
+
+	ret = regmap_update_bits(rk808->regmap, RK808_RTC_INT_REG,
+				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M, 0);
+
+	return ret;
+}
+
+static int rk808_rtc_start_alarm(struct rk808_rtc *rk808_rtc)
+{
+	struct rk808 *rk808 = rk808_rtc->rk808;
+	int ret;
+
+	ret = regmap_update_bits(rk808->regmap, RK808_RTC_INT_REG,
+				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M,
+				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M);
+
+	return ret;
+}
+
+static int rk808_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
+	struct rk808 *rk808 = rk808_rtc->rk808;
+	u8 alrm_data[NUM_ALARM_REGS];
+	int ret;
+
+	ret = rk808_rtc_stop_alarm(rk808_rtc);
+	if (ret) {
+		dev_err(dev, "Failed to stop alarm: %d\n", ret);
+		return ret;
+	}
+	dev_dbg(dev, "alrm set RTC date/time %4d-%02d-%02d(%d) %02d:%02d:%02d\n",
+		1900 + alrm->time.tm_year, alrm->time.tm_mon + 1,
+		alrm->time.tm_mday, alrm->time.tm_wday, alrm->time.tm_hour,
+		alrm->time.tm_min, alrm->time.tm_sec);
+
+	alrm_data[0] = bin2bcd(alrm->time.tm_sec);
+	alrm_data[1] = bin2bcd(alrm->time.tm_min);
+	alrm_data[2] = bin2bcd(alrm->time.tm_hour);
+	alrm_data[3] = bin2bcd(alrm->time.tm_mday);
+	alrm_data[4] = bin2bcd(alrm->time.tm_mon + 1);
+	alrm_data[5] = bin2bcd(alrm->time.tm_year - 100);
+
+	ret = regmap_bulk_write(rk808->regmap, RK808_ALARM_SECONDS_REG,
+				alrm_data, NUM_ALARM_REGS);
+	if (ret) {
+		dev_err(dev, "Failed to bulk write: %d\n", ret);
+		return ret;
+	}
+	if (alrm->enabled) {
+		ret = rk808_rtc_start_alarm(rk808_rtc);
+		if (ret) {
+			dev_err(dev, "Failed to start alarm: %d\n", ret);
+			return ret;
+		}
+	}
+	return 0;
+}
+
+static int rk808_rtc_alarm_irq_enable(struct device *dev,
+				      unsigned int enabled)
+{
+	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
+
+	if (enabled)
+		return rk808_rtc_start_alarm(rk808_rtc);
+
+	return rk808_rtc_stop_alarm(rk808_rtc);
+}
+
+/*
+ * We will just handle setting the frequency and make use the framework for
+ * reading the periodic interupts.
+ *
+ * @freq: Current periodic IRQ freq:
+ * bit 0: every second
+ * bit 1: every minute
+ * bit 2: every hour
+ * bit 3: every day
+ */
+static irqreturn_t rk808_alarm_irq(int irq, void *data)
+{
+	struct rk808_rtc *rk808_rtc = data;
+	struct rk808 *rk808 = rk808_rtc->rk808;
+	struct i2c_client *client = rk808->i2c;
+	int ret;
+
+	ret = regmap_write(rk808->regmap, RK808_RTC_STATUS_REG,
+			   RTC_STATUS_MASK);
+	if (ret) {
+		dev_err(&client->dev,
+			"%s:Failed to update RTC status: %d\n", __func__, ret);
+		return ret;
+	}
+
+	rtc_update_irq(rk808_rtc->rtc, 1, RTC_IRQF | RTC_AF);
+	dev_dbg(&client->dev,
+		 "%s:irq=%d\n", __func__, irq);
+	return IRQ_HANDLED;
+}
+
+static const struct rtc_class_ops rk808_rtc_ops = {
+	.read_time = rk808_rtc_readtime,
+	.set_time = rk808_rtc_set_time,
+	.read_alarm = rk808_rtc_readalarm,
+	.set_alarm = rk808_rtc_setalarm,
+	.alarm_irq_enable = rk808_rtc_alarm_irq_enable,
+};
+
+#ifdef CONFIG_PM_SLEEP
+/* Turn off the alarm if it should not be a wake source. */
+static int rk808_rtc_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct rk808_rtc *rk808_rtc = dev_get_drvdata(&pdev->dev);
+
+	if (device_may_wakeup(dev))
+		enable_irq_wake(rk808_rtc->irq);
+
+	return 0;
+}
+
+/* Enable the alarm if it should be enabled (in case it was disabled to
+ * prevent use as a wake source).
+ */
+static int rk808_rtc_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct rk808_rtc *rk808_rtc = dev_get_drvdata(&pdev->dev);
+
+	if (device_may_wakeup(dev))
+		disable_irq_wake(rk808_rtc->irq);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(rk808_rtc_pm_ops,
+	rk808_rtc_suspend, rk808_rtc_resume);
+
+static int rk808_rtc_probe(struct platform_device *pdev)
+{
+	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
+	struct rk808_rtc *rk808_rtc;
+	struct rtc_time tm;
+	int ret;
+
+	rk808_rtc = devm_kzalloc(&pdev->dev, sizeof(*rk808_rtc), GFP_KERNEL);
+	if (rk808_rtc == NULL)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, rk808_rtc);
+	rk808_rtc->rk808 = rk808;
+
+	/* start rtc running by default, and use shadowed timer. */
+	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
+				 BIT_RTC_CTRL_REG_STOP_RTC_M |
+				 BIT_RTC_CTRL_REG_RTC_READSEL_M,
+				 BIT_RTC_CTRL_REG_RTC_READSEL_M);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"Failed to update RTC control: %d\n", ret);
+		return ret;
+	}
+
+	ret = regmap_write(rk808->regmap, RK808_RTC_STATUS_REG,
+			   RTC_STATUS_MASK);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"Failed to write RTC status: %d\n", ret);
+			return ret;
+	}
+
+	/* set init time */
+	ret = rk808_rtc_readtime(&pdev->dev, &tm);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to read RTC time\n");
+		return ret;
+	}
+	ret = rtc_valid_tm(&tm);
+	if (ret)
+		dev_warn(&pdev->dev, "invalid date/time\n");
+
+	device_init_wakeup(&pdev->dev, 1);
+
+	rk808_rtc->rtc = devm_rtc_device_register(&pdev->dev, "rk808-rtc",
+						  &rk808_rtc_ops, THIS_MODULE);
+	if (IS_ERR(rk808_rtc->rtc)) {
+		ret = PTR_ERR(rk808_rtc->rtc);
+		return ret;
+	}
+
+	rk808_rtc->irq = platform_get_irq(pdev, 0);
+	if (rk808_rtc->irq < 0) {
+		if (rk808_rtc->irq != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Wake up is not possible as irq = %d\n",
+				rk808_rtc->irq);
+		return rk808_rtc->irq;
+	}
+
+	/* request alarm irq of rk808 */
+	ret = devm_request_threaded_irq(&pdev->dev, rk808_rtc->irq, NULL,
+					rk808_alarm_irq, 0,
+					"RTC alarm", rk808_rtc);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to request alarm IRQ %d: %d\n",
+			rk808_rtc->irq, ret);
+	}
+
+	return ret;
+}
+
+static struct platform_driver rk808_rtc_driver = {
+	.probe = rk808_rtc_probe,
+	.driver = {
+		.name = "rk808-rtc",
+		.pm = &rk808_rtc_pm_ops,
+	},
+};
+
+module_platform_driver(rk808_rtc_driver);
+
+MODULE_DESCRIPTION("RTC driver for the rk808 series PMICs");
+MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
+MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:rk808-rtc");

