x86/debug: Add KERN_<LEVEL> to bare printks, convert printks to pr_<level>

Use a more current logging style:

 - Bare printks should have a KERN_<LEVEL> for consistency's sake
 - Add pr_fmt where appropriate
 - Neaten some macro definitions
 - Convert some Ok output to OK
 - Use "%s: ", __func__ in pr_fmt for summit
 - Convert some printks to pr_<level>

Message output is not identical in all cases.
Signed-off-by: NJoe Perches <joe@perches.com>
Cc: levinsasha928@gmail.com
Link: http://lkml.kernel.org/r/1337655007.24226.10.camel@joe2Laptop
[ merged two similar patches, tidied up the changelog ]
Signed-off-by: NIngo Molnar <mingo@kernel.org>

arch/x86/include/asm/floppy.h

@@ -99,7 +99,7 @@ static irqreturn_t floppy_hardint(int irq, void *dev_id)
 		virtual_dma_residue += virtual_dma_count;
 		virtual_dma_count = 0;
 #ifdef TRACE_FLPY_INT
-		printk("count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n",
+		printk(KERN_DEBUG "count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n",
 		       virtual_dma_count, virtual_dma_residue, calls, bytes,
 		       dma_wait);
 		calls = 0;

arch/x86/include/asm/pci_x86.h

@@ -7,9 +7,13 @@
 #undef DEBUG
 
 #ifdef DEBUG
-#define DBG(x...) printk(x)
+#define DBG(fmt, ...) printk(fmt, ##__VA_ARGS__)
 #else
-#define DBG(x...)
+#define DBG(fmt, ...)				\
+do {						\
+	if (0)					\
+		printk(fmt, ##__VA_ARGS__);	\
+} while (0)
 #endif
 
 #define PCI_PROBE_BIOS		0x0001

arch/x86/include/asm/pgtable-2level.h

@@ -2,9 +2,9 @@
 #define _ASM_X86_PGTABLE_2LEVEL_H
 
 #define pte_ERROR(e) \
-	printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, (e).pte_low)
+	pr_err("%s:%d: bad pte %08lx\n", __FILE__, __LINE__, (e).pte_low)
 #define pgd_ERROR(e) \
-	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
+	pr_err("%s:%d: bad pgd %08lx\n", __FILE__, __LINE__, pgd_val(e))
 
 /*
  * Certain architectures need to do special things when PTEs

arch/x86/include/asm/pgtable-3level.h

@@ -9,13 +9,13 @@
  */
 
 #define pte_ERROR(e)							\
-	printk("%s:%d: bad pte %p(%08lx%08lx).\n",			\
+	pr_err("%s:%d: bad pte %p(%08lx%08lx)\n",			\
 	       __FILE__, __LINE__, &(e), (e).pte_high, (e).pte_low)
 #define pmd_ERROR(e)							\
-	printk("%s:%d: bad pmd %p(%016Lx).\n",				\
+	pr_err("%s:%d: bad pmd %p(%016Lx)\n",				\
 	       __FILE__, __LINE__, &(e), pmd_val(e))
 #define pgd_ERROR(e)							\
-	printk("%s:%d: bad pgd %p(%016Lx).\n",				\
+	pr_err("%s:%d: bad pgd %p(%016Lx)\n",				\
 	       __FILE__, __LINE__, &(e), pgd_val(e))
 
 /* Rules for using set_pte: the pte being assigned *must* be

arch/x86/include/asm/pgtable_64.h

@@ -26,16 +26,16 @@ extern pgd_t init_level4_pgt[];
 extern void paging_init(void);
 
 #define pte_ERROR(e)					\
-	printk("%s:%d: bad pte %p(%016lx).\n",		\
+	pr_err("%s:%d: bad pte %p(%016lx)\n",		\
 	       __FILE__, __LINE__, &(e), pte_val(e))
 #define pmd_ERROR(e)					\
-	printk("%s:%d: bad pmd %p(%016lx).\n",		\
+	pr_err("%s:%d: bad pmd %p(%016lx)\n",		\
 	       __FILE__, __LINE__, &(e), pmd_val(e))
 #define pud_ERROR(e)					\
-	printk("%s:%d: bad pud %p(%016lx).\n",		\
+	pr_err("%s:%d: bad pud %p(%016lx)\n",		\
 	       __FILE__, __LINE__, &(e), pud_val(e))
 #define pgd_ERROR(e)					\
-	printk("%s:%d: bad pgd %p(%016lx).\n",		\
+	pr_err("%s:%d: bad pgd %p(%016lx)\n",		\
 	       __FILE__, __LINE__, &(e), pgd_val(e))
 
 struct mm_struct;

arch/x86/kernel/alternative.c

+#define pr_fmt(fmt) "SMP alternatives: " fmt
+
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/mutex.h>
@@ -63,8 +65,11 @@ static int __init setup_noreplace_paravirt(char *str)
 __setup("noreplace-paravirt", setup_noreplace_paravirt);
 #endif
 
-#define DPRINTK(fmt, args...) if (debug_alternative) \
-	printk(KERN_DEBUG fmt, args)
+#define DPRINTK(fmt, ...)				\
+do {							\
+	if (debug_alternative)				\
+		printk(KERN_DEBUG fmt, ##__VA_ARGS__);	\
+} while (0)
 
 /*
  * Each GENERIC_NOPX is of X bytes, and defined as an array of bytes
@@ -428,7 +433,7 @@ void alternatives_smp_switch(int smp)
 	 * If this still occurs then you should see a hang
 	 * or crash shortly after this line:
 	 */
-	printk("lockdep: fixing up alternatives.\n");
+	pr_info("lockdep: fixing up alternatives\n");
 #endif
 
 	if (noreplace_smp || smp_alt_once || skip_smp_alternatives)
@@ -444,14 +449,14 @@ void alternatives_smp_switch(int smp)
 	if (smp == smp_mode) {
 		/* nothing */
 	} else if (smp) {
-		printk(KERN_INFO "SMP alternatives: switching to SMP code\n");
+		pr_info("switching to SMP code\n");
 		clear_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
 		clear_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
 		list_for_each_entry(mod, &smp_alt_modules, next)
 			alternatives_smp_lock(mod->locks, mod->locks_end,
 					      mod->text, mod->text_end);
 	} else {
-		printk(KERN_INFO "SMP alternatives: switching to UP code\n");
+		pr_info("switching to UP code\n");
 		set_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
 		set_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
 		list_for_each_entry(mod, &smp_alt_modules, next)
@@ -546,7 +551,7 @@ void __init alternative_instructions(void)
 #ifdef CONFIG_SMP
 	if (smp_alt_once) {
 		if (1 == num_possible_cpus()) {
-			printk(KERN_INFO "SMP alternatives: switching to UP code\n");
+			pr_info("switching to UP code\n");
 			set_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
 			set_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
 

arch/x86/kernel/amd_nb.c

@@ -2,6 +2,9 @@
  * Shared support code for AMD K8 northbridges and derivates.
  * Copyright 2006 Andi Kleen, SUSE Labs. Subject to GPLv2.
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/init.h>
@@ -258,7 +261,7 @@ void amd_flush_garts(void)
 	}
 	spin_unlock_irqrestore(&gart_lock, flags);
 	if (!flushed)
-		printk("nothing to flush?\n");
+		pr_notice("nothing to flush?\n");
 }
 EXPORT_SYMBOL_GPL(amd_flush_garts);
 
@@ -269,11 +272,10 @@ static __init int init_amd_nbs(void)
 	err = amd_cache_northbridges();
 
 	if (err < 0)
-		printk(KERN_NOTICE "AMD NB: Cannot enumerate AMD northbridges.\n");
+		pr_notice("Cannot enumerate AMD northbridges\n");
 
 	if (amd_cache_gart() < 0)
-		printk(KERN_NOTICE "AMD NB: Cannot initialize GART flush words, "
-		       "GART support disabled.\n");
+		pr_notice("Cannot initialize GART flush words, GART support disabled\n");
 
 	return err;
 }

arch/x86/kernel/apic/io_apic.c

@@ -448,8 +448,8 @@ static int __add_pin_to_irq_node(struct irq_cfg *cfg, int node, int apic, int pi
 
 	entry = alloc_irq_pin_list(node);
 	if (!entry) {
-		printk(KERN_ERR "can not alloc irq_pin_list (%d,%d,%d)\n",
-				node, apic, pin);
+		pr_err("can not alloc irq_pin_list (%d,%d,%d)\n",
+		       node, apic, pin);
 		return -ENOMEM;
 	}
 	entry->apic = apic;
@@ -661,7 +661,7 @@ static void clear_IO_APIC_pin(unsigned int apic, unsigned int pin)
 	ioapic_mask_entry(apic, pin);
 	entry = ioapic_read_entry(apic, pin);
 	if (entry.irr)
-		printk(KERN_ERR "Unable to reset IRR for apic: %d, pin :%d\n",
+		pr_err("Unable to reset IRR for apic: %d, pin :%d\n",
 		       mpc_ioapic_id(apic), pin);
 }
 
