android_kernel_motorola_sm6375

A-Team_Digital_Solutions/android_kernel_motorola_sm6375

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Filename	Latest commit message	Latest commit date
Valentin Schneider ce48c457b9 cpu/hotplug: Mute hotplug lockdep during init Since we've had: commit `cb538267ea` ("jump_label/lockdep: Assert we hold the hotplug lock for _cpuslocked() operations") we've been getting some lockdep warnings during init, such as on HiKey960: [ 0.820495] WARNING: CPU: 4 PID: 0 at kernel/cpu.c:316 lockdep_assert_cpus_held+0x3c/0x48 [ 0.820498] Modules linked in: [ 0.820509] CPU: 4 PID: 0 Comm: swapper/4 Tainted: G S 4.20.0-rc5-00051-g4cae42a #34 [ 0.820511] Hardware name: HiKey960 (DT) [ 0.820516] pstate: 600001c5 (nZCv dAIF -PAN -UAO) [ 0.820520] pc : lockdep_assert_cpus_held+0x3c/0x48 [ 0.820523] lr : lockdep_assert_cpus_held+0x38/0x48 [ 0.820526] sp : ffff00000a9cbe50 [ 0.820528] x29: ffff00000a9cbe50 x28: 0000000000000000 [ 0.820533] x27: 00008000b69e5000 x26: ffff8000bff4cfe0 [ 0.820537] x25: ffff000008ba69e0 x24: 0000000000000001 [ 0.820541] x23: ffff000008fce000 x22: ffff000008ba70c8 [ 0.820545] x21: 0000000000000001 x20: 0000000000000003 [ 0.820548] x19: ffff00000a35d628 x18: ffffffffffffffff [ 0.820552] x17: 0000000000000000 x16: 0000000000000000 [ 0.820556] x15: ffff00000958f848 x14: 455f3052464d4d34 [ 0.820559] x13: 00000000769dde98 x12: ffff8000bf3f65a8 [ 0.820564] x11: 0000000000000000 x10: ffff00000958f848 [ 0.820567] x9 : ffff000009592000 x8 : ffff00000958f848 [ 0.820571] x7 : ffff00000818ffa0 x6 : 0000000000000000 [ 0.820574] x5 : 0000000000000000 x4 : 0000000000000001 [ 0.820578] x3 : 0000000000000000 x2 : 0000000000000001 [ 0.820582] x1 : 00000000ffffffff x0 : 0000000000000000 [ 0.820587] Call trace: [ 0.820591] lockdep_assert_cpus_held+0x3c/0x48 [ 0.820598] static_key_enable_cpuslocked+0x28/0xd0 [ 0.820606] arch_timer_check_ool_workaround+0xe8/0x228 [ 0.820610] arch_timer_starting_cpu+0xe4/0x2d8 [ 0.820615] cpuhp_invoke_callback+0xe8/0xd08 [ 0.820619] notify_cpu_starting+0x80/0xb8 [ 0.820625] secondary_start_kernel+0x118/0x1d0 We've also had a similar warning in sched_init_smp() for every asymmetric system that would enable the sched_asym_cpucapacity static key, although that was singled out in: commit `40fa3780ba` ("sched/core: Take the hotplug lock in sched_init_smp()") Those warnings are actually harmless, since we cannot have hotplug operations at the time they appear. Instead of starting to sprinkle useless hotplug lock operations in the init codepaths, mute the warnings until they start warning about real problems. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: cai@gmx.us Cc: daniel.lezcano@linaro.org Cc: dietmar.eggemann@arm.com Cc: linux-arm-kernel@lists.infradead.org Cc: longman@redhat.com Cc: marc.zyngier@arm.com Cc: mark.rutland@arm.com Link: https://lkml.kernel.org/r/1545243796-23224-2-git-send-email-valentin.schneider@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2019-01-21 11:18:53 +01:00
arch	openrisc: remove unneeded code in arch/openrisc/Makefile	2019-01-17 23:42:59 +09:00
block	block: fix kerneldoc comment for blk_attempt_plug_merge()	2019-01-09 15:29:08 -07:00
certs
crypto
Documentation	Devicetree fixes for v5.0:	2019-01-18 06:15:28 +12:00
drivers	First 5.0 rc pull request	2019-01-18 17:17:20 +12:00
firmware	kbuild: change filechk to surround the given command with { }	2019-01-06 09:46:51 +09:00
fs	AFS fixes	2019-01-18 06:27:24 +12:00
include	sched/wake_q: Document wake_q_add()	2019-01-21 11:15:36 +01:00
init	kbuild: Disable LD_DEAD_CODE_DATA_ELIMINATION with ftrace & GCC <= 4.7	2019-01-14 10:37:09 +09:00
ipc
kernel	cpu/hotplug: Mute hotplug lockdep during init	2019-01-21 11:18:53 +01:00
lib	sbitmap: Protect swap_lock from hardirq	2019-01-15 16:29:57 +12:00
LICENSES
mm	mm/mmu_notifier: mm/rmap.c: Fix a mmu_notifier range bug in try_to_unmap_one	2019-01-10 02:58:21 -08:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-01-16 05:13:36 +12:00
samples	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-01-16 05:13:36 +12:00
scripts	kbuild: remove unused baseprereq	2019-01-14 12:19:40 +09:00
security	Merge branch 'fixes-v5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2019-01-17 16:54:58 +12:00
sound	remove dma_zalloc_coherent	2019-01-12 10:52:40 -08:00
tools	tools/memory-model: Make scripts take "-j" abbreviation for "--jobs"	2019-01-21 11:07:04 +01:00
usr
virt	KVM: validate userspace input in kvm_clear_dirty_log_protect()	2019-01-11 18:38:07 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild	kbuild: use assignment instead of define ... endef for filechk_* rules	2019-01-06 10:22:35 +09:00
Kconfig
MAINTAINERS	Staging driver fixes for 5.0-rc2	2019-01-14 05:49:35 +12:00
Makefile	kbuild: mark prepare0 as PHONY to fix external module build	2019-01-17 23:42:59 +09:00
README

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.