drivers/rtc/rtc-rs5c372.c

@@ -142,12 +142,11 @@ static int rs5c_get_regs(struct rs5c372 *rs5c)
 	}
 
 	dev_dbg(&client->dev,
-		"%02x %02x %02x (%02x) %02x %02x %02x (%02x), "
-		"%02x %02x %02x, %02x %02x %02x; %02x %02x\n",
-		rs5c->regs[0],  rs5c->regs[1],  rs5c->regs[2],  rs5c->regs[3],
-		rs5c->regs[4],  rs5c->regs[5],  rs5c->regs[6],  rs5c->regs[7],
-		rs5c->regs[8],  rs5c->regs[9],  rs5c->regs[10], rs5c->regs[11],
-		rs5c->regs[12], rs5c->regs[13], rs5c->regs[14], rs5c->regs[15]);
+		"%3ph (%02x) %3ph (%02x), %3ph, %3ph; %02x %02x\n",
+		rs5c->regs + 0, rs5c->regs[3],
+		rs5c->regs + 4, rs5c->regs[7],
+		rs5c->regs + 8, rs5c->regs + 11,
+		rs5c->regs[14], rs5c->regs[15]);
 
 	return 0;
 }

drivers/s390/cio/chp.c

@@ -257,11 +257,11 @@ static ssize_t chp_status_write(struct device *dev,
 	if (!num_args)
 		return count;
 
-	if (!strnicmp(cmd, "on", 2) || !strcmp(cmd, "1")) {
+	if (!strncasecmp(cmd, "on", 2) || !strcmp(cmd, "1")) {
 		mutex_lock(&cp->lock);
 		error = s390_vary_chpid(cp->chpid, 1);
 		mutex_unlock(&cp->lock);
-	} else if (!strnicmp(cmd, "off", 3) || !strcmp(cmd, "0")) {
+	} else if (!strncasecmp(cmd, "off", 3) || !strcmp(cmd, "0")) {
 		mutex_lock(&cp->lock);
 		error = s390_vary_chpid(cp->chpid, 0);
 		mutex_unlock(&cp->lock);

drivers/scsi/ips.c

@@ -528,7 +528,7 @@ ips_setup(char *ips_str)
 		 * Update the variables
 		 */
 		for (i = 0; i < ARRAY_SIZE(options); i++) {
-			if (strnicmp
+			if (strncasecmp
 			    (key, options[i].option_name,
 			     strlen(options[i].option_name)) == 0) {
 				if (value)

drivers/scsi/scsi_debug.c

@@ -3371,7 +3371,7 @@ static ssize_t opts_store(struct device_driver *ddp, const char *buf,
 	char work[20];
 
         if (1 == sscanf(buf, "%10s", work)) {
-		if (0 == strnicmp(work,"0x", 2)) {
+		if (0 == strncasecmp(work,"0x", 2)) {
 			if (1 == sscanf(&work[2], "%x", &opts))
 				goto opts_done;
 		} else {

drivers/staging/rtl8188eu/os_dep/rtw_android.c

@@ -79,7 +79,7 @@ int rtw_android_cmdstr_to_num(char *cmdstr)
 {
 	int cmd_num;
 	for (cmd_num = 0; cmd_num < ANDROID_WIFI_CMD_MAX; cmd_num++)
-		if (0 == strnicmp(cmdstr , android_wifi_cmd_str[cmd_num],
+		if (0 == strncasecmp(cmdstr , android_wifi_cmd_str[cmd_num],
 				  strlen(android_wifi_cmd_str[cmd_num])))
 			break;
 	return cmd_num;

drivers/staging/rtl8192e/rtllib.h

@@ -2957,25 +2957,13 @@ extern inline int rtllib_get_scans(struct rtllib_device *ieee)
 static inline const char *escape_essid(const char *essid, u8 essid_len)
 {
 	static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
-	const char *s = essid;
-	char *d = escaped;
 
 	if (rtllib_is_empty_essid(essid, essid_len)) {
 		memcpy(escaped, "<hidden>", sizeof("<hidden>"));
 		return escaped;
 	}
 
-	essid_len = min(essid_len, (u8)IW_ESSID_MAX_SIZE);
-	while (essid_len--) {
-		if (*s == '\0') {
-			*d++ = '\\';
-			*d++ = '0';
-			s++;
-		} else {
-			*d++ = *s++;
-		}
-	}
-	*d = '\0';
+	snprintf(escaped, sizeof(escaped), "%*pEn", essid_len, essid);
 	return escaped;
 }
 

drivers/staging/rtl8192u/ieee80211/ieee80211.h

@@ -2593,25 +2593,13 @@ static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
 
 static inline const char *escape_essid(const char *essid, u8 essid_len) {
 	static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
-	const char *s = essid;
-	char *d = escaped;
 
 	if (ieee80211_is_empty_essid(essid, essid_len)) {
 		memcpy(escaped, "<hidden>", sizeof("<hidden>"));
 		return escaped;
 	}
 