@@ -895,7 +895,7 @@ static int irq_polarity(int idx)
 		}
 		case 2: /* reserved */
 		{
-			printk(KERN_WARNING "broken BIOS!!\n");
+			pr_warn("broken BIOS!!\n");
 			polarity = 1;
 			break;
 		}
@@ -906,7 +906,7 @@ static int irq_polarity(int idx)
 		}
 		default: /* invalid */
 		{
-			printk(KERN_WARNING "broken BIOS!!\n");
+			pr_warn("broken BIOS!!\n");
 			polarity = 1;
 			break;
 		}
@@ -948,7 +948,7 @@ static int irq_trigger(int idx)
 				}
 				default:
 				{
-					printk(KERN_WARNING "broken BIOS!!\n");
+					pr_warn("broken BIOS!!\n");
 					trigger = 1;
 					break;
 				}
@@ -962,7 +962,7 @@ static int irq_trigger(int idx)
 		}
 		case 2: /* reserved */
 		{
-			printk(KERN_WARNING "broken BIOS!!\n");
+			pr_warn("broken BIOS!!\n");
 			trigger = 1;
 			break;
 		}
@@ -973,7 +973,7 @@ static int irq_trigger(int idx)
 		}
 		default: /* invalid */
 		{
-			printk(KERN_WARNING "broken BIOS!!\n");
+			pr_warn("broken BIOS!!\n");
 			trigger = 0;
 			break;
 		}
@@ -991,7 +991,7 @@ static int pin_2_irq(int idx, int apic, int pin)
 	 * Debugging check, we are in big trouble if this message pops up!
 	 */
 	if (mp_irqs[idx].dstirq != pin)
-		printk(KERN_ERR "broken BIOS or MPTABLE parser, ayiee!!\n");
+		pr_err("broken BIOS or MPTABLE parser, ayiee!!\n");
 
 	if (test_bit(bus, mp_bus_not_pci)) {
 		irq = mp_irqs[idx].srcbusirq;
@@ -1521,7 +1521,6 @@ __apicdebuginit(void) print_IO_APIC(int ioapic_idx)
 		reg_03.raw = io_apic_read(ioapic_idx, 3);
 	raw_spin_unlock_irqrestore(&ioapic_lock, flags);
 
-	printk("\n");
 	printk(KERN_DEBUG "IO APIC #%d......\n", mpc_ioapic_id(ioapic_idx));
 	printk(KERN_DEBUG ".... register #00: %08X\n", reg_00.raw);
 	printk(KERN_DEBUG ".......    : physical APIC id: %02X\n", reg_00.bits.ID);
@@ -1578,7 +1577,7 @@ __apicdebuginit(void) print_IO_APIC(int ioapic_idx)
 				i,
 				ir_entry->index
 			);
-			printk("%1d   %1d    %1d    %1d   %1d   "
+			pr_cont("%1d   %1d    %1d    %1d   %1d   "
 				"%1d    %1d     %X    %02X\n",
 				ir_entry->format,
 				ir_entry->mask,
@@ -1598,7 +1597,7 @@ __apicdebuginit(void) print_IO_APIC(int ioapic_idx)
 				i,
 				entry.dest
 			);
-			printk("%1d    %1d    %1d   %1d   %1d    "
+			pr_cont("%1d    %1d    %1d   %1d   %1d    "
 				"%1d    %1d    %02X\n",
 				entry.mask,
 				entry.trigger,
@@ -1651,8 +1650,8 @@ __apicdebuginit(void) print_IO_APICs(void)
 			continue;
 		printk(KERN_DEBUG "IRQ%d ", irq);
 		for_each_irq_pin(entry, cfg->irq_2_pin)
-			printk("-> %d:%d", entry->apic, entry->pin);
-		printk("\n");
+			pr_cont("-> %d:%d", entry->apic, entry->pin);
+		pr_cont("\n");
 	}
 
 	printk(KERN_INFO ".................................... done.\n");
@@ -1665,9 +1664,9 @@ __apicdebuginit(void) print_APIC_field(int base)
 	printk(KERN_DEBUG);
 
 	for (i = 0; i < 8; i++)
-		printk(KERN_CONT "%08x", apic_read(base + i*0x10));
+		pr_cont("%08x", apic_read(base + i*0x10));
 
-	printk(KERN_CONT "\n");
+	pr_cont("\n");
 }
 
 __apicdebuginit(void) print_local_APIC(void *dummy)
@@ -1769,7 +1768,7 @@ __apicdebuginit(void) print_local_APIC(void *dummy)
 			printk(KERN_DEBUG "... APIC EILVT%d: %08x\n", i, v);
 		}
 	}
-	printk("\n");
+	pr_cont("\n");
 }
 
 __apicdebuginit(void) print_local_APICs(int maxcpu)
@@ -2065,7 +2064,7 @@ void __init setup_ioapic_ids_from_mpc_nocheck(void)
 		reg_00.raw = io_apic_read(ioapic_idx, 0);
 		raw_spin_unlock_irqrestore(&ioapic_lock, flags);
 		if (reg_00.bits.ID != mpc_ioapic_id(ioapic_idx))
-			printk("could not set ID!\n");
+			pr_cont("could not set ID!\n");
 		else
 			apic_printk(APIC_VERBOSE, " ok.\n");
 	}
@@ -3563,7 +3562,8 @@ static int __init io_apic_get_unique_id(int ioapic, int apic_id)
 
 		/* Sanity check */
 		if (reg_00.bits.ID != apic_id) {
-			printk("IOAPIC[%d]: Unable to change apic_id!\n", ioapic);
+			pr_err("IOAPIC[%d]: Unable to change apic_id!\n",
+			       ioapic);
 			return -1;
 		}
 	}

arch/x86/kernel/apic/summit_32.c

@@ -26,6 +26,8 @@
  *
  */
 
+#define pr_fmt(fmt) "summit: %s: " fmt, __func__
+
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <asm/io.h>
@@ -235,8 +237,8 @@ static int summit_apic_id_registered(void)
 
 static void summit_setup_apic_routing(void)
 {
-	printk("Enabling APIC mode:  Summit.  Using %d I/O APICs\n",
-						nr_ioapics);
+	pr_info("Enabling APIC mode:  Summit.  Using %d I/O APICs\n",
+		nr_ioapics);
 }
 
 static int summit_cpu_present_to_apicid(int mps_cpu)
@@ -275,7 +277,7 @@ static unsigned int summit_cpu_mask_to_apicid(const struct cpumask *cpumask)
 		int new_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
 
 		if (round && APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) {
-			printk("%s: Not a valid mask!\n", __func__);
+			pr_err("Not a valid mask!\n");
 			return BAD_APICID;
 		}
 		apicid |= new_apicid;
@@ -355,7 +357,7 @@ static int setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus)
 		}
 	}
 	if (i == rio_table_hdr->num_rio_dev) {
-		printk(KERN_ERR "%s: Couldn't find owner Cyclone for Winnipeg!\n", __func__);
+		pr_err("Couldn't find owner Cyclone for Winnipeg!\n");
 		return last_bus;
 	}
 
@@ -366,7 +368,7 @@ static int setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus)
 		}
 	}
 	if (i == rio_table_hdr->num_scal_dev) {
-		printk(KERN_ERR "%s: Couldn't find owner Twister for Cyclone!\n", __func__);
+		pr_err("Couldn't find owner Twister for Cyclone!\n");
 		return last_bus;
 	}
 
@@ -396,7 +398,7 @@ static int setup_pci_node_map_for_wpeg(int wpeg_num, int last_bus)
 		num_buses = 9;
 		break;
 	default:
-		printk(KERN_INFO "%s: Unsupported Winnipeg type!\n", __func__);
+		pr_info("Unsupported Winnipeg type!\n");
 		return last_bus;
 	}
 
@@ -411,13 +413,15 @@ static int build_detail_arrays(void)
 	int i, scal_detail_size, rio_detail_size;
 
 	if (rio_table_hdr->num_scal_dev > MAX_NUMNODES) {
-		printk(KERN_WARNING "%s: MAX_NUMNODES too low!  Defined as %d, but system has %d nodes.\n", __func__, MAX_NUMNODES, rio_table_hdr->num_scal_dev);
+		pr_warn("MAX_NUMNODES too low!  Defined as %d, but system has %d nodes\n",
+			MAX_NUMNODES, rio_table_hdr->num_scal_dev);
 		return 0;
 	}
 
 	switch (rio_table_hdr->version) {
 	default:
-		printk(KERN_WARNING "%s: Invalid Rio Grande Table Version: %d\n", __func__, rio_table_hdr->version);
+		pr_warn("Invalid Rio Grande Table Version: %d\n",
+			rio_table_hdr->version);
 		return 0;
 	case 2:
 		scal_detail_size = 11;
@@ -462,7 +466,7 @@ void setup_summit(void)
 		offset = *((unsigned short *)(ptr + offset));
 	}
 	if (!rio_table_hdr) {
-		printk(KERN_ERR "%s: Unable to locate Rio Grande Table in EBDA - bailing!\n", __func__);
+		pr_err("Unable to locate Rio Grande Table in EBDA - bailing!\n");
 		return;
 	}
 

arch/x86/kernel/apm_32.c

@@ -201,6 +201,8 @@
  *    http://www.microsoft.com/whdc/archive/amp_12.mspx]
  */
 
+#define pr_fmt(fmt) "apm: " fmt
+
 #include <linux/module.h>
 
 #include <linux/poll.h>
@@ -485,11 +487,11 @@ static void apm_error(char *str, int err)
 		if (error_table[i].key == err)
 			break;
 	if (i < ERROR_COUNT)
-		printk(KERN_NOTICE "apm: %s: %s\n", str, error_table[i].msg);
+		pr_notice("%s: %s\n", str, error_table[i].msg);
 	else if (err < 0)
-		printk(KERN_NOTICE "apm: %s: linux error code %i\n", str, err);
+		pr_notice("%s: linux error code %i\n", str, err);
 	else
-		printk(KERN_NOTICE "apm: %s: unknown error code %#2.2x\n",
+		pr_notice("%s: unknown error code %#2.2x\n",
 		       str, err);
 }
 
