- 13 10月, 2007 1 次提交
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由 Satyam Sharma 提交于
* palinfo.c: palinfo_cpu_notifier is a CPU hotplug notifier_block, and can be marked __cpuinitdata, and the callback function palinfo_cpu_callback() itself can be marked __cpuinit. create_palinfo_proc_entries() is only called from __cpuinit callback or general __init code, therefore a candidate for __cpuinit itself. remove_palinfo_proc_entries() is only called from __cpuinit callback or general __exit code, therefore a candidate for __cpuexit. * salinfo.c: The CPU hotplug notifier_block can be __cpuinitdata. The callback salinfo_cpu_callback() is incorrectly marked __devinit -- it must be __cpuinit instead. * topology.c: cache_sysfs_init() is only called at device_initcall() time so marking it as __cpuinit is wrong and wasteful. It should be unconditionally __init. Also cleanup reference to hotplug notifier callback function from this function and replace with cache_add_dev(), which could also enable us to use other tricks to replace __cpuinit{data} annotations, as recently discussed on this list. cache_shared_cpu_map_setup() is only ever called from __cpuinit-marked functions hence both its definitions (SMP or !SMP) are candidates for __cpuinit itself. Also all_cpu_cache_info can be __cpuinitdata because only referenced from __cpuinit code. Signed-off-by: NSatyam Sharma <satyam@infradead.org> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 12 10月, 2007 39 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [ZLIB]: Fix external builds of zlib_inflate code. [TG3]: Fix APE induced regression [SKY2]: version 1.19 [SKY2]: use netdevice stats struct [SKY2]: fiber advertise bits initialization (trivial) [SKY2]: fix power settings on Yukon XL [SKY2]: ethtool register reserved area blackout
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David S. Miller 提交于
Move zlib_inflate_blob() out into it's own source file, infutil.c, so that things like the powerpc zImage builder in arch/powerpc/boot/Makefile don't end up trying to compile it. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Matt Carlson 提交于
This patch fixes a bug caused by the recent APE support added for 5761 devices. Signed-off-by: NMatt Carlson <mcarlson@broadcom.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stephen Hemminger 提交于
Update version to keep track of new changes. Signed-off-by: NStephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stephen Hemminger 提交于
Use builtin statistics structure from net device. Signed-off-by: NStephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stephen Hemminger 提交于
Put initialization in sequential order (same as other constants). Signed-off-by: NStephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stephen Hemminger 提交于
Make sure PCI register for PHY power gets set correctly. Signed-off-by: NStephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stephen Hemminger 提交于
Make sure and not dump reserved areas of device space. Touching some of these causes machine check exceptions on boards like D-Link DGE-550SX. Coding note, used a complex switch statement rather than bitmap because it is easier to relate the block values to the documentation rather than looking at a encoded bitmask. Signed-off-by: NStephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc由 Linus Torvalds 提交于
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits) [POWERPC] Add memchr() to the bootwrapper [POWERPC] Implement logging of unhandled signals [POWERPC] Add legacy serial support for OPB with flattened device tree [POWERPC] Use 1TB segments [POWERPC] XilinxFB: Allow fixed framebuffer base address [POWERPC] XilinxFB: Add support for custom screen resolution [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters [POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci [POWERPC] 4xx: Kilauea defconfig file [POWERPC] 4xx: Kilauea DTS [POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x [POWERPC] 4xx: Add AMCC 405EX support to cputable.c [POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers [POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig [POWERPC] 85xx: Killed <asm/mpc85xx.h> [POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS [POWERPC] 85xx: Convert mpc8560ads to the new CPM binding. [POWERPC] mpc8272ads: Remove muram from the CPM reg property. [POWERPC] Make clockevents work on PPC601 processors ... Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.