-	essid_len = min(essid_len, (u8)IW_ESSID_MAX_SIZE);
-	while (essid_len--) {
-		if (*s == '\0') {
-			*d++ = '\\';
-			*d++ = '0';
-			s++;
-		} else {
-			*d++ = *s++;
-		}
-	}
-	*d = '\0';
+	snprintf(escaped, sizeof(escaped), "%*pEn", essid_len, essid);
 	return escaped;
 }
 

drivers/staging/wlan-ng/prism2sta.c

@@ -60,7 +60,6 @@
 #include <linux/netdevice.h>
 #include <linux/workqueue.h>
 #include <linux/byteorder/generic.h>
-#include <linux/ctype.h>
 
 #include <linux/io.h>
 #include <linux/delay.h>
@@ -81,27 +80,6 @@
 #include "hfa384x.h"
 #include "prism2mgmt.h"
 
-/* Create a string of printable chars from something that might not be */
-/* It's recommended that the str be 4*len + 1 bytes long */
-#define wlan_mkprintstr(buf, buflen, str, strlen) \
-{ \
-	int i = 0; \
-	int j = 0; \
-	memset(str, 0, (strlen)); \
-	for (i = 0; i < (buflen); i++) { \
-		if (isprint((buf)[i])) { \
-			(str)[j] = (buf)[i]; \
-			j++; \
-		} else { \
-			(str)[j] = '\\'; \
-			(str)[j+1] = 'x'; \
-			(str)[j+2] = hex_asc_hi((buf)[i]); \
-			(str)[j+3] = hex_asc_lo((buf)[i]); \
-			j += 4; \
-		} \
-	} \
-}
-
 static char *dev_info = "prism2_usb";
 static wlandevice_t *create_wlan(void);
 
@@ -607,7 +585,6 @@ static int prism2sta_getcardinfo(wlandevice_t *wlandev)
 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
 	u16 temp;
 	u8 snum[HFA384x_RID_NICSERIALNUMBER_LEN];
-	char pstr[(HFA384x_RID_NICSERIALNUMBER_LEN * 4) + 1];
 
 	/* Collect version and compatibility info */
 	/*  Some are critical, some are not */
@@ -862,9 +839,8 @@ static int prism2sta_getcardinfo(wlandevice_t *wlandev)
 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICSERIALNUMBER,
 					snum, HFA384x_RID_NICSERIALNUMBER_LEN);
 	if (!result) {
-		wlan_mkprintstr(snum, HFA384x_RID_NICSERIALNUMBER_LEN,
-				pstr, sizeof(pstr));
-		netdev_info(wlandev->netdev, "Prism2 card SN: %s\n", pstr);
+		netdev_info(wlandev->netdev, "Prism2 card SN: %*pEhp\n",
+			    HFA384x_RID_NICSERIALNUMBER_LEN, snum);
 	} else {
 		netdev_err(wlandev->netdev, "Failed to retrieve Prism2 Card SN\n");
 		goto failed;

drivers/thermal/thermal_core.c

@@ -66,7 +66,7 @@ static struct thermal_governor *__find_governor(const char *name)
 		return def_governor;
 
 	list_for_each_entry(pos, &thermal_governor_list, governor_list)
-		if (!strnicmp(name, pos->name, THERMAL_NAME_LENGTH))
+		if (!strncasecmp(name, pos->name, THERMAL_NAME_LENGTH))
 			return pos;
 
 	return NULL;
@@ -104,7 +104,7 @@ int thermal_register_governor(struct thermal_governor *governor)
 
 		name = pos->tzp->governor_name;
 
-		if (!strnicmp(name, governor->name, THERMAL_NAME_LENGTH))
+		if (!strncasecmp(name, governor->name, THERMAL_NAME_LENGTH))
 			pos->governor = governor;
 	}
 
@@ -129,7 +129,7 @@ void thermal_unregister_governor(struct thermal_governor *governor)
 	mutex_lock(&thermal_list_lock);
 
 	list_for_each_entry(pos, &thermal_tz_list, node) {
-		if (!strnicmp(pos->governor->name, governor->name,
+		if (!strncasecmp(pos->governor->name, governor->name,
 						THERMAL_NAME_LENGTH))
 			pos->governor = NULL;
 	}
@@ -1665,7 +1665,7 @@ struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name)
 
 	mutex_lock(&thermal_list_lock);
 	list_for_each_entry(pos, &thermal_tz_list, node)
-		if (!strnicmp(name, pos->type, THERMAL_NAME_LENGTH)) {
+		if (!strncasecmp(name, pos->type, THERMAL_NAME_LENGTH)) {
 			found++;
 			ref = pos;
 		}

drivers/video/fbdev/pvr2fb.c

@@ -1001,7 +1001,7 @@ static int pvr2_get_param(const struct pvr2_params *p, const char *s, int val,
 
 	for (i = 0 ; i < size ; i++ ) {
 		if (s != NULL) {
-			if (!strnicmp(p[i].name, s, strlen(s)))
+			if (!strncasecmp(p[i].name, s, strlen(s)))
 				return p[i].val;
 		} else {
 			if (p[i].val == val)

drivers/video/fbdev/s3c2410fb.c

@@ -601,12 +601,12 @@ static int s3c2410fb_debug_store(struct device *dev,
 	if (len < 1)
 		return -EINVAL;
 
-	if (strnicmp(buf, "on", 2) == 0 ||
-	    strnicmp(buf, "1", 1) == 0) {
+	if (strncasecmp(buf, "on", 2) == 0 ||
+	    strncasecmp(buf, "1", 1) == 0) {
 		debug = 1;
 		dev_dbg(dev, "s3c2410fb: Debug On");
-	} else if (strnicmp(buf, "off", 3) == 0 ||
-		   strnicmp(buf, "0", 1) == 0) {
+	} else if (strncasecmp(buf, "off", 3) == 0 ||
+		   strncasecmp(buf, "0", 1) == 0) {
 		debug = 0;
 		dev_dbg(dev, "s3c2410fb: Debug Off");
 	} else {

drivers/video/fbdev/sis/sis_main.c

@@ -162,7 +162,7 @@ static void sisfb_search_mode(char *name, bool quiet)
 		return;
 	}
 
-	if(!strnicmp(name, sisbios_mode[MODE_INDEX_NONE].name, strlen(name))) {
+	if(!strncasecmp(name, sisbios_mode[MODE_INDEX_NONE].name, strlen(name))) {
 		if(!quiet)
 			printk(KERN_ERR "sisfb: Mode 'none' not supported anymore. Using default.\n");
 