@@ -1184,7 +1186,7 @@ static void queue_event(apm_event_t event, struct apm_user *sender)
 			static int notified;
 
 			if (notified++ == 0)
-			    printk(KERN_ERR "apm: an event queue overflowed\n");
+				pr_err("an event queue overflowed\n");
 			if (++as->event_tail >= APM_MAX_EVENTS)
 				as->event_tail = 0;
 		}
@@ -1447,7 +1449,7 @@ static void apm_mainloop(void)
 static int check_apm_user(struct apm_user *as, const char *func)
 {
 	if (as == NULL || as->magic != APM_BIOS_MAGIC) {
-		printk(KERN_ERR "apm: %s passed bad filp\n", func);
+		pr_err("%s passed bad filp\n", func);
 		return 1;
 	}
 	return 0;
@@ -1586,7 +1588,7 @@ static int do_release(struct inode *inode, struct file *filp)
 		     as1 = as1->next)
 			;
 		if (as1 == NULL)
-			printk(KERN_ERR "apm: filp not in user list\n");
+			pr_err("filp not in user list\n");
 		else
 			as1->next = as->next;
 	}
@@ -1600,11 +1602,9 @@ static int do_open(struct inode *inode, struct file *filp)
 	struct apm_user *as;
 
 	as = kmalloc(sizeof(*as), GFP_KERNEL);
-	if (as == NULL) {
-		printk(KERN_ERR "apm: cannot allocate struct of size %d bytes\n",
-		       sizeof(*as));
+	if (as == NULL)
 		return -ENOMEM;
-	}
+
 	as->magic = APM_BIOS_MAGIC;
 	as->event_tail = as->event_head = 0;
 	as->suspends_pending = as->standbys_pending = 0;
@@ -2313,16 +2313,16 @@ static int __init apm_init(void)
 	}
 
 	if (apm_info.disabled) {
-		printk(KERN_NOTICE "apm: disabled on user request.\n");
+		pr_notice("disabled on user request.\n");
 		return -ENODEV;
 	}
 	if ((num_online_cpus() > 1) && !power_off && !smp) {
-		printk(KERN_NOTICE "apm: disabled - APM is not SMP safe.\n");
+		pr_notice("disabled - APM is not SMP safe.\n");
 		apm_info.disabled = 1;
 		return -ENODEV;
 	}
 	if (!acpi_disabled) {
-		printk(KERN_NOTICE "apm: overridden by ACPI.\n");
+		pr_notice("overridden by ACPI.\n");
 		apm_info.disabled = 1;
 		return -ENODEV;
 	}
@@ -2356,8 +2356,7 @@ static int __init apm_init(void)
 
 	kapmd_task = kthread_create(apm, NULL, "kapmd");
 	if (IS_ERR(kapmd_task)) {
-		printk(KERN_ERR "apm: disabled - Unable to start kernel "
-				"thread.\n");
+		pr_err("disabled - Unable to start kernel thread\n");
 		err = PTR_ERR(kapmd_task);
 		kapmd_task = NULL;
 		remove_proc_entry("apm", NULL);

arch/x86/kernel/cpu/bugs.c

@@ -55,8 +55,8 @@ static void __init check_fpu(void)
 
 	if (!boot_cpu_data.hard_math) {
 #ifndef CONFIG_MATH_EMULATION
-		printk(KERN_EMERG "No coprocessor found and no math emulation present.\n");
-		printk(KERN_EMERG "Giving up.\n");
+		pr_emerg("No coprocessor found and no math emulation present\n");
+		pr_emerg("Giving up\n");
 		for (;;) ;
 #endif
 		return;
@@ -86,7 +86,7 @@ static void __init check_fpu(void)
 
 	boot_cpu_data.fdiv_bug = fdiv_bug;
 	if (boot_cpu_data.fdiv_bug)
-		printk(KERN_WARNING "Hmm, FPU with FDIV bug.\n");
+		pr_warn("Hmm, FPU with FDIV bug\n");
 }
 
 static void __init check_hlt(void)
@@ -94,16 +94,16 @@ static void __init check_hlt(void)
 	if (boot_cpu_data.x86 >= 5 || paravirt_enabled())
 		return;
 
-	printk(KERN_INFO "Checking 'hlt' instruction... ");
+	pr_info("Checking 'hlt' instruction... ");
 	if (!boot_cpu_data.hlt_works_ok) {
-		printk("disabled\n");
+		pr_cont("disabled\n");
 		return;
 	}
 	halt();
 	halt();
 	halt();
 	halt();
-	printk(KERN_CONT "OK.\n");
+	pr_cont("OK\n");
 }
 
 /*
@@ -116,7 +116,7 @@ static void __init check_popad(void)
 #ifndef CONFIG_X86_POPAD_OK
 	int res, inp = (int) &res;
 
-	printk(KERN_INFO "Checking for popad bug... ");
+	pr_info("Checking for popad bug... ");
 	__asm__ __volatile__(
 	  "movl $12345678,%%eax; movl $0,%%edi; pusha; popa; movl (%%edx,%%edi),%%ecx "
 	  : "=&a" (res)
@@ -127,9 +127,9 @@ static void __init check_popad(void)
 	 * CPU hard. Too bad.
 	 */
 	if (res != 12345678)
-		printk(KERN_CONT "Buggy.\n");
+		pr_cont("Buggy\n");
 	else
-		printk(KERN_CONT "OK.\n");
+		pr_cont("OK\n");
 #endif
 }
 
@@ -161,7 +161,7 @@ void __init check_bugs(void)
 {
 	identify_boot_cpu();
 #ifndef CONFIG_SMP
-	printk(KERN_INFO "CPU: ");
+	pr_info("CPU: ");
 	print_cpu_info(&boot_cpu_data);
 #endif
 	check_config();

arch/x86/kernel/cpu/mcheck/mce.c

@@ -7,6 +7,9 @@
  * Copyright 2008 Intel Corporation
  * Author: Andi Kleen
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/thread_info.h>
 #include <linux/capability.h>
 #include <linux/miscdevice.h>
@@ -210,7 +213,7 @@ static void drain_mcelog_buffer(void)
 				cpu_relax();
 
 				if (!m->finished && retries >= 4) {
-					pr_err("MCE: skipping error being logged currently!\n");
+					pr_err("skipping error being logged currently!\n");
 					break;
 				}
 			}
@@ -1167,8 +1170,9 @@ int memory_failure(unsigned long pfn, int vector, int flags)
 {
 	/* mce_severity() should not hand us an ACTION_REQUIRED error */
 	BUG_ON(flags & MF_ACTION_REQUIRED);
-	printk(KERN_ERR "Uncorrected memory error in page 0x%lx ignored\n"
-		"Rebuild kernel with CONFIG_MEMORY_FAILURE=y for smarter handling\n", pfn);
+	pr_err("Uncorrected memory error in page 0x%lx ignored\n"
+	       "Rebuild kernel with CONFIG_MEMORY_FAILURE=y for smarter handling\n",
+	       pfn);
 
 	return 0;
 }
@@ -1358,11 +1362,10 @@ static int __cpuinit __mcheck_cpu_cap_init(void)
 
 	b = cap & MCG_BANKCNT_MASK;
 	if (!banks)
-		printk(KERN_INFO "mce: CPU supports %d MCE banks\n", b);
+		pr_info("CPU supports %d MCE banks\n", b);
 
 	if (b > MAX_NR_BANKS) {
-		printk(KERN_WARNING
-		       "MCE: Using only %u machine check banks out of %u\n",
+		pr_warn("Using only %u machine check banks out of %u\n",
 			MAX_NR_BANKS, b);
 		b = MAX_NR_BANKS;
 	}
@@ -1419,7 +1422,7 @@ static void __mcheck_cpu_init_generic(void)
 static int __cpuinit __mcheck_cpu_apply_quirks(struct cpuinfo_x86 *c)
 {
 	if (c->x86_vendor == X86_VENDOR_UNKNOWN) {
-		pr_info("MCE: unknown CPU type - not enabling MCE support.\n");
+		pr_info("unknown CPU type - not enabling MCE support\n");
 		return -EOPNOTSUPP;
 	}
 
@@ -1574,7 +1577,7 @@ static void __mcheck_cpu_init_timer(void)
 /* Handle unconfigured int18 (should never happen) */
 static void unexpected_machine_check(struct pt_regs *regs, long error_code)
 {
-	printk(KERN_ERR "CPU#%d: Unexpected int18 (Machine Check).\n",
+	pr_err("CPU#%d: Unexpected int18 (Machine Check)\n",
 	       smp_processor_id());
 }
 
@@ -1893,8 +1896,7 @@ static int __init mcheck_enable(char *str)
 			get_option(&str, &monarch_timeout);
 		}
 	} else {
-		printk(KERN_INFO "mce argument %s ignored. Please use /sys\n",
-		       str);
+		pr_info("mce argument %s ignored. Please use /sys\n", str);
 		return 0;
 	}
 	return 1;

arch/x86/kernel/cpu/perf_event_intel.c

@@ -5,6 +5,8 @@
  * among events on a single PMU.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/stddef.h>
 #include <linux/types.h>
 #include <linux/init.h>
@@ -1000,7 +1002,7 @@ static void intel_pmu_reset(void)
 
 	local_irq_save(flags);
 