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由 Linus Torvalds 提交于
* 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] sata_mv: more S/G fixes
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由 Jeff Garzik 提交于
* corruption fix: we only want the lower 16 bits of length (0 == 64kb) * ditto: the upper layer sets max-phys-segments to LIBATA_MAX_PRD, so we must reset it to own hw-specific length. * delete unused mv_fill_sg() return value Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Jeff Garzik 提交于
Signed-off-by: NJeff Garzik <jgarzik@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Gibson 提交于
This adds a memchr() implementation to the bootwrapper, which will be needed when libfdt is merged in. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olof Johansson 提交于
Implement show_unhandled_signals sysctl + support to print when a process is killed due to unhandled signals just as i386 and x86_64 does. Default to having it off, unlike x86 that defaults on. Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Valentine Barshak 提交于
Currently find_legacy_serial_ports() can find no serial ports on the OPB with flattened device tree. Thus no legacy boot console can be initialized. Just the early udbg console works, which is initialized with udbg_init_44x_as1 on the UART's physical address specified in kernel config. This happens because we look for ns16750 serial devices only and expect opb node to have a device type property. This patch makes it look for ns16550-compatible devices and use of_device_is_compatible() for opb in case device type is not specified. Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Paul Mackerras 提交于
This makes the kernel use 1TB segments for all kernel mappings and for user addresses of 1TB and above, on machines which support them (currently POWER5+, POWER6 and PA6T). We detect that the machine supports 1TB segments by looking at the ibm,processor-segment-sizes property in the device tree. We don't currently use 1TB segments for user addresses < 1T, since that would effectively prevent 32-bit processes from using huge pages unless we also had a way to revert to using 256MB segments. That would be possible but would involve extra complications (such as keeping track of which segment size was used when HPTEs were inserted) and is not addressed here. Parts of this patch were originally written by Ben Herrenschmidt. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Grant Likely 提交于
Allow a fixed framebuffer address to be assigned to the framebuffer device instead of allocating the framebuffer from the consistent memory pool. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Grant Likely 提交于
Some custom implementations of the xilinx fb can use resolutions other than 640x480. This patch allows the resolution to be specified in the device tree or the xilinx_platform_data structure. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Grant Likely 提交于
The call to xilinxfb_assign is getting unwieldy when adding features to the Xilinx framebuffer driver. Change xilinxfb_assign() to accept a pointer to a xilinxfb_platform_data structure to prepare for adding additition configuration options. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Valentine Barshak 提交于
Add 64-bit physical address support to setup_indirect_pci(). Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com> Acked-by: NKumar Gala <galak@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (87 commits) mlx4_core: Fix section mismatches IPoIB: Allow setting policy to ignore multicast groups IB/mthca: Mark error paths as unlikely() in post_srq_recv functions IB/ipath: Minor fix to ordering of freeing and zeroing of tid pages. IB/ipath: Remove redundant link state checks IB/ipath: Fix IB_EVENT_PORT_ERR event IB/ipath: Better handling of unexpected GPIO interrupts IB/ipath: Maintain active time on all chips IB/ipath: Fix QHT7040 serial number check IB/ipath: Indicate a couple of chip bugs to userspace IB/ipath: iba6110 rev4 no longer needs recv header overrun workaround IB/ipath: Use counters in ipath_poll and cleanup interrupts in ipath_close IB/ipath: Remove duplicate copy of LMC IB/ipath: Add ability to set the LMC via the sysfs debugging interface IB/ipath: Optimize completion queue entry insertion and polling IB/ipath: Implement IB_EVENT_QP_LAST_WQE_REACHED IB/ipath: Generate flush CQE when QP is in error state IB/ipath: Remove redundant code IB/ipath: Future proof eeprom checksum code (contents reading) IB/ipath: UC RDMA WRITE with IMMEDIATE doesn't send the immediate ...