@@ -201,7 +201,7 @@ static void sisfb_search_mode(char *name, bool quiet)
 
 	i = 0; j = 0;
 	while(sisbios_mode[i].mode_no[0] != 0) {
-		if(!strnicmp(nameptr, sisbios_mode[i++].name, strlen(nameptr))) {
+		if(!strncasecmp(nameptr, sisbios_mode[i++].name, strlen(nameptr))) {
 			if(sisfb_fstn) {
 				if(sisbios_mode[i-1].mode_no[1] == 0x50 ||
 				   sisbios_mode[i-1].mode_no[1] == 0x56 ||
@@ -262,7 +262,7 @@ sisfb_search_crt2type(const char *name)
 	if(name == NULL) return;
 
 	while(sis_crt2type[i].type_no != -1) {
-		if(!strnicmp(name, sis_crt2type[i].name, strlen(sis_crt2type[i].name))) {
+		if(!strncasecmp(name, sis_crt2type[i].name, strlen(sis_crt2type[i].name))) {
 			sisfb_crt2type = sis_crt2type[i].type_no;
 			sisfb_tvplug = sis_crt2type[i].tvplug_no;
 			sisfb_crt2flags = sis_crt2type[i].flags;
@@ -289,7 +289,7 @@ sisfb_search_tvstd(const char *name)
 		return;
 
 	while(sis_tvtype[i].type_no != -1) {
-		if(!strnicmp(name, sis_tvtype[i].name, strlen(sis_tvtype[i].name))) {
+		if(!strncasecmp(name, sis_tvtype[i].name, strlen(sis_tvtype[i].name))) {
 			sisfb_tvstd = sis_tvtype[i].type_no;
 			break;
 		}
@@ -308,12 +308,12 @@ sisfb_search_specialtiming(const char *name)
 	if(name == NULL)
 		return;
 
-	if(!strnicmp(name, "none", 4)) {
+	if(!strncasecmp(name, "none", 4)) {
 		sisfb_specialtiming = CUT_FORCENONE;
 		printk(KERN_DEBUG "sisfb: Special timing disabled\n");
 	} else {
 		while(mycustomttable[i].chipID != 0) {
-			if(!strnicmp(name,mycustomttable[i].optionName,
+			if(!strncasecmp(name,mycustomttable[i].optionName,
 			   strlen(mycustomttable[i].optionName))) {
 				sisfb_specialtiming = mycustomttable[i].SpecialID;
 				found = true;
@@ -3952,68 +3952,68 @@ static int __init sisfb_setup(char *options)
 
 		if(!(*this_opt)) continue;
 
-		if(!strnicmp(this_opt, "off", 3)) {
+		if(!strncasecmp(this_opt, "off", 3)) {
 			sisfb_off = 1;
-		} else if(!strnicmp(this_opt, "forcecrt2type:", 14)) {
+		} else if(!strncasecmp(this_opt, "forcecrt2type:", 14)) {
 			/* Need to check crt2 type first for fstn/dstn */
 			sisfb_search_crt2type(this_opt + 14);
-		} else if(!strnicmp(this_opt, "tvmode:",7)) {
+		} else if(!strncasecmp(this_opt, "tvmode:",7)) {
 			sisfb_search_tvstd(this_opt + 7);
-		} else if(!strnicmp(this_opt, "tvstandard:",11)) {
+		} else if(!strncasecmp(this_opt, "tvstandard:",11)) {
 			sisfb_search_tvstd(this_opt + 11);
-		} else if(!strnicmp(this_opt, "mode:", 5)) {
+		} else if(!strncasecmp(this_opt, "mode:", 5)) {
 			sisfb_search_mode(this_opt + 5, false);
-		} else if(!strnicmp(this_opt, "vesa:", 5)) {
+		} else if(!strncasecmp(this_opt, "vesa:", 5)) {
 			sisfb_search_vesamode(simple_strtoul(this_opt + 5, NULL, 0), false);
-		} else if(!strnicmp(this_opt, "rate:", 5)) {
+		} else if(!strncasecmp(this_opt, "rate:", 5)) {
 			sisfb_parm_rate = simple_strtoul(this_opt + 5, NULL, 0);
-		} else if(!strnicmp(this_opt, "forcecrt1:", 10)) {
+		} else if(!strncasecmp(this_opt, "forcecrt1:", 10)) {
 			sisfb_forcecrt1 = (int)simple_strtoul(this_opt + 10, NULL, 0);
-		} else if(!strnicmp(this_opt, "mem:",4)) {
+		} else if(!strncasecmp(this_opt, "mem:",4)) {
 			sisfb_parm_mem = simple_strtoul(this_opt + 4, NULL, 0);
-		} else if(!strnicmp(this_opt, "pdc:", 4)) {
+		} else if(!strncasecmp(this_opt, "pdc:", 4)) {
 			sisfb_pdc = simple_strtoul(this_opt + 4, NULL, 0);
-		} else if(!strnicmp(this_opt, "pdc1:", 5)) {
+		} else if(!strncasecmp(this_opt, "pdc1:", 5)) {
 			sisfb_pdca = simple_strtoul(this_opt + 5, NULL, 0);
-		} else if(!strnicmp(this_opt, "noaccel", 7)) {
+		} else if(!strncasecmp(this_opt, "noaccel", 7)) {
 			sisfb_accel = 0;
-		} else if(!strnicmp(this_opt, "accel", 5)) {
+		} else if(!strncasecmp(this_opt, "accel", 5)) {
 			sisfb_accel = -1;
-		} else if(!strnicmp(this_opt, "noypan", 6)) {
+		} else if(!strncasecmp(this_opt, "noypan", 6)) {
 			sisfb_ypan = 0;
-		} else if(!strnicmp(this_opt, "ypan", 4)) {
+		} else if(!strncasecmp(this_opt, "ypan", 4)) {
 			sisfb_ypan = -1;
-		} else if(!strnicmp(this_opt, "nomax", 5)) {
+		} else if(!strncasecmp(this_opt, "nomax", 5)) {
 			sisfb_max = 0;
-		} else if(!strnicmp(this_opt, "max", 3)) {
+		} else if(!strncasecmp(this_opt, "max", 3)) {
 			sisfb_max = -1;
-		} else if(!strnicmp(this_opt, "userom:", 7)) {
+		} else if(!strncasecmp(this_opt, "userom:", 7)) {
 			sisfb_userom = (int)simple_strtoul(this_opt + 7, NULL, 0);
-		} else if(!strnicmp(this_opt, "useoem:", 7)) {
+		} else if(!strncasecmp(this_opt, "useoem:", 7)) {
 			sisfb_useoem = (int)simple_strtoul(this_opt + 7, NULL, 0);
-		} else if(!strnicmp(this_opt, "nocrt2rate", 10)) {
+		} else if(!strncasecmp(this_opt, "nocrt2rate", 10)) {
 			sisfb_nocrt2rate = 1;
-		} else if(!strnicmp(this_opt, "scalelcd:", 9)) {
+		} else if(!strncasecmp(this_opt, "scalelcd:", 9)) {
 			unsigned long temp = 2;
 			temp = simple_strtoul(this_opt + 9, NULL, 0);
 			if((temp == 0) || (temp == 1)) {
 			   sisfb_scalelcd = temp ^ 1;
 			}
-		} else if(!strnicmp(this_opt, "tvxposoffset:", 13)) {
+		} else if(!strncasecmp(this_opt, "tvxposoffset:", 13)) {
 			int temp = 0;
 			temp = (int)simple_strtol(this_opt + 13, NULL, 0);
 			if((temp >= -32) && (temp <= 32)) {
 			   sisfb_tvxposoffset = temp;
 			}
-		} else if(!strnicmp(this_opt, "tvyposoffset:", 13)) {
+		} else if(!strncasecmp(this_opt, "tvyposoffset:", 13)) {
 			int temp = 0;
 			temp = (int)simple_strtol(this_opt + 13, NULL, 0);
 			if((temp >= -32) && (temp <= 32)) {
 			   sisfb_tvyposoffset = temp;
 			}
-		} else if(!strnicmp(this_opt, "specialtiming:", 14)) {
+		} else if(!strncasecmp(this_opt, "specialtiming:", 14)) {
 			sisfb_search_specialtiming(this_opt + 14);
-		} else if(!strnicmp(this_opt, "lvdshl:", 7)) {
+		} else if(!strncasecmp(this_opt, "lvdshl:", 7)) {
 			int temp = 4;
 			temp = simple_strtoul(this_opt + 7, NULL, 0);
 			if((temp >= 0) && (temp <= 3)) {
@@ -4022,9 +4022,9 @@ static int __init sisfb_setup(char *options)
 		} else if(this_opt[0] >= '0' && this_opt[0] <= '9') {
 			sisfb_search_mode(this_opt, true);
 #if !defined(__i386__) && !defined(__x86_64__)
-		} else if(!strnicmp(this_opt, "resetcard", 9)) {
+		} else if(!strncasecmp(this_opt, "resetcard", 9)) {
 			sisfb_resetcard = 1;
-	        } else if(!strnicmp(this_opt, "videoram:", 9)) {
+	        } else if(!strncasecmp(this_opt, "videoram:", 9)) {
 			sisfb_videoram = simple_strtoul(this_opt + 9, NULL, 0);
 #endif
 		} else {