-	printk("clearing PMU state on CPU#%d\n", smp_processor_id());
+	pr_info("clearing PMU state on CPU#%d\n", smp_processor_id());
 
 	for (idx = 0; idx < x86_pmu.num_counters; idx++) {
 		checking_wrmsrl(x86_pmu_config_addr(idx), 0ull);
@@ -1638,14 +1640,14 @@ static __init void intel_clovertown_quirk(void)
 	 * But taken together it might just make sense to not enable PEBS on
 	 * these chips.
 	 */
-	printk(KERN_WARNING "PEBS disabled due to CPU errata.\n");
+	pr_warn("PEBS disabled due to CPU errata\n");
 	x86_pmu.pebs = 0;
 	x86_pmu.pebs_constraints = NULL;
 }
 
 static __init void intel_sandybridge_quirk(void)
 {
-	printk(KERN_WARNING "PEBS disabled due to CPU errata.\n");
+	pr_warn("PEBS disabled due to CPU errata\n");
 	x86_pmu.pebs = 0;
 	x86_pmu.pebs_constraints = NULL;
 }
@@ -1667,8 +1669,8 @@ static __init void intel_arch_events_quirk(void)
 	/* disable event that reported as not presend by cpuid */
 	for_each_set_bit(bit, x86_pmu.events_mask, ARRAY_SIZE(intel_arch_events_map)) {
 		intel_perfmon_event_map[intel_arch_events_map[bit].id] = 0;
-		printk(KERN_WARNING "CPUID marked event: \'%s\' unavailable\n",
-				intel_arch_events_map[bit].name);
+		pr_warn("CPUID marked event: \'%s\' unavailable\n",
+			intel_arch_events_map[bit].name);
 	}
 }
 
@@ -1687,7 +1689,7 @@ static __init void intel_nehalem_quirk(void)
 		intel_perfmon_event_map[PERF_COUNT_HW_BRANCH_MISSES] = 0x7f89;
 		ebx.split.no_branch_misses_retired = 0;
 		x86_pmu.events_maskl = ebx.full;
-		printk(KERN_INFO "CPU erratum AAJ80 worked around\n");
+		pr_info("CPU erratum AAJ80 worked around\n");
 	}
 }
 

arch/x86/kernel/dumpstack.c

@@ -27,8 +27,8 @@ static int die_counter;
 
 void printk_address(unsigned long address, int reliable)
 {
-	printk(" [<%p>] %s%pB\n", (void *) address,
-			reliable ? "" : "? ", (void *) address);
+	pr_cont(" [<%p>] %s%pB\n",
+		(void *)address, reliable ? "" : "? ", (void *)address);
 }
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER

arch/x86/kernel/dumpstack_32.c

@@ -73,11 +73,11 @@ show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
 		if (kstack_end(stack))
 			break;
 		if (i && ((i % STACKSLOTS_PER_LINE) == 0))
-			printk(KERN_CONT "\n");
-		printk(KERN_CONT " %08lx", *stack++);
+			pr_cont("\n");
+		pr_cont(" %08lx", *stack++);
 		touch_nmi_watchdog();
 	}
-	printk(KERN_CONT "\n");
+	pr_cont("\n");
 	show_trace_log_lvl(task, regs, sp, bp, log_lvl);
 }
 
@@ -89,9 +89,9 @@ void show_regs(struct pt_regs *regs)
 	print_modules();
 	__show_regs(regs, !user_mode_vm(regs));
 
-	printk(KERN_EMERG "Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n",
-		TASK_COMM_LEN, current->comm, task_pid_nr(current),
-		current_thread_info(), current, task_thread_info(current));
+	pr_emerg("Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n",
+		 TASK_COMM_LEN, current->comm, task_pid_nr(current),
+		 current_thread_info(), current, task_thread_info(current));
 	/*
 	 * When in-kernel, we also print out the stack and code at the
 	 * time of the fault..
@@ -102,10 +102,10 @@ void show_regs(struct pt_regs *regs)
 		unsigned char c;
 		u8 *ip;
 
-		printk(KERN_EMERG "Stack:\n");
+		pr_emerg("Stack:\n");
 		show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG);
 
-		printk(KERN_EMERG "Code: ");
+		pr_emerg("Code:");
 
 		ip = (u8 *)regs->ip - code_prologue;
 		if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
@@ -116,16 +116,16 @@ void show_regs(struct pt_regs *regs)
 		for (i = 0; i < code_len; i++, ip++) {
 			if (ip < (u8 *)PAGE_OFFSET ||
 					probe_kernel_address(ip, c)) {
-				printk(KERN_CONT " Bad EIP value.");
+				pr_cont("  Bad EIP value.");
 				break;
 			}
 			if (ip == (u8 *)regs->ip)
-				printk(KERN_CONT "<%02x> ", c);
+				pr_cont(" <%02x>", c);
 			else
-				printk(KERN_CONT "%02x ", c);
+				pr_cont(" %02x", c);
 		}
 	}
-	printk(KERN_CONT "\n");
+	pr_cont("\n");
 }
 
 int is_valid_bugaddr(unsigned long ip)

arch/x86/kernel/dumpstack_64.c

@@ -228,20 +228,20 @@ show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
 		if (stack >= irq_stack && stack <= irq_stack_end) {
 			if (stack == irq_stack_end) {
 				stack = (unsigned long *) (irq_stack_end[-1]);
-				printk(KERN_CONT " <EOI> ");
+				pr_cont(" <EOI> ");
 			}
 		} else {
 		if (((long) stack & (THREAD_SIZE-1)) == 0)
 			break;
 		}
 		if (i && ((i % STACKSLOTS_PER_LINE) == 0))
-			printk(KERN_CONT "\n");
-		printk(KERN_CONT " %016lx", *stack++);
+			pr_cont("\n");
+		pr_cont(" %016lx", *stack++);
 		touch_nmi_watchdog();
 	}
 	preempt_enable();
 
-	printk(KERN_CONT "\n");
+	pr_cont("\n");
 	show_trace_log_lvl(task, regs, sp, bp, log_lvl);
 }
 
@@ -256,8 +256,8 @@ void show_regs(struct pt_regs *regs)
 	printk("CPU %d ", cpu);
 	print_modules();
 	__show_regs(regs, 1);
-	printk("Process %s (pid: %d, threadinfo %p, task %p)\n",
-		cur->comm, cur->pid, task_thread_info(cur), cur);
+	printk(KERN_DEFAULT "Process %s (pid: %d, threadinfo %p, task %p)\n",
+	       cur->comm, cur->pid, task_thread_info(cur), cur);
 
 	/*
 	 * When in-kernel, we also print out the stack and code at the
@@ -284,16 +284,16 @@ void show_regs(struct pt_regs *regs)
 		for (i = 0; i < code_len; i++, ip++) {
 			if (ip < (u8 *)PAGE_OFFSET ||
 					probe_kernel_address(ip, c)) {
-				printk(KERN_CONT " Bad RIP value.");
+				pr_cont(" Bad RIP value.");
 				break;
 			}
 			if (ip == (u8 *)regs->ip)
-				printk(KERN_CONT "<%02x> ", c);
+				pr_cont("<%02x> ", c);
 			else
-				printk(KERN_CONT "%02x ", c);
+				pr_cont("%02x ", c);
 		}
 	}
-	printk(KERN_CONT "\n");
+	pr_cont("\n");
 }
 
 int is_valid_bugaddr(unsigned long ip)

arch/x86/kernel/irq.c

@@ -294,9 +294,9 @@ void fixup_irqs(void)
 		raw_spin_unlock(&desc->lock);
 
 		if (break_affinity && set_affinity)
-			printk("Broke affinity for irq %i\n", irq);
+			pr_notice("Broke affinity for irq %i\n", irq);
 		else if (!set_affinity)
-			printk("Cannot set affinity for irq %i\n", irq);
+			pr_notice("Cannot set affinity for irq %i\n", irq);
 	}
 
 	/*

arch/x86/kernel/module.c

@@ -15,6 +15,9 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/moduleloader.h>
 #include <linux/elf.h>
 #include <linux/vmalloc.h>
@@ -30,9 +33,14 @@
 #include <asm/pgtable.h>
 
 #if 0
-#define DEBUGP printk
+#define DEBUGP(fmt, ...)				\
+	printk(KERN_DEBUG fmt, ##__VA_ARGS__)
 #else
-#define DEBUGP(fmt...)
+#define DEBUGP(fmt, ...)				\
+do {							\
+	if (0)						\
+		printk(KERN_DEBUG fmt, ##__VA_ARGS__);	\
+} while (0)
 #endif
 
 void *module_alloc(unsigned long size)
@@ -56,8 +64,8 @@ int apply_relocate(Elf32_Shdr *sechdrs,
 	Elf32_Sym *sym;
 	uint32_t *location;
 
-	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	DEBUGP("Applying relocate section %u to %u\n",
+	       relsec, sechdrs[relsec].sh_info);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
 		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
@@ -77,7 +85,7 @@ int apply_relocate(Elf32_Shdr *sechdrs,
 			*location += sym->st_value - (uint32_t)location;
 			break;
 		default:
-			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
+			pr_err("%s: Unknown relocation: %u\n",
 			       me->name, ELF32_R_TYPE(rel[i].r_info));
 			return -ENOEXEC;
 		}
@@ -97,8 +105,8 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 	void *loc;
 	u64 val;
 