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6由 Linus Torvalds 提交于
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (867 commits) [SKY2]: status polling loop (post merge) [NET]: Fix NAPI completion handling in some drivers. [TCP]: Limit processing lost_retrans loop to work-to-do cases [TCP]: Fix lost_retrans loop vs fastpath problems [TCP]: No need to re-count fackets_out/sacked_out at RTO [TCP]: Extract tcp_match_queue_to_sack from sacktag code [TCP]: Kill almost unused variable pcount from sacktag [TCP]: Fix mark_head_lost to ignore R-bit when trying to mark L [TCP]: Add bytes_acked (ABC) clearing to FRTO too [IPv6]: Update setsockopt(IPV6_MULTICAST_IF) to support RFC 3493, try2 [NETFILTER]: x_tables: add missing ip6t_modulename aliases [NETFILTER]: nf_conntrack_tcp: fix connection reopening [QETH]: fix qeth_main.c [NETLINK]: fib_frontend build fixes [IPv6]: Export userland ND options through netlink (RDNSS support) [9P]: build fix with !CONFIG_SYSCTL [NET]: Fix dev_put() and dev_hold() comments [NET]: make netlink user -> kernel interface synchronious [NET]: unify netlink kernel socket recognition [NET]: cleanup 3rd argument in netlink_sendskb ... Fix up conflicts manually in Documentation/feature-removal-schedule.txt and my new least favourite crap, the "mod_devicetable" support in the files include/linux/mod_devicetable.h and scripts/mod/file2alias.c. (The latter files seem to be explicitly _designed_ to get conflicts when different subsystems work with them - that have an absolutely horrid lack of subsystem separation!) Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://ftp.linux-mips.org/pub/scm/upstream-linus由 Linus Torvalds 提交于
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (80 commits) [MIPS] tlbex.c: Cleanup __init usage. [MIPS] WRPPMC serial support move to platform device [MIPS] R1: Fix hazard barriers to make kernels work on R2 also. [MIPS] VPE: reimplement ELF loader. [MIPS] cleanup WRPPMC include files [MIPS] Add BUG_ON assertion for attempt to run kernel on the wrong CPU type. [MIPS] SMP: Use ISO C struct initializer for local structs. [MIPS] SMP: Kill useless casts. [MIPS] Kill num_online_cpus() loops. [MIPS] SMP: Implement smp_call_function_mask(). [MIPS] Make facility to convert CPU types to strings generally available. [MIPS] Convert list of CPU types from #define to enum. [MIPS] Optimize get_unaligned / put_unaligned implementations. [MIPS] checkfiles: Fix "need space after that ','" errors. [MIPS] Fix "no space between function name and open parenthesis" warnings. [MIPS] Allow hardwiring of the CPU type to a single type for optimization. [MIPS] tlbex: Size optimize code by declaring a few functions inline. [MIPS] pg-r4k.c: Dump the generated code [MIPS] Cobalt: Remove cobalt_machine_power_off() [MIPS] Cobalt: Move reset port definition to arch/mips/cobalt/reset.c ...
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git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (24 commits) ide: use only ->set_pio_mode method for programming PIO modes (take 2) sis5513: don't change UDMA settings when programming PIO it8213/piix/slc90e66: don't change DMA settings when programming PIO alim15x3: PIO mode setup fixes siimage: fix ->set_pio_mode method to select PIO data transfer cs5520: don't enable VDMA in ->speedproc sc1200: remove redundant warning message from sc1200_tune_chipset() ide-pmac: PIO mode setup fixes (take 3) icside: fix ->speedproc to return on unsupported modes (take 5) sgiioc4: use ide_tune_dma() amd74xx/via82cxxx: use ide_tune_dma() ide: add ide_set{_max}_pio() (take 4) ide: Kconfig face-lift ide: move ide_rate_filter() calls to the upper layer (take 2) sis5513: add ->udma_filter method for chipset_family >= ATA_133 ide: mode limiting fixes for user requested speed changes ide: add missing ide_rate_filter() calls to ->speedproc()-s ide: call udma_filter() before resorting to the UltraDMA mask ide: make jmicron match vendor and device class pdc202xx_new: switch to using pci_get_slot() (take 2) ...
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git://git.o-hand.com/linux-rpurdie-leds由 Linus Torvalds 提交于
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds: leds: Update Cobalt Qube series front LED support leds: Add Cobalt Raq series LEDs support leds: Rename leds-cobalt driver
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git://git.o-hand.com/linux-rpurdie-backlight由 Linus Torvalds 提交于
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight: backlight: Convert corgi backlight driver into a more generic driver backlight: Add Samsung LTV350QV LCD driver backlight: Fix cr_bllcd allocations and error paths backlight/leds: Make two structs static
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6由 Linus Torvalds 提交于
* 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6: drivers/firmware: const-ify DMI API and internals
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git://git.kernel.dk/data/git/linux-2.6-block由 Linus Torvalds 提交于
* 'block-2.6.24' of git://git.kernel.dk/data/git/linux-2.6-block: (37 commits) [BLOCK] Fix failing compile with BLK_DEV_IO_TRACE=n compat_ioctl: move floppy handlers to block/compat_ioctl.c compat_ioctl: move cdrom handlers to block/compat_ioctl.c compat_ioctl: move BLKPG handling to block/compat_ioctl.c compat_ioctl: move hdio calls to block/compat_ioctl.c compat_ioctl: handle blk_trace ioctls compat_ioctl: add compat_blkdev_driver_ioctl() compat_ioctl: move common block ioctls to compat_blkdev_ioctl Sysace: Don't enable IRQ until after interrupt handler is registered Sysace: sparse fixes Sysace: Minor coding convention fixup drivers/block/umem: use DRIVER_NAME where appropriate drivers/block/umem: trim trailing whitespace drivers/block/umem: minor cleanups drivers/block/umem: use dev_printk() drivers/block/umem: move private include away from include/linux Sysace: Labels in C code should not be indented. Sysace: Add of_platform_bus binding Sysace: Move IRQ handler registration to occur after FSM is initialized Sysace: minor rework and cleanup changes ...