drivers/video/fbdev/sm501fb.c

@@ -1187,9 +1187,9 @@ static ssize_t sm501fb_crtsrc_store(struct device *dev,
 	if (len < 1)
 		return -EINVAL;
 
-	if (strnicmp(buf, "crt", 3) == 0)
+	if (strncasecmp(buf, "crt", 3) == 0)
 		head = HEAD_CRT;
-	else if (strnicmp(buf, "panel", 5) == 0)
+	else if (strncasecmp(buf, "panel", 5) == 0)
 		head = HEAD_PANEL;
 	else
 		return -EINVAL;

fs/affs/amigaffs.c

@@ -10,8 +10,6 @@
 
 #include "affs.h"
 
-extern struct timezone sys_tz;
-
 static char ErrorBuffer[256];
 
 /*

fs/affs/file.c

@@ -584,11 +584,14 @@ affs_extent_file_ofs(struct inode *inode, u32 newsize)
 		bh->b_state &= ~(1UL << BH_New);
 		mark_buffer_dirty_inode(bh, inode);
 		if (prev_bh) {
-			u32 tmp = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next);
-			if (tmp)
-				affs_warning(sb, "extent_file_ofs", "next block already set for %d (%d)", bidx, tmp);
+			u32 tmp_next = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next);
+
+			if (tmp_next)
+				affs_warning(sb, "extent_file_ofs",
+					     "next block already set for %d (%d)",
+					     bidx, tmp_next);
 			AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr);
-			affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp);
+			affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp_next);
 			mark_buffer_dirty_inode(prev_bh, inode);
 			affs_brelse(prev_bh);
 		}
@@ -727,11 +730,14 @@ static int affs_write_end_ofs(struct file *file, struct address_space *mapping,
 			AFFS_DATA_HEAD(bh)->next = 0;
 			bh->b_state &= ~(1UL << BH_New);
 			if (prev_bh) {
-				u32 tmp = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next);
-				if (tmp)
-					affs_warning(sb, "commit_write_ofs", "next block already set for %d (%d)", bidx, tmp);
+				u32 tmp_next = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next);
+
+				if (tmp_next)
+					affs_warning(sb, "commit_write_ofs",
+						     "next block already set for %d (%d)",
+						     bidx, tmp_next);
 				AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr);
-				affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp);
+				affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp_next);
 				mark_buffer_dirty_inode(prev_bh, inode);
 			}
 		}
@@ -758,11 +764,14 @@ static int affs_write_end_ofs(struct file *file, struct address_space *mapping,
 			AFFS_DATA_HEAD(bh)->next = 0;
 			bh->b_state &= ~(1UL << BH_New);
 			if (prev_bh) {
-				u32 tmp = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next);
-				if (tmp)
-					affs_warning(sb, "commit_write_ofs", "next block already set for %d (%d)", bidx, tmp);
+				u32 tmp_next = be32_to_cpu(AFFS_DATA_HEAD(prev_bh)->next);
+
+				if (tmp_next)
+					affs_warning(sb, "commit_write_ofs",
+						     "next block already set for %d (%d)",
+						     bidx, tmp_next);
 				AFFS_DATA_HEAD(prev_bh)->next = cpu_to_be32(bh->b_blocknr);
-				affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp);
+				affs_adjust_checksum(prev_bh, bh->b_blocknr - tmp_next);
 				mark_buffer_dirty_inode(prev_bh, inode);
 			}
 		} else if (be32_to_cpu(AFFS_DATA_HEAD(bh)->size) < tmp)
@@ -842,12 +851,12 @@ affs_truncate(struct inode *inode)
 		struct address_space *mapping = inode->i_mapping;
 		struct page *page;
 		void *fsdata;
-		loff_t size = inode->i_size;
+		loff_t isize = inode->i_size;
 		int res;
 