-	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
+	DEBUGP("Applying relocate section %u to %u\n",
+	       relsec, sechdrs[relsec].sh_info);
 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
 		/* This is where to make the change */
 		loc = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
@@ -110,8 +118,8 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 			+ ELF64_R_SYM(rel[i].r_info);
 
 		DEBUGP("type %d st_value %Lx r_addend %Lx loc %Lx\n",
-			(int)ELF64_R_TYPE(rel[i].r_info),
-			sym->st_value, rel[i].r_addend, (u64)loc);
+		       (int)ELF64_R_TYPE(rel[i].r_info),
+		       sym->st_value, rel[i].r_addend, (u64)loc);
 
 		val = sym->st_value + rel[i].r_addend;
 
@@ -140,7 +148,7 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 #endif
 			break;
 		default:
-			printk(KERN_ERR "module %s: Unknown rela relocation: %llu\n",
+			pr_err("%s: Unknown rela relocation: %llu\n",
 			       me->name, ELF64_R_TYPE(rel[i].r_info));
 			return -ENOEXEC;
 		}
@@ -148,9 +156,9 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 	return 0;
 
 overflow:
-	printk(KERN_ERR "overflow in relocation type %d val %Lx\n",
+	pr_err("overflow in relocation type %d val %Lx\n",
 	       (int)ELF64_R_TYPE(rel[i].r_info), val);
-	printk(KERN_ERR "`%s' likely not compiled with -mcmodel=kernel\n",
+	pr_err("`%s' likely not compiled with -mcmodel=kernel\n",
 	       me->name);
 	return -ENOEXEC;
 }

arch/x86/kernel/pci-calgary_64.c

@@ -22,6 +22,8 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
+#define pr_fmt(fmt) "Calgary: " fmt
+
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -245,7 +247,7 @@ static unsigned long iommu_range_alloc(struct device *dev,
 		offset = iommu_area_alloc(tbl->it_map, tbl->it_size, 0,
 					  npages, 0, boundary_size, 0);
 		if (offset == ~0UL) {
-			printk(KERN_WARNING "Calgary: IOMMU full.\n");
+			pr_warn("IOMMU full\n");
 			spin_unlock_irqrestore(&tbl->it_lock, flags);
 			if (panic_on_overflow)
 				panic("Calgary: fix the allocator.\n");
@@ -271,8 +273,8 @@ static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl,
 	entry = iommu_range_alloc(dev, tbl, npages);
 
 	if (unlikely(entry == DMA_ERROR_CODE)) {
-		printk(KERN_WARNING "Calgary: failed to allocate %u pages in "
-		       "iommu %p\n", npages, tbl);
+		pr_warn("failed to allocate %u pages in iommu %p\n",
+			npages, tbl);
 		return DMA_ERROR_CODE;
 	}
 
@@ -561,8 +563,7 @@ static void calgary_tce_cache_blast(struct iommu_table *tbl)
 		i++;
 	} while ((val & 0xff) != 0xff && i < 100);
 	if (i == 100)
-		printk(KERN_WARNING "Calgary: PCI bus not quiesced, "
-		       "continuing anyway\n");
+		pr_warn("PCI bus not quiesced, continuing anyway\n");
 
 	/* invalidate TCE cache */
 	target = calgary_reg(bbar, tar_offset(tbl->it_busno));
@@ -604,8 +605,7 @@ static void calioc2_tce_cache_blast(struct iommu_table *tbl)
 		i++;
 	} while ((val64 & 0xff) != 0xff && i < 100);
 	if (i == 100)
-		printk(KERN_WARNING "CalIOC2: PCI bus not quiesced, "
-		       "continuing anyway\n");
+		pr_warn("CalIOC2: PCI bus not quiesced, continuing anyway\n");
 
 	/* 3. poll Page Migration DEBUG for SoftStopFault */
 	target = calgary_reg(bbar, phb_offset(bus) | PHB_PAGE_MIG_DEBUG);
@@ -617,8 +617,7 @@ static void calioc2_tce_cache_blast(struct iommu_table *tbl)
 		if (++count < 100)
 			goto begin;
 		else {
-			printk(KERN_WARNING "CalIOC2: too many SoftStopFaults, "
-			       "aborting TCE cache flush sequence!\n");
+			pr_warn("CalIOC2: too many SoftStopFaults, aborting TCE cache flush sequence!\n");
 			return; /* pray for the best */
 		}
 	}
@@ -840,8 +839,8 @@ static void calgary_dump_error_regs(struct iommu_table *tbl)
 	plssr = be32_to_cpu(readl(target));
 
 	/* If no error, the agent ID in the CSR is not valid */
-	printk(KERN_EMERG "Calgary: DMA error on Calgary PHB 0x%x, "
-	       "0x%08x@CSR 0x%08x@PLSSR\n", tbl->it_busno, csr, plssr);
+	pr_emerg("DMA error on Calgary PHB 0x%x, 0x%08x@CSR 0x%08x@PLSSR\n",
+		 tbl->it_busno, csr, plssr);
 }
 
 static void calioc2_dump_error_regs(struct iommu_table *tbl)
@@ -867,22 +866,21 @@ static void calioc2_dump_error_regs(struct iommu_table *tbl)
 	target = calgary_reg(bbar, phboff | 0x800);
 	mck = be32_to_cpu(readl(target));
 
-	printk(KERN_EMERG "Calgary: DMA error on CalIOC2 PHB 0x%x\n",
-	       tbl->it_busno);
+	pr_emerg("DMA error on CalIOC2 PHB 0x%x\n", tbl->it_busno);
 
-	printk(KERN_EMERG "Calgary: 0x%08x@CSR 0x%08x@PLSSR 0x%08x@CSMR 0x%08x@MCK\n",
-	       csr, plssr, csmr, mck);
+	pr_emerg("0x%08x@CSR 0x%08x@PLSSR 0x%08x@CSMR 0x%08x@MCK\n",
+		 csr, plssr, csmr, mck);
 
 	/* dump rest of error regs */
-	printk(KERN_EMERG "Calgary: ");
+	pr_emerg("");
 	for (i = 0; i < ARRAY_SIZE(errregs); i++) {
 		/* err regs are at 0x810 - 0x870 */
 		erroff = (0x810 + (i * 0x10));
 		target = calgary_reg(bbar, phboff | erroff);
 		errregs[i] = be32_to_cpu(readl(target));
-		printk("0x%08x@0x%lx ", errregs[i], erroff);
+		pr_cont("0x%08x@0x%lx ", errregs[i], erroff);
 	}
-	printk("\n");
+	pr_cont("\n");
 
 	/* root complex status */
 	target = calgary_reg(bbar, phboff | PHB_ROOT_COMPLEX_STATUS);

arch/x86/kernel/process.c

+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
@@ -145,16 +147,14 @@ void show_regs_common(void)
 	/* Board Name is optional */
 	board = dmi_get_system_info(DMI_BOARD_NAME);
 
-	printk(KERN_CONT "\n");
-	printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s",
-		current->pid, current->comm, print_tainted(),
-		init_utsname()->release,
-		(int)strcspn(init_utsname()->version, " "),
-		init_utsname()->version);
-	printk(KERN_CONT " %s %s", vendor, product);
-	if (board)
-		printk(KERN_CONT "/%s", board);
-	printk(KERN_CONT "\n");
+	printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s %s %s%s%s\n",
+	       current->pid, current->comm, print_tainted(),
+	       init_utsname()->release,
+	       (int)strcspn(init_utsname()->version, " "),
+	       init_utsname()->version,
+	       vendor, product,
+	       board ? "/" : "",
+	       board ? board : "");
 }
 
 void flush_thread(void)
@@ -645,7 +645,7 @@ static void amd_e400_idle(void)
 			amd_e400_c1e_detected = true;
 			if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC))
 				mark_tsc_unstable("TSC halt in AMD C1E");
-			printk(KERN_INFO "System has AMD C1E enabled\n");
+			pr_info("System has AMD C1E enabled\n");
 		}
 	}
 
@@ -659,8 +659,7 @@ static void amd_e400_idle(void)
 			 */
 			clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE,
 					   &cpu);
-			printk(KERN_INFO "Switch to broadcast mode on CPU%d\n",
-			       cpu);
+			pr_info("Switch to broadcast mode on CPU%d\n", cpu);
 		}
 		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
 