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git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: [AVR32] Fix random segfault with preemption [AVR32] Don't use __builtin_xchg() [AVR32] ngw100 i2c-gpio tweaks [AVR32] Ignore a few irrelevant syscalls [AVR32] SMC configuration in clock cycles [AVR32] Drop support for redundant "keepinitrd" boot-time parm. [AVR32] Make dma_sync_*_for_cpu no-ops [AVR32] Remove unneeded 8K alignment of .text section [AVR32] Kill a few hardcoded constants in vmlinux.lds [AVR32] rename vmlinux.lds [AVR32] fix command line parsing in early_parse_fbmem [AVR32] checkstack support [AVR32] Wire up USBA device [AVR32] add multidrive support for pio driver [AVR32] /sys/kernel/debug/at32ap_clk [AVR32] Move AT32_PM_BASE definition into pm.h
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git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (74 commits) Blackfin serial driver: pending a unique anomaly id, tie the break flood issue to ANOMALY_05000230 blackfin enable arbitary speed serial setting Blackfin arch: Remove cruft - CONFIG_DEBUG_SERIAL_EARLY_INIT and DEBUG_KERNEL_START Blackfin arch: fix typo in register name Blackfin arch: trim the Blackfin arch MAINTAINERS list Blackfin arch: fix bug libstdc++ calling writev with an iovec containing { NULL, 0 } fails on Blackfin Blackfin arch: Export strcpy - occasionally get module link failures otherwise Blackfin arch: the load address is not safe to point to as a workaround for ANOMALY 05000281 Blackfin arch: show_mem can not be marked as init, since it is called during OOM condition Blackfin arch: flush/inv the correct range when using write back cache and fix bugs find by dmacopy Blackfin arch: update kgdb patch Blackfin arch: Comply with revised Anomaly Workarounds for BF533 05000311 and BF561 05000323 Blackfin arch: Print out debug info, as early as possible Blackfin arch: Enable earlyprintk earlier - so any error after our interrupt tables are set up will print out Blackfin arch: fix endless loop bug when a double fault happens Blackfin arch: Initial patch to add earlyprintk support Blackfin arch: add TWIx_REGBASE and SPIx_REGBASE to specific CPU header files, use the new REGBASE for board platform resources Blackfin arch: modify the insX/outsX and dma_insX/dma_outsX to be compatible with other archs Blackfin arch: add more common defines for output sections Blackfin arch: cleanup IO and DMA_IO API function definitions according to other arches ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb由 Linus Torvalds 提交于
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (310 commits) V4L/DVB (6316): Change list_for_each+list_entry to list_for_each_entry V4L/DVB (6315): pvrusb2: Change list_for_each+list_entry to list_for_each_entry V4L/DVB (6314): saa7134: Replace list_for_each+list_entry with list_for_each_entry V4L/DVB (6313): ivtv: Replace list_for_each+list_entry with list_for_each_entry V4L/DVB (6312): cx88: Replace list_for_each+list_entry with list_for_each_entry V4L/DVB (6311): dvb: Replace list_for_each+list_entry with list_for_each_entry V4L/DVB (6308): V4L: zc0301, remove bad usage of ERESTARTSYS V4L/DVB (6307): V4L: w9968cf, remove bad usage of ERESTARTSYS V4L/DVB (6306): Few clenups for saa7134 resume code V4L/DVB (6305): V4L: videobuf-core.c avoid NULL dereferences in videobuf-core V4L/DVB (6301): pvrusb: Update DEBUGIFC sysfs to kernel 2.6.13+ V4L/DVB (6300): CodingStyle cleanup V4L/DVB (6299): dvb: Add dependencies for VIDEOBUF_DVB V4L/DVB (6297): cx23885: remove wrong Kconfig selection of VIDEOBUF V4L/DVB (6296): dib0700: add support for AverMedia DVB-T Express card V4L/DVB (6295): saa7134: add autodetection for KWorld ATSC-115 V4L/DVB (6293): V4L: convert struct class_device to struct device V4L/DVB (6292): videobuf_core init always require callback implementation V4L/DVB (6291): Fix: avoid oops on some SMP machines V4L/DVB (6290): remove videobuf_set_pci_ops ...