-		res = mapping->a_ops->write_begin(NULL, mapping, size, 0, 0, &page, &fsdata);
+		res = mapping->a_ops->write_begin(NULL, mapping, isize, 0, 0, &page, &fsdata);
 		if (!res)
-			res = mapping->a_ops->write_end(NULL, mapping, size, 0, 0, page, fsdata);
+			res = mapping->a_ops->write_end(NULL, mapping, isize, 0, 0, page, fsdata);
 		else
 			inode->i_size = AFFS_I(inode)->mmu_private;
 		mark_inode_dirty(inode);

fs/affs/inode.c

@@ -14,13 +14,11 @@
 #include "affs.h"
 
 extern const struct inode_operations affs_symlink_inode_operations;
-extern struct timezone sys_tz;
 
 struct inode *affs_iget(struct super_block *sb, unsigned long ino)
 {
 	struct affs_sb_info	*sbi = AFFS_SB(sb);
 	struct buffer_head	*bh;
-	struct affs_head	*head;
 	struct affs_tail	*tail;
 	struct inode		*inode;
 	u32			 block;
@@ -49,7 +47,6 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino)
 		goto bad_inode;
 	}
 
-	head = AFFS_HEAD(bh);
 	tail = AFFS_TAIL(sb, bh);
 	prot = be32_to_cpu(tail->protect);
 

fs/affs/super.c

@@ -20,8 +20,6 @@
 #include <linux/writeback.h>
 #include "affs.h"
 
-extern struct timezone sys_tz;
-
 static int affs_statfs(struct dentry *dentry, struct kstatfs *buf);
 static int affs_remount (struct super_block *sb, int *flags, char *data);
 
@@ -308,7 +306,6 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
 	u32			 chksum;
 	int			 num_bm;
 	int			 i, j;
-	s32			 key;
 	kuid_t			 uid;
 	kgid_t			 gid;
 	int			 reserved;
@@ -367,7 +364,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
 		i = j = blocksize;
 		size = size / (blocksize / 512);
 	}
-	for (blocksize = i, key = 0; blocksize <= j; blocksize <<= 1, size >>= 1) {
+	for (blocksize = i; blocksize <= j; blocksize <<= 1, size >>= 1) {
 		sbi->s_root_block = root_block;
 		if (root_block < 0)
 			sbi->s_root_block = (reserved + size - 1) / 2;
@@ -399,7 +396,6 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
 			    be32_to_cpu(AFFS_ROOT_TAIL(sb, root_bh)->stype) == ST_ROOT) {
 				sbi->s_hashsize    = blocksize / 4 - 56;
 				sbi->s_root_block += num_bm;
-				key                        = 1;
 				goto got_root;
 			}
 			affs_brelse(root_bh);

fs/autofs4/autofs_i.h

@@ -79,6 +79,10 @@ struct autofs_info {
 };
 
 #define AUTOFS_INF_EXPIRING	(1<<0) /* dentry is in the process of expiring */
+#define AUTOFS_INF_NO_RCU	(1<<1) /* the dentry is being considered
+					* for expiry, so RCU_walk is
+					* not permitted
+					*/
 #define AUTOFS_INF_PENDING	(1<<2) /* dentry pending mount */
 
 struct autofs_wait_queue {
@@ -148,7 +152,7 @@ void autofs4_free_ino(struct autofs_info *);
 
 /* Expiration */
 int is_autofs4_dentry(struct dentry *);
-int autofs4_expire_wait(struct dentry *dentry);
+int autofs4_expire_wait(struct dentry *dentry, int rcu_walk);
 int autofs4_expire_run(struct super_block *, struct vfsmount *,
 			struct autofs_sb_info *,
 			struct autofs_packet_expire __user *);

fs/autofs4/dev-ioctl.c

@@ -450,7 +450,7 @@ static int autofs_dev_ioctl_requester(struct file *fp,
 	ino = autofs4_dentry_ino(path.dentry);
 	if (ino) {
 		err = 0;
-		autofs4_expire_wait(path.dentry);
+		autofs4_expire_wait(path.dentry, 0);
 		spin_lock(&sbi->fs_lock);
 		param->requester.uid = from_kuid_munged(current_user_ns(), ino->uid);
 		param->requester.gid = from_kgid_munged(current_user_ns(), ino->gid);

fs/autofs4/expire.c

@@ -30,12 +30,6 @@ static inline int autofs4_can_expire(struct dentry *dentry,
 		/* Too young to die */
 		if (!timeout || time_after(ino->last_used + timeout, now))
 			return 0;
-
-		/* update last_used here :-
-		   - obviously makes sense if it is in use now
-		   - less obviously, prevents rapid-fire expire
-		     attempts if expire fails the first time */
-		ino->last_used = now;
 	}
 	return 1;
 }
@@ -327,10 +321,19 @@ struct dentry *autofs4_expire_direct(struct super_block *sb,
 	if (ino->flags & AUTOFS_INF_PENDING)
 		goto out;
 	if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
-		ino->flags |= AUTOFS_INF_EXPIRING;
-		init_completion(&ino->expire_complete);
+		ino->flags |= AUTOFS_INF_NO_RCU;
 		spin_unlock(&sbi->fs_lock);
-		return root;
+		synchronize_rcu();
+		spin_lock(&sbi->fs_lock);
+		if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
+			ino->flags |= AUTOFS_INF_EXPIRING;
+			smp_mb();
+			ino->flags &= ~AUTOFS_INF_NO_RCU;
+			init_completion(&ino->expire_complete);
+			spin_unlock(&sbi->fs_lock);
+			return root;
+		}
+		ino->flags &= ~AUTOFS_INF_NO_RCU;
 	}
 out:
 	spin_unlock(&sbi->fs_lock);
@@ -339,6 +342,89 @@ struct dentry *autofs4_expire_direct(struct super_block *sb,
 	return NULL;
 }
 