@@ -681,8 +680,7 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
 	if (pm_idle == poll_idle && smp_num_siblings > 1) {
-		printk_once(KERN_WARNING "WARNING: polling idle and HT enabled,"
-			" performance may degrade.\n");
+		pr_warn_once("WARNING: polling idle and HT enabled, performance may degrade\n");
 	}
 #endif
 	if (pm_idle)
@@ -692,11 +690,11 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c)
 		/*
 		 * One CPU supports mwait => All CPUs supports mwait
 		 */
-		printk(KERN_INFO "using mwait in idle threads.\n");
+		pr_info("using mwait in idle threads\n");
 		pm_idle = mwait_idle;
 	} else if (cpu_has_amd_erratum(amd_erratum_400)) {
 		/* E400: APIC timer interrupt does not wake up CPU from C1e */
-		printk(KERN_INFO "using AMD E400 aware idle routine\n");
+		pr_info("using AMD E400 aware idle routine\n");
 		pm_idle = amd_e400_idle;
 	} else
 		pm_idle = default_idle;
@@ -715,7 +713,7 @@ static int __init idle_setup(char *str)
 		return -EINVAL;
 
 	if (!strcmp(str, "poll")) {
-		printk("using polling idle threads.\n");
+		pr_info("using polling idle threads\n");
 		pm_idle = poll_idle;
 		boot_option_idle_override = IDLE_POLL;
 	} else if (!strcmp(str, "mwait")) {

arch/x86/kernel/process_64.c

@@ -117,10 +117,10 @@ void release_thread(struct task_struct *dead_task)
 {
 	if (dead_task->mm) {
 		if (dead_task->mm->context.size) {
-			printk("WARNING: dead process %8s still has LDT? <%p/%d>\n",
-					dead_task->comm,
-					dead_task->mm->context.ldt,
-					dead_task->mm->context.size);
+			pr_warn("WARNING: dead process %8s still has LDT? <%p/%d>\n",
+				dead_task->comm,
+				dead_task->mm->context.ldt,
+				dead_task->mm->context.size);
 			BUG();
 		}
 	}

arch/x86/kernel/reboot.c

+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/reboot.h>
 #include <linux/init.h>
@@ -152,7 +154,8 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
 {
 	if (reboot_type != BOOT_BIOS) {
 		reboot_type = BOOT_BIOS;
-		printk(KERN_INFO "%s series board detected. Selecting BIOS-method for reboots.\n", d->ident);
+		pr_info("%s series board detected. Selecting %s-method for reboots.\n",
+			"BIOS", d->ident);
 	}
 	return 0;
 }
@@ -207,8 +210,8 @@ static int __init set_pci_reboot(const struct dmi_system_id *d)
 {
 	if (reboot_type != BOOT_CF9) {
 		reboot_type = BOOT_CF9;
-		printk(KERN_INFO "%s series board detected. "
-		       "Selecting PCI-method for reboots.\n", d->ident);
+		pr_info("%s series board detected. Selecting %s-method for reboots.\n",
+			"PCI", d->ident);
 	}
 	return 0;
 }
@@ -217,7 +220,8 @@ static int __init set_kbd_reboot(const struct dmi_system_id *d)
 {
 	if (reboot_type != BOOT_KBD) {
 		reboot_type = BOOT_KBD;
-		printk(KERN_INFO "%s series board detected. Selecting KBD-method for reboot.\n", d->ident);
+		pr_info("%s series board detected. Selecting %s-method for reboot.\n",
+			"KBD", d->ident);
 	}
 	return 0;
 }
@@ -668,7 +672,7 @@ static void __machine_emergency_restart(int emergency)
 
 static void native_machine_restart(char *__unused)
 {
-	printk("machine restart\n");
+	pr_notice("machine restart\n");
 
 	if (!reboot_force)
 		machine_shutdown();

arch/x86/kernel/signal.c

@@ -6,6 +6,9 @@
  *  2000-06-20  Pentium III FXSR, SSE support by Gareth Hughes
  *  2000-2002   x86-64 support by Andi Kleen
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
@@ -814,7 +817,7 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
 		       me->comm, me->pid, where, frame,
 		       regs->ip, regs->sp, regs->orig_ax);
 		print_vma_addr(" in ", regs->ip);
-		printk(KERN_CONT "\n");
+		pr_cont("\n");
 	}
 
 	force_sig(SIGSEGV, me);

arch/x86/kernel/smpboot.c

-/*
+ /*
  *	x86 SMP booting functions
  *
  *	(c) 1995 Alan Cox, Building #3 <alan@lxorguk.ukuu.org.uk>
@@ -39,6 +39,8 @@
  *	Glauber Costa		:	i386 and x86_64 integration
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/init.h>
 #include <linux/smp.h>
 #include <linux/module.h>
@@ -184,7 +186,7 @@ static void __cpuinit smp_callin(void)
 	 * boards)
 	 */
 
-	pr_debug("CALLIN, before setup_local_APIC().\n");
+	pr_debug("CALLIN, before setup_local_APIC()\n");
 	if (apic->smp_callin_clear_local_apic)
 		apic->smp_callin_clear_local_apic();
 	setup_local_APIC();
@@ -420,17 +422,16 @@ static void impress_friends(void)
 	/*
 	 * Allow the user to impress friends.
 	 */
-	pr_debug("Before bogomips.\n");
+	pr_debug("Before bogomips\n");
 	for_each_possible_cpu(cpu)
 		if (cpumask_test_cpu(cpu, cpu_callout_mask))
 			bogosum += cpu_data(cpu).loops_per_jiffy;
-	printk(KERN_INFO
-		"Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
+	pr_info("Total of %d processors activated (%lu.%02lu BogoMIPS)\n",
 		num_online_cpus(),
 		bogosum/(500000/HZ),
 		(bogosum/(5000/HZ))%100);
 
-	pr_debug("Before bogocount - setting activated=1.\n");
+	pr_debug("Before bogocount - setting activated=1\n");
 }
 
 void __inquire_remote_apic(int apicid)
@@ -440,18 +441,17 @@ void __inquire_remote_apic(int apicid)
 	int timeout;
 	u32 status;
 
-	printk(KERN_INFO "Inquiring remote APIC 0x%x...\n", apicid);
+	pr_info("Inquiring remote APIC 0x%x...\n", apicid);
 
 	for (i = 0; i < ARRAY_SIZE(regs); i++) {
-		printk(KERN_INFO "... APIC 0x%x %s: ", apicid, names[i]);
+		pr_info("... APIC 0x%x %s: ", apicid, names[i]);
 
 		/*
 		 * Wait for idle.
 		 */
 		status = safe_apic_wait_icr_idle();
 		if (status)
-			printk(KERN_CONT
-			       "a previous APIC delivery may have failed\n");
+			pr_cont("a previous APIC delivery may have failed\n");
 
 		apic_icr_write(APIC_DM_REMRD | regs[i], apicid);
 
@@ -464,10 +464,10 @@ void __inquire_remote_apic(int apicid)
 		switch (status) {
 		case APIC_ICR_RR_VALID:
 			status = apic_read(APIC_RRR);
-			printk(KERN_CONT "%08x\n", status);
+			pr_cont("%08x\n", status);
 			break;
 		default:
-			printk(KERN_CONT "failed\n");
+			pr_cont("failed\n");
 		}
 	}
 }
@@ -501,12 +501,12 @@ wakeup_secondary_cpu_via_nmi(int logical_apicid, unsigned long start_eip)
 			apic_write(APIC_ESR, 0);
 		accept_status = (apic_read(APIC_ESR) & 0xEF);
 	}
-	pr_debug("NMI sent.\n");
+	pr_debug("NMI sent\n");
 
 	if (send_status)
-		printk(KERN_ERR "APIC never delivered???\n");
+		pr_err("APIC never delivered???\n");
 	if (accept_status)
-		printk(KERN_ERR "APIC delivery error (%lx).\n", accept_status);
+		pr_err("APIC delivery error (%lx)\n", accept_status);
 
 	return (send_status | accept_status);
 }
@@ -528,7 +528,7 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
 		apic_read(APIC_ESR);
 	}
 
-	pr_debug("Asserting INIT.\n");
+	pr_debug("Asserting INIT\n");
 
 	/*
 	 * Turn INIT on target chip
@@ -544,7 +544,7 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
 
 	mdelay(10);
 
-	pr_debug("Deasserting INIT.\n");
+	pr_debug("Deasserting INIT\n");
 
 	/* Target chip */
 	/* Send IPI */
@@ -577,14 +577,14 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
 	/*
 	 * Run STARTUP IPI loop.
 	 */
-	pr_debug("#startup loops: %d.\n", num_starts);
+	pr_debug("#startup loops: %d\n", num_starts);
 
 	for (j = 1; j <= num_starts; j++) {
-		pr_debug("Sending STARTUP #%d.\n", j);
+		pr_debug("Sending STARTUP #%d\n", j);
 		if (maxlvt > 3)		/* Due to the Pentium erratum 3AP.  */
 			apic_write(APIC_ESR, 0);
 		apic_read(APIC_ESR);
-		pr_debug("After apic_write.\n");
+		pr_debug("After apic_write\n");
 
 		/*
 		 * STARTUP IPI
@@ -601,7 +601,7 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
 		 */
 		udelay(300);
 
-		pr_debug("Startup point 1.\n");
+		pr_debug("Startup point 1\n");
 
 		pr_debug("Waiting for send to finish...\n");
 		send_status = safe_apic_wait_icr_idle();
@@ -616,12 +616,12 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
 		if (send_status || accept_status)
 			break;
 	}
-	pr_debug("After Startup.\n");
+	pr_debug("After Startup\n");
 
 	if (send_status)
-		printk(KERN_ERR "APIC never delivered???\n");
+		pr_err("APIC never delivered???\n");
 	if (accept_status)
-		printk(KERN_ERR "APIC delivery error (%lx).\n", accept_status);
+		pr_err("APIC delivery error (%lx)\n", accept_status);
 
 	return (send_status | accept_status);
 }
@@ -635,11 +635,11 @@ static void __cpuinit announce_cpu(int cpu, int apicid)
 	if (system_state == SYSTEM_BOOTING) {
 		if (node != current_node) {
 			if (current_node > (-1))
-				pr_cont(" Ok.\n");
+				pr_cont(" OK\n");
 			current_node = node;
 			pr_info("Booting Node %3d, Processors ", node);
 		}
-		pr_cont(" #%d%s", cpu, cpu == (nr_cpu_ids - 1) ? " Ok.\n" : "");
+		pr_cont(" #%d%s", cpu, cpu == (nr_cpu_ids - 1) ? " OK\n" : "");
 		return;
 	} else
 		pr_info("Booting Node %d Processor %d APIC 0x%x\n",
@@ -719,9 +719,9 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 		/*
 		 * allow APs to start initializing.
 		 */
-		pr_debug("Before Callout %d.\n", cpu);
+		pr_debug("Before Callout %d\n", cpu);
 		cpumask_set_cpu(cpu, cpu_callout_mask);
-		pr_debug("After Callout %d.\n", cpu);
+		pr_debug("After Callout %d\n", cpu);
 
