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Linux Kernel

The mainline Linux kernel.

Recent Activity

Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-devfreq'
Rafael J. Wysocki

HID: let generic driver yield control iff specific driver has been enabled
Jiri Kosina: There are many situations where generic HID driver provides some basic level of support for certain device, but later this support (usually by implementing vendor-specific extensions of HID protocol) is extended and the support moved over to a separate (usually per-vendor) specific driver. This might bring a rather unpleasant suprise for users, as all of a sudden there is a new config option they have to enable in order to get any support for their device whatsoever, although previous kernel versions provided basic support through the generic driver.

"Yes, people use FOLL_FORCE ;)"
Linus Torvalds: This effectively reverts commit 8ee74a91ac30 ("proc: try to remove use of FOLL_FORCE entirely") It turns out that people do depend on FOLL_FORCE for the /proc/<pid>/mem case, and we're talking not just debuggers.

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Linus Torvalds

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32
Linus Torvalds

Activity Earlier In The Year

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds

Merge tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds

printk: use rcuidle console tracepoint
Sergey Senozhatsky: Use rcuidle console tracepoint because, apparently, it may be issued from an idle CPU: hw-breakpoint: Failed to enable monitor mode on CPU 0.

x86/mce/AMD: Make the init code more robust
Thomas Gleixner: If mce_device_init() fails then the mce device pointer is NULL and the AMD mce code happily dereferences it.

Merge tag 'drm-for-v4.10' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds

Merge tag 'docs-4.10' of git://git.lwn.net/linux
Linus Torvalds

kasan: support use-after-scope detection
Dmitry Vyukov: Gcc revision 241896 implements use-after-scope detection.

mfd: wm8994-core: Don't use managed regulator bulk get API
Viresh Kumar: The kernel WARNs and then crashes today if wm8994_device_init() fails after calling devm_regulator_bulk_get(). That happens because there are multiple devices involved here and the order in which managed resources are freed isn't correct. The regulators are added as children of wm8994->dev.

net: phy: dp83848: add dp83822 PHY support
Roger Quadros: This PHY has a compatible register set with DP83848x so add support for it.

Linux Kernel Release Tags

Linux 4.12-rc5
Linus Torvalds

Linux 4.12-rc4
Linus Torvalds

Linux 4.12-rc3
Linus Torvalds

Linux 4.12-rc2
Linus Torvalds

Linux 4.12-rc1
Linus Torvalds

Linux 4.11
Linus Torvalds

Linux 4.11-rc8
Linus Torvalds

Linux 4.11-rc7
Linus Torvalds

Linux 4.11-rc4
Linus Torvalds

Linux 4.11-rc2
Linus Torvalds

Most Popular This Year

net: phy: dp83848: add dp83822 PHY support
Roger Quadros: This PHY has a compatible register set with DP83848x so add support for it.

Merge branches 'pm-cpufreq-fixes' and 'pm-sleep-fixes'
Rafael J. Wysocki

bpf: fix samples to add fake KBUILD_MODNAME
Daniel Borkmann: Some of the sample files are causing issues when they are loaded with tc and cls_bpf, meaning tc bails out while trying to parse the resulting ELF file as program/map/etc sections are not present, which can be easily spotted with readelf(1). Currently, BPF samples are including some of the kernel headers and mid term we should change them to refrain from this, really.

proc: don't use FOLL_FORCE for reading cmdline and environment
Linus Torvalds: Now that Lorenzo cleaned things up and made the FOLL_FORCE users explicit, it becomes obvious how some of them don't really need FOLL_FORCE at all. So remove FOLL_FORCE from the proc code that reads the command line and arguments from user space. The mem_rw() function actually does want FOLL_FORCE, because gdd (and possibly many other debuggers) use it as a much more convenient version of PTRACE_PEEKDATA, but we should consider making the FOLL_FORCE part conditional on actually being a ptracer.

shmem: Fix link error if huge pages support is disabled
Geert Uytterhoeven: If CONFIG_TRANSPARENT_HUGE_PAGECACHE=n, HPAGE_PMD_NR evaluates to BUILD_BUG_ON(), and may cause (e.g.

mfd: wm8994-core: Don't use managed regulator bulk get API
Viresh Kumar: The kernel WARNs and then crashes today if wm8994_device_init() fails after calling devm_regulator_bulk_get(). That happens because there are multiple devices involved here and the order in which managed resources are freed isn't correct. The regulators are added as children of wm8994->dev.

kthread: initial support for delayed kthread work
Petr Mladek: We are going to use kthread_worker more widely and delayed works will be pretty useful. The implementation is inspired by workqueues.

kasan: support use-after-scope detection
Dmitry Vyukov: Gcc revision 241896 implements use-after-scope detection.

scripts/tags.sh: enable code completion in VIM
Mathieu Maret: Vim, with the omnicppcomplete(#1) plugin, can do code completion using information build by ctags.

{net, ib}/mlx5: Make cache line size determination at runtime
Daniel Jurgens: ARM 64B cache line systems have L1_CACHE_BYTES set to 128.

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