+/* Check if 'dentry' should expire, or return a nearby
+ * dentry that is suitable.
+ * If returned dentry is different from arg dentry,
+ * then a dget() reference was taken, else not.
+ */
+static struct dentry *should_expire(struct dentry *dentry,
+				    struct vfsmount *mnt,
+				    unsigned long timeout,
+				    int how)
+{
+	int do_now = how & AUTOFS_EXP_IMMEDIATE;
+	int exp_leaves = how & AUTOFS_EXP_LEAVES;
+	struct autofs_info *ino = autofs4_dentry_ino(dentry);
+	unsigned int ino_count;
+
+	/* No point expiring a pending mount */
+	if (ino->flags & AUTOFS_INF_PENDING)
+		return NULL;
+
+	/*
+	 * Case 1: (i) indirect mount or top level pseudo direct mount
+	 *	   (autofs-4.1).
+	 *	   (ii) indirect mount with offset mount, check the "/"
+	 *	   offset (autofs-5.0+).
+	 */
+	if (d_mountpoint(dentry)) {
+		DPRINTK("checking mountpoint %p %.*s",
+			dentry, (int)dentry->d_name.len, dentry->d_name.name);
+
+		/* Can we umount this guy */
+		if (autofs4_mount_busy(mnt, dentry))
+			return NULL;
+
+		/* Can we expire this guy */
+		if (autofs4_can_expire(dentry, timeout, do_now))
+			return dentry;
+		return NULL;
+	}
+
+	if (dentry->d_inode && S_ISLNK(dentry->d_inode->i_mode)) {
+		DPRINTK("checking symlink %p %.*s",
+			dentry, (int)dentry->d_name.len, dentry->d_name.name);
+		/*
+		 * A symlink can't be "busy" in the usual sense so
+		 * just check last used for expire timeout.
+		 */
+		if (autofs4_can_expire(dentry, timeout, do_now))
+			return dentry;
+		return NULL;
+	}
+
+	if (simple_empty(dentry))
+		return NULL;
+
+	/* Case 2: tree mount, expire iff entire tree is not busy */
+	if (!exp_leaves) {
+		/* Path walk currently on this dentry? */
+		ino_count = atomic_read(&ino->count) + 1;
+		if (d_count(dentry) > ino_count)
+			return NULL;
+
+		if (!autofs4_tree_busy(mnt, dentry, timeout, do_now))
+			return dentry;
+	/*
+	 * Case 3: pseudo direct mount, expire individual leaves
+	 *	   (autofs-4.1).
+	 */
+	} else {
+		/* Path walk currently on this dentry? */
+		struct dentry *expired;
+		ino_count = atomic_read(&ino->count) + 1;
+		if (d_count(dentry) > ino_count)
+			return NULL;
+
+		expired = autofs4_check_leaves(mnt, dentry, timeout, do_now);
+		if (expired) {
+			if (expired == dentry)
+				dput(dentry);
+			return expired;
+		}
+	}
+	return NULL;
+}
 /*
  * Find an eligible tree to time-out
  * A tree is eligible if :-
@@ -353,11 +439,8 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
 	unsigned long timeout;
 	struct dentry *root = sb->s_root;
 	struct dentry *dentry;
-	struct dentry *expired = NULL;
-	int do_now = how & AUTOFS_EXP_IMMEDIATE;
-	int exp_leaves = how & AUTOFS_EXP_LEAVES;
+	struct dentry *expired;
 	struct autofs_info *ino;
-	unsigned int ino_count;
 
 	if (!root)
 		return NULL;
@@ -369,77 +452,28 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
 	while ((dentry = get_next_positive_subdir(dentry, root))) {
 		spin_lock(&sbi->fs_lock);
 		ino = autofs4_dentry_ino(dentry);
-		/* No point expiring a pending mount */
-		if (ino->flags & AUTOFS_INF_PENDING)
-			goto next;
-
-		/*
-		 * Case 1: (i) indirect mount or top level pseudo direct mount
-		 *	   (autofs-4.1).
-		 *	   (ii) indirect mount with offset mount, check the "/"
-		 *	   offset (autofs-5.0+).
-		 */
-		if (d_mountpoint(dentry)) {
-			DPRINTK("checking mountpoint %p %.*s",
-				dentry, (int)dentry->d_name.len, dentry->d_name.name);
-
-			/* Can we umount this guy */
-			if (autofs4_mount_busy(mnt, dentry))
-				goto next;
-
-			/* Can we expire this guy */
-			if (autofs4_can_expire(dentry, timeout, do_now)) {
-				expired = dentry;
-				goto found;
-			}
-			goto next;
+		if (ino->flags & AUTOFS_INF_NO_RCU)
+			expired = NULL;
+		else
+			expired = should_expire(dentry, mnt, timeout, how);
+		if (!expired) {
+			spin_unlock(&sbi->fs_lock);
+			continue;
 		}
-
-		if (dentry->d_inode && S_ISLNK(dentry->d_inode->i_mode)) {
-			DPRINTK("checking symlink %p %.*s",
-				dentry, (int)dentry->d_name.len, dentry->d_name.name);
-			/*
-			 * A symlink can't be "busy" in the usual sense so
-			 * just check last used for expire timeout.
-			 */
-			if (autofs4_can_expire(dentry, timeout, do_now)) {
-				expired = dentry;
-				goto found;
-			}
-			goto next;
-		}
-
-		if (simple_empty(dentry))
-			goto next;
-
-		/* Case 2: tree mount, expire iff entire tree is not busy */
-		if (!exp_leaves) {
-			/* Path walk currently on this dentry? */
-			ino_count = atomic_read(&ino->count) + 1;
-			if (d_count(dentry) > ino_count)
-				goto next;
-
-			if (!autofs4_tree_busy(mnt, dentry, timeout, do_now)) {
-				expired = dentry;
-				goto found;
-			}
-		/*
-		 * Case 3: pseudo direct mount, expire individual leaves
-		 *	   (autofs-4.1).
-		 */
-		} else {
-			/* Path walk currently on this dentry? */
-			ino_count = atomic_read(&ino->count) + 1;
-			if (d_count(dentry) > ino_count)
-				goto next;
-
-			expired = autofs4_check_leaves(mnt, dentry, timeout, do_now);
-			if (expired) {
+		ino = autofs4_dentry_ino(expired);
+		ino->flags |= AUTOFS_INF_NO_RCU;
+		spin_unlock(&sbi->fs_lock);
+		synchronize_rcu();
+		spin_lock(&sbi->fs_lock);
+		if (should_expire(expired, mnt, timeout, how)) {
+			if (expired != dentry)
 				dput(dentry);
-				goto found;
-			}
+			goto found;
 		}
-next:
+
+		ino->flags &= ~AUTOFS_INF_NO_RCU;
+		if (expired != dentry)
+			dput(expired);
 		spin_unlock(&sbi->fs_lock);
 	}
 	return NULL;
@@ -447,8 +481,9 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
 found:
 	DPRINTK("returning %p %.*s",
 		expired, (int)expired->d_name.len, expired->d_name.name);
-	ino = autofs4_dentry_ino(expired);
 	ino->flags |= AUTOFS_INF_EXPIRING;
+	smp_mb();
+	ino->flags &= ~AUTOFS_INF_NO_RCU;
 	init_completion(&ino->expire_complete);
 	spin_unlock(&sbi->fs_lock);
 	spin_lock(&sbi->lookup_lock);
@@ -461,13 +496,18 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
 	return expired;
 }
 