 		/*
 		 * Wait 5s total for a response
@@ -749,7 +749,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 				pr_err("CPU%d: Stuck ??\n", cpu);
 			else
 				/* trampoline code not run */
-				pr_err("CPU%d: Not responding.\n", cpu);
+				pr_err("CPU%d: Not responding\n", cpu);
 			if (apic->inquire_remote_apic)
 				apic->inquire_remote_apic(apicid);
 		}
@@ -794,7 +794,7 @@ int __cpuinit native_cpu_up(unsigned int cpu, struct task_struct *tidle)
 	if (apicid == BAD_APICID || apicid == boot_cpu_physical_apicid ||
 	    !physid_isset(apicid, phys_cpu_present_map) ||
 	    !apic->apic_id_valid(apicid)) {
-		printk(KERN_ERR "%s: bad cpu %d\n", __func__, cpu);
+		pr_err("%s: bad cpu %d\n", __func__, cpu);
 		return -EINVAL;
 	}
 
@@ -875,9 +875,8 @@ static int __init smp_sanity_check(unsigned max_cpus)
 		unsigned int cpu;
 		unsigned nr;
 
-		printk(KERN_WARNING
-		       "More than 8 CPUs detected - skipping them.\n"
-		       "Use CONFIG_X86_BIGSMP.\n");
+		pr_warn("More than 8 CPUs detected - skipping them\n"
+			"Use CONFIG_X86_BIGSMP\n");
 
 		nr = 0;
 		for_each_present_cpu(cpu) {
@@ -898,8 +897,7 @@ static int __init smp_sanity_check(unsigned max_cpus)
 #endif
 
 	if (!physid_isset(hard_smp_processor_id(), phys_cpu_present_map)) {
-		printk(KERN_WARNING
-			"weird, boot CPU (#%d) not listed by the BIOS.\n",
+		pr_warn("weird, boot CPU (#%d) not listed by the BIOS\n",
 			hard_smp_processor_id());
 
 		physid_set(hard_smp_processor_id(), phys_cpu_present_map);
@@ -911,11 +909,10 @@ static int __init smp_sanity_check(unsigned max_cpus)
 	 */
 	if (!smp_found_config && !acpi_lapic) {
 		preempt_enable();
-		printk(KERN_NOTICE "SMP motherboard not detected.\n");
+		pr_notice("SMP motherboard not detected\n");
 		disable_smp();
 		if (APIC_init_uniprocessor())
-			printk(KERN_NOTICE "Local APIC not detected."
-					   " Using dummy APIC emulation.\n");
+			pr_notice("Local APIC not detected. Using dummy APIC emulation.\n");
 		return -1;
 	}
 
@@ -924,9 +921,8 @@ static int __init smp_sanity_check(unsigned max_cpus)
 	 * CPU too, but we do it for the sake of robustness anyway.
 	 */
 	if (!apic->check_phys_apicid_present(boot_cpu_physical_apicid)) {
-		printk(KERN_NOTICE
-			"weird, boot CPU (#%d) not listed by the BIOS.\n",
-			boot_cpu_physical_apicid);
+		pr_notice("weird, boot CPU (#%d) not listed by the BIOS\n",
+			  boot_cpu_physical_apicid);
 		physid_set(hard_smp_processor_id(), phys_cpu_present_map);
 	}
 	preempt_enable();
@@ -939,8 +935,7 @@ static int __init smp_sanity_check(unsigned max_cpus)
 		if (!disable_apic) {
 			pr_err("BIOS bug, local APIC #%d not detected!...\n",
 				boot_cpu_physical_apicid);
-			pr_err("... forcing use of dummy APIC emulation."
-				"(tell your hw vendor)\n");
+			pr_err("... forcing use of dummy APIC emulation (tell your hw vendor)\n");
 		}
 		smpboot_clear_io_apic();
 		disable_ioapic_support();
@@ -953,7 +948,7 @@ static int __init smp_sanity_check(unsigned max_cpus)
 	 * If SMP should be disabled, then really disable it!
 	 */
 	if (!max_cpus) {
-		printk(KERN_INFO "SMP mode deactivated.\n");
+		pr_info("SMP mode deactivated\n");
 		smpboot_clear_io_apic();
 
 		connect_bsp_APIC();
@@ -1005,7 +1000,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
 
 
 	if (smp_sanity_check(max_cpus) < 0) {
-		printk(KERN_INFO "SMP disabled\n");
+		pr_info("SMP disabled\n");
 		disable_smp();
 		goto out;
 	}
@@ -1043,7 +1038,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
 	 * Set up local APIC timer on boot CPU.
 	 */
 
-	printk(KERN_INFO "CPU%d: ", 0);
+	pr_info("CPU%d: ", 0);
 	print_cpu_info(&cpu_data(0));
 	x86_init.timers.setup_percpu_clockev();
 
@@ -1093,7 +1088,7 @@ void __init native_smp_prepare_boot_cpu(void)
 
 void __init native_smp_cpus_done(unsigned int max_cpus)
 {
-	pr_debug("Boot done.\n");
+	pr_debug("Boot done\n");
 
 	nmi_selftest();
 	impress_friends();
@@ -1154,8 +1149,7 @@ __init void prefill_possible_map(void)
 
 	/* nr_cpu_ids could be reduced via nr_cpus= */
 	if (possible > nr_cpu_ids) {
-		printk(KERN_WARNING
-			"%d Processors exceeds NR_CPUS limit of %d\n",
+		pr_warn("%d Processors exceeds NR_CPUS limit of %d\n",
 			possible, nr_cpu_ids);
 		possible = nr_cpu_ids;
 	}
@@ -1164,13 +1158,12 @@ __init void prefill_possible_map(void)
 	if (!setup_max_cpus)
 #endif
 	if (possible > i) {
-		printk(KERN_WARNING
-			"%d Processors exceeds max_cpus limit of %u\n",
+		pr_warn("%d Processors exceeds max_cpus limit of %u\n",
 			possible, setup_max_cpus);
 		possible = i;
 	}
 
-	printk(KERN_INFO "SMP: Allowing %d CPUs, %d hotplug CPUs\n",
+	pr_info("Allowing %d CPUs, %d hotplug CPUs\n",
 		possible, max_t(int, possible - num_processors, 0));
 
 	for (i = 0; i < possible; i++)

arch/x86/kernel/traps.c

@@ -9,6 +9,9 @@
 /*
  * Handle hardware traps and faults.
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/interrupt.h>
 #include <linux/kallsyms.h>
 #include <linux/spinlock.h>
@@ -143,12 +146,11 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
 #ifdef CONFIG_X86_64
 	if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
 	    printk_ratelimit()) {
-		printk(KERN_INFO
-		       "%s[%d] trap %s ip:%lx sp:%lx error:%lx",
-		       tsk->comm, tsk->pid, str,
-		       regs->ip, regs->sp, error_code);
+		pr_info("%s[%d] trap %s ip:%lx sp:%lx error:%lx",
+			tsk->comm, tsk->pid, str,
+			regs->ip, regs->sp, error_code);
 		print_vma_addr(" in ", regs->ip);
-		printk("\n");
+		pr_cont("\n");
 	}
 #endif
 
@@ -269,12 +271,11 @@ do_general_protection(struct pt_regs *regs, long error_code)
 
 	if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
 			printk_ratelimit()) {
-		printk(KERN_INFO
-			"%s[%d] general protection ip:%lx sp:%lx error:%lx",
+		pr_info("%s[%d] general protection ip:%lx sp:%lx error:%lx",
 			tsk->comm, task_pid_nr(tsk),
 			regs->ip, regs->sp, error_code);
 		print_vma_addr(" in ", regs->ip);
-		printk("\n");
+		pr_cont("\n");
 	}
 
 	force_sig(SIGSEGV, tsk);
@@ -570,7 +571,7 @@ do_spurious_interrupt_bug(struct pt_regs *regs, long error_code)
 	conditional_sti(regs);
 #if 0
 	/* No need to warn about this any longer. */
-	printk(KERN_INFO "Ignoring P6 Local APIC Spurious Interrupt Bug...\n");
+	pr_info("Ignoring P6 Local APIC Spurious Interrupt Bug...\n");
 #endif
 }
 

arch/x86/kernel/tsc.c

+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/init.h>
@@ -84,8 +86,7 @@ EXPORT_SYMBOL_GPL(check_tsc_unstable);
 #ifdef CONFIG_X86_TSC
 int __init notsc_setup(char *str)
 {
-	printk(KERN_WARNING "notsc: Kernel compiled with CONFIG_X86_TSC, "
-			"cannot disable TSC completely.\n");
+	pr_warn("Kernel compiled with CONFIG_X86_TSC, cannot disable TSC completely\n");
 	tsc_disabled = 1;
 	return 1;
 }
@@ -373,7 +374,7 @@ static unsigned long quick_pit_calibrate(void)
 			goto success;
 		}
 	}
-	printk("Fast TSC calibration failed\n");
+	pr_err("Fast TSC calibration failed\n");
 	return 0;
 
 success:
@@ -392,7 +393,7 @@ static unsigned long quick_pit_calibrate(void)
 	 */
 	delta *= PIT_TICK_RATE;
 	do_div(delta, i*256*1000);
-	printk("Fast TSC calibration using PIT\n");
+	pr_info("Fast TSC calibration using PIT\n");
 	return delta;
 }
 