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git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (67 commits) mmc: don't use weight32() pxamci: support arbitrary block size sdio: make the IRQ thread more resilient in the presence of bad states sdio: fix IRQ diagnostic message sdhci: remove old dma module params sdhci: add SDHCI_QUIRK_BROKEN_DMA quirk sdhci: remove DMA capability check from controller's PCI Class reg sdhci: fix a typo mmc: Disabler for Ricoh MMC controller sdio: adaptive interrupt polling mmc: pxamci: add SDIO card interrupt reporting capability mmc: pxamci: set proper buswidth capabilities according to PXA flavor mmc: pxamci: set proper block capabilities according to PXA flavor mmc: pxamci: better pending IRQ determination arm: i.MX/MX1 SDHC implements SD cards read-only switch read-back mmc: add led trigger mmc_spi host driver MMC core learns about SPI MMC/SD card driver learns SPI MMC headers learn about SPI ...
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由 Stephen Hemminger 提交于
Handle the corner case where budget is exhausted correctly. And save unnecessary read of index register. Signed-off-by: NStephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
In order for the list handling in net_rx_action() to be correct, drivers must follow certain rules as stated by this comment in net_rx_action(): /* Drivers must not modify the NAPI state if they * consume the entire weight. In such cases this code * still "owns" the NAPI instance and therefore can * move the instance around on the list at-will. */ A few drivers do not do this because they mix the budget checks with reading hardware state, resulting in crashes like the one reported by takano@axe-inc.co.jp. BNX2 and TG3 are taken care of here, SKY2 fix is from Stephen Hemminger. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ilpo Järvinen 提交于
This addition of lost_retrans_low to tcp_sock might be unnecessary, it's not clear how often lost_retrans worker is executed when there wasn't work to do. Signed-off-by: NIlpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ilpo Järvinen 提交于
Detection implemented with lost_retrans must work also when fastpath is taken, yet most of the queue is skipped including (very likely) those retransmitted skb's we're interested in. This problem appeared when the hints got added, which removed a need to always walk over the whole write queue head. Therefore decicion for the lost_retrans worker loop entry must be separated from the sacktag processing more than it was necessary before. It turns out to be problematic to optimize the worker loop very heavily because ack_seqs of skb may have a number of discontinuity points. Maybe similar approach as currently is implemented could be attempted but that's becoming more and more complex because the trend is towards less skb walking in sacktag marker. Trying a simple work until all rexmitted skbs heve been processed approach. Maybe after(highest_sack_end_seq, tp->high_seq) checking is not sufficiently accurate and causes entry too often in no-work-to-do cases. Since that's not known, I've separated solution to that from this patch. Noticed because of report against a related problem from TAKANO Ryousei <takano@axe-inc.co.jp>. He also provided a patch to that part of the problem. This patch includes solution to it (though this patch has to use somewhat different placement). TAKANO's description and patch is available here: http://marc.info/?l=linux-netdev&m=119149311913288&w=2 ...In short, TAKANO's problem is that end_seq the loop is using not necessarily the largest SACK block's end_seq because the current ACK may still have higher SACK blocks which are later by the loop. Signed-off-by: NIlpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ilpo Järvinen 提交于
Both sacked_out and fackets_out are directly known from how parameter. Since fackets_out is accurate, there's no need for recounting (sacked_out was previously unnecessarily counted in the loop anyway). Signed-off-by: NIlpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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