-int autofs4_expire_wait(struct dentry *dentry)
+int autofs4_expire_wait(struct dentry *dentry, int rcu_walk)
 {
 	struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
 	struct autofs_info *ino = autofs4_dentry_ino(dentry);
 	int status;
 
 	/* Block on any pending expire */
+	if (!(ino->flags & (AUTOFS_INF_EXPIRING | AUTOFS_INF_NO_RCU)))
+		return 0;
+	if (rcu_walk)
+		return -ECHILD;
+
 	spin_lock(&sbi->fs_lock);
 	if (ino->flags & AUTOFS_INF_EXPIRING) {
 		spin_unlock(&sbi->fs_lock);
@@ -519,6 +559,8 @@ int autofs4_expire_run(struct super_block *sb,
 
 	spin_lock(&sbi->fs_lock);
 	ino = autofs4_dentry_ino(dentry);
+	/* avoid rapid-fire expire attempts if expiry fails */
+	ino->last_used = now;
 	ino->flags &= ~AUTOFS_INF_EXPIRING;
 	complete_all(&ino->expire_complete);
 	spin_unlock(&sbi->fs_lock);
@@ -545,6 +587,8 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
 		ret = autofs4_wait(sbi, dentry, NFY_EXPIRE);
 
 		spin_lock(&sbi->fs_lock);
+		/* avoid rapid-fire expire attempts if expiry fails */
+		ino->last_used = now;
 		ino->flags &= ~AUTOFS_INF_EXPIRING;
 		complete_all(&ino->expire_complete);
 		spin_unlock(&sbi->fs_lock);

fs/binfmt_misc.c

@@ -62,7 +62,22 @@ static struct file_system_type bm_fs_type;
 static struct vfsmount *bm_mnt;
 static int entry_count;
 
-/* 
+/*
+ * Max length of the register string.  Determined by:
+ *  - 7 delimiters
+ *  - name:   ~50 bytes
+ *  - type:   1 byte
+ *  - offset: 3 bytes (has to be smaller than BINPRM_BUF_SIZE)
+ *  - magic:  128 bytes (512 in escaped form)
+ *  - mask:   128 bytes (512 in escaped form)
+ *  - interp: ~50 bytes
+ *  - flags:  5 bytes
+ * Round that up a bit, and then back off to hold the internal data
+ * (like struct Node).
+ */
+#define MAX_REGISTER_LENGTH 1920
+
+/*
  * Check if we support the binfmt
  * if we do, return the node, else NULL
  * locking is done in load_misc_binary
@@ -279,7 +294,7 @@ static Node *create_entry(const char __user *buffer, size_t count)
 
 	/* some sanity checks */
 	err = -EINVAL;
-	if ((count < 11) || (count > 256))
+	if ((count < 11) || (count > MAX_REGISTER_LENGTH))
 		goto out;
 
 	err = -ENOMEM;
@@ -396,12 +411,12 @@ static int parse_command(const char __user *buffer, size_t count)
 {
 	char s[4];
 
-	if (!count)
-		return 0;
 	if (count > 3)
 		return -EINVAL;
 	if (copy_from_user(s, buffer, count))
 		return -EFAULT;
+	if (!count)
+		return 0;
 	if (s[count-1] == '\n')
 		count--;
 	if (count == 1 && s[0] == '0')

fs/buffer.c

@@ -1331,8 +1331,8 @@ lookup_bh_lru(struct block_device *bdev, sector_t block, unsigned size)
 	for (i = 0; i < BH_LRU_SIZE; i++) {
 		struct buffer_head *bh = __this_cpu_read(bh_lrus.bhs[i]);
 
-		if (bh && bh->b_bdev == bdev &&
-				bh->b_blocknr == block && bh->b_size == size) {
+		if (bh && bh->b_blocknr == block && bh->b_bdev == bdev &&
+		    bh->b_size == size) {
 			if (i) {
 				while (i) {
 					__this_cpu_write(bh_lrus.bhs[i],

fs/cifs/cifs_dfs_ref.c

@@ -195,15 +195,15 @@ char *cifs_compose_mount_options(const char *sb_mountdata,
 		else
 			noff = tkn_e - (sb_mountdata + off) + 1;
 
-		if (strnicmp(sb_mountdata + off, "unc=", 4) == 0) {
+		if (strncasecmp(sb_mountdata + off, "unc=", 4) == 0) {
 			off += noff;
 			continue;
 		}
-		if (strnicmp(sb_mountdata + off, "ip=", 3) == 0) {
+		if (strncasecmp(sb_mountdata + off, "ip=", 3) == 0) {
 			off += noff;
 			continue;
 		}
-		if (strnicmp(sb_mountdata + off, "prefixpath=", 11) == 0) {
+		if (strncasecmp(sb_mountdata + off, "prefixpath=", 11) == 0) {
 			off += noff;
 			continue;
 		}

fs/cifs/connect.c

@@ -1718,7 +1718,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 				goto cifs_parse_mount_err;
 			}
 
-			 if (strnicmp(string, "default", 7) != 0) {
+			 if (strncasecmp(string, "default", 7) != 0) {
 				vol->iocharset = kstrdup(string,
 							 GFP_KERNEL);
 				if (!vol->iocharset) {
@@ -1790,7 +1790,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 			if (string == NULL)
 				goto out_nomem;
 
-			if (strnicmp(string, "1", 1) == 0) {
+			if (strncasecmp(string, "1", 1) == 0) {
 				/* This is the default */
 				break;
 			}

fs/fat/misc.c

@@ -164,8 +164,6 @@ int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster)
 	return 0;
 }
 
-extern struct timezone sys_tz;
-
 /*
  * The epoch of FAT timestamp is 1980.
  *     :  bits :     value