@@ -487,9 +488,8 @@ unsigned long native_calibrate_tsc(void)
 		 * use the reference value, as it is more precise.
 		 */
 		if (delta >= 90 && delta <= 110) {
-			printk(KERN_INFO
-			       "TSC: PIT calibration matches %s. %d loops\n",
-			       hpet ? "HPET" : "PMTIMER", i + 1);
+			pr_info("PIT calibration matches %s. %d loops\n",
+				hpet ? "HPET" : "PMTIMER", i + 1);
 			return tsc_ref_min;
 		}
 
@@ -511,38 +511,36 @@ unsigned long native_calibrate_tsc(void)
 	 */
 	if (tsc_pit_min == ULONG_MAX) {
 		/* PIT gave no useful value */
-		printk(KERN_WARNING "TSC: Unable to calibrate against PIT\n");
+		pr_warn("Unable to calibrate against PIT\n");
 
 		/* We don't have an alternative source, disable TSC */
 		if (!hpet && !ref1 && !ref2) {
-			printk("TSC: No reference (HPET/PMTIMER) available\n");
+			pr_notice("No reference (HPET/PMTIMER) available\n");
 			return 0;
 		}
 
 		/* The alternative source failed as well, disable TSC */
 		if (tsc_ref_min == ULONG_MAX) {
-			printk(KERN_WARNING "TSC: HPET/PMTIMER calibration "
-			       "failed.\n");
+			pr_warn("HPET/PMTIMER calibration failed\n");
 			return 0;
 		}
 
 		/* Use the alternative source */
-		printk(KERN_INFO "TSC: using %s reference calibration\n",
-		       hpet ? "HPET" : "PMTIMER");
+		pr_info("using %s reference calibration\n",
+			hpet ? "HPET" : "PMTIMER");
 
 		return tsc_ref_min;
 	}
 
 	/* We don't have an alternative source, use the PIT calibration value */
 	if (!hpet && !ref1 && !ref2) {
-		printk(KERN_INFO "TSC: Using PIT calibration value\n");
+		pr_info("Using PIT calibration value\n");
 		return tsc_pit_min;
 	}
 
 	/* The alternative source failed, use the PIT calibration value */
 	if (tsc_ref_min == ULONG_MAX) {
-		printk(KERN_WARNING "TSC: HPET/PMTIMER calibration failed. "
-		       "Using PIT calibration\n");
+		pr_warn("HPET/PMTIMER calibration failed. Using PIT calibration.\n");
 		return tsc_pit_min;
 	}
 
@@ -551,9 +549,9 @@ unsigned long native_calibrate_tsc(void)
 	 * the PIT value as we know that there are PMTIMERs around
 	 * running at double speed. At least we let the user know:
 	 */
-	printk(KERN_WARNING "TSC: PIT calibration deviates from %s: %lu %lu.\n",
-	       hpet ? "HPET" : "PMTIMER", tsc_pit_min, tsc_ref_min);
-	printk(KERN_INFO "TSC: Using PIT calibration value\n");
+	pr_warn("PIT calibration deviates from %s: %lu %lu\n",
+		hpet ? "HPET" : "PMTIMER", tsc_pit_min, tsc_ref_min);
+	pr_info("Using PIT calibration value\n");
 	return tsc_pit_min;
 }
 
@@ -785,7 +783,7 @@ void mark_tsc_unstable(char *reason)
 		tsc_unstable = 1;
 		sched_clock_stable = 0;
 		disable_sched_clock_irqtime();
-		printk(KERN_INFO "Marking TSC unstable due to %s\n", reason);
+		pr_info("Marking TSC unstable due to %s\n", reason);
 		/* Change only the rating, when not registered */
 		if (clocksource_tsc.mult)
 			clocksource_mark_unstable(&clocksource_tsc);
@@ -912,9 +910,9 @@ static void tsc_refine_calibration_work(struct work_struct *work)
 		goto out;
 
 	tsc_khz = freq;
-	printk(KERN_INFO "Refined TSC clocksource calibration: "
-		"%lu.%03lu MHz.\n", (unsigned long)tsc_khz / 1000,
-					(unsigned long)tsc_khz % 1000);
+	pr_info("Refined TSC clocksource calibration: %lu.%03lu MHz\n",
+		(unsigned long)tsc_khz / 1000,
+		(unsigned long)tsc_khz % 1000);
 
 out:
 	clocksource_register_khz(&clocksource_tsc, tsc_khz);
@@ -970,9 +968,9 @@ void __init tsc_init(void)
 		return;
 	}
 
-	printk("Detected %lu.%03lu MHz processor.\n",
-			(unsigned long)cpu_khz / 1000,
-			(unsigned long)cpu_khz % 1000);
+	pr_info("Detected %lu.%03lu MHz processor\n",
+		(unsigned long)cpu_khz / 1000,
+		(unsigned long)cpu_khz % 1000);
 
 	/*
 	 * Secondary CPUs do not run through tsc_init(), so set up

arch/x86/kernel/vm86_32.c

@@ -28,6 +28,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/capability.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
@@ -137,14 +139,14 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs)
 	local_irq_enable();
 
 	if (!current->thread.vm86_info) {
-		printk("no vm86_info: BAD\n");
+		pr_alert("no vm86_info: BAD\n");
 		do_exit(SIGSEGV);
 	}
 	set_flags(regs->pt.flags, VEFLAGS, X86_EFLAGS_VIF | current->thread.v86mask);
 	tmp = copy_vm86_regs_to_user(&current->thread.vm86_info->regs, regs);
 	tmp += put_user(current->thread.screen_bitmap, &current->thread.vm86_info->screen_bitmap);
 	if (tmp) {
-		printk("vm86: could not access userspace vm86_info\n");
+		pr_alert("could not access userspace vm86_info\n");
 		do_exit(SIGSEGV);
 	}
 

arch/x86/kernel/vsyscall_64.c

@@ -18,6 +18,8 @@
  *  use the vDSO.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/time.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -111,18 +113,13 @@ void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
 static void warn_bad_vsyscall(const char *level, struct pt_regs *regs,
 			      const char *message)
 {
-	static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST);
-	struct task_struct *tsk;
-
-	if (!show_unhandled_signals || !__ratelimit(&rs))
+	if (!show_unhandled_signals)
 		return;
 
-	tsk = current;
-
-	printk("%s%s[%d] %s ip:%lx cs:%lx sp:%lx ax:%lx si:%lx di:%lx\n",
-	       level, tsk->comm, task_pid_nr(tsk),
-	       message, regs->ip, regs->cs,
-	       regs->sp, regs->ax, regs->si, regs->di);
+	pr_notice_ratelimited("%s%s[%d] %s ip:%lx cs:%lx sp:%lx ax:%lx si:%lx di:%lx\n",
+			      level, current->comm, task_pid_nr(current),
+			      message, regs->ip, regs->cs,
+			      regs->sp, regs->ax, regs->si, regs->di);
 }
 
 static int addr_to_vsyscall_nr(unsigned long addr)

arch/x86/kernel/xsave.c

@@ -3,6 +3,9 @@
  *
  * Author: Suresh Siddha <suresh.b.siddha@intel.com>
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/bootmem.h>
 #include <linux/compat.h>
 #include <asm/i387.h>
@@ -162,7 +165,7 @@ int save_i387_xstate(void __user *buf)
 	BUG_ON(sig_xstate_size < xstate_size);
 
 	if ((unsigned long)buf % 64)
-		printk("save_i387_xstate: bad fpstate %p\n", buf);
+		pr_err("%s: bad fpstate %p\n", __func__, buf);
 
 	if (!used_math())
 		return 0;
@@ -422,7 +425,7 @@ static void __init xstate_enable_boot_cpu(void)
 	pcntxt_mask = eax + ((u64)edx << 32);
 
 	if ((pcntxt_mask & XSTATE_FPSSE) != XSTATE_FPSSE) {
-		printk(KERN_ERR "FP/SSE not shown under xsave features 0x%llx\n",
+		pr_err("FP/SSE not shown under xsave features 0x%llx\n",
 		       pcntxt_mask);
 		BUG();
 	}
@@ -445,9 +448,8 @@ static void __init xstate_enable_boot_cpu(void)
 
 	setup_xstate_init();
 
-	printk(KERN_INFO "xsave/xrstor: enabled xstate_bv 0x%llx, "
-	       "cntxt size 0x%x\n",
-	       pcntxt_mask, xstate_size);
+	pr_info("enabled xstate_bv 0x%llx, cntxt size 0x%x\n",
+		pcntxt_mask, xstate_size);
 }
 
 /*