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Ensure that the cited expression is not a function call or an
assignment to reduce the chance of false positives.
Slightly modify the warning message to indicate another source
of false positves.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Thomas Gleixner:
- Make lazy TLB mode even lazier to avoid pointless switch_mm()
operations, which reduces CPU load by 1-2% for memcache workloads
- Small cleanups and improvements all over the place
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Remove redundant check for kmem_cache_create()
arm/asm/tlb.h: Fix build error implicit func declaration
x86/mm/tlb: Make clear_asid_other() static
x86/mm/tlb: Skip atomic operations for 'init_mm' in switch_mm_irqs_off()
x86/mm/tlb: Always use lazy TLB mode
x86/mm/tlb: Only send page table free TLB flush to lazy TLB CPUs
x86/mm/tlb: Make lazy TLB mode lazier
x86/mm/tlb: Restructure switch_mm_irqs_off()
x86/mm/tlb: Leave lazy TLB mode at page table free time
mm: Allocate the mm_cpumask (mm->cpu_bitmap[]) dynamically based on nr_cpu_ids
x86/mm: Add TLB purge to free pmd/pte page interfaces
ioremap: Update pgtable free interfaces with addr
x86/mm: Disable ioremap free page handling on x86-PAE
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Thomas Gleixner:
"Trivial cleanups and improvements"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/UV: Remove redundant check of p == q
x86/platform/olpc: Use PTR_ERR_OR_ZERO()
x86/platform/UV: Mark memblock related init code and data correctly
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5e-updates-2018-08-10
This series provides the following updates to mlx5e netdevice driver.
1) First 4 patches extends the support for ethtool rxnfc flow steering
- Added ipv6 support
- l4 proto ip field for both ip6 and ip4
2) Next 4 patches, reorganizing flow steering structures and declaration into
one header file, and add two Kconfig flags to allow disabling/enabling mlx5
netdevice rx flow steering at compile time:
CONFIG_MLX5_EN_ARFS for en_arfs.c
CONFIG_MLX5_EN_RXNFC for en_fs_ehtool.c
3) More kconfig flags dependencies
- vxlan.c depends on CONFIG_VXLAN
- clock.c depends on CONFIG_PTP_1588_CLOCK
4) Reorganize the Makefile
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cache QoS (RDT/CAR) updates from Thomas Gleixner:
"Add support for pseudo-locked cache regions.
Cache Allocation Technology (CAT) allows on certain CPUs to isolate a
region of cache and 'lock' it. Cache pseudo-locking builds on the fact
that a CPU can still read and write data pre-allocated outside its
current allocated area on cache hit. With cache pseudo-locking data
can be preloaded into a reserved portion of cache that no application
can fill, and from that point on will only serve cache hits. The cache
pseudo-locked memory is made accessible to user space where an
application can map it into its virtual address space and thus have a
region of memory with reduced average read latency.
The locking is not perfect and gets totally screwed by WBINDV and
similar mechanisms, but it provides a reasonable enhancement for
certain types of latency sensitive applications.
The implementation extends the current CAT mechanism and provides a
generally useful exclusive CAT mode on which it builds the extra
pseude-locked regions"
* 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (45 commits)
x86/intel_rdt: Disable PMU access
x86/intel_rdt: Fix possible circular lock dependency
x86/intel_rdt: Make CPU information accessible for pseudo-locked regions
x86/intel_rdt: Support restoration of subset of permissions
x86/intel_rdt: Fix cleanup of plr structure on error
x86/intel_rdt: Move pseudo_lock_region_clear()
x86/intel_rdt: Limit C-states dynamically when pseudo-locking active
x86/intel_rdt: Support L3 cache performance event of Broadwell
x86/intel_rdt: More precise L2 hit/miss measurements
x86/intel_rdt: Create character device exposing pseudo-locked region
x86/intel_rdt: Create debugfs files for pseudo-locking testing
x86/intel_rdt: Create resctrl debug area
x86/intel_rdt: Ensure RDT cleanup on exit
x86/intel_rdt: Resctrl files reflect pseudo-locked information
x86/intel_rdt: Support creation/removal of pseudo-locked region
x86/intel_rdt: Pseudo-lock region creation/removal core
x86/intel_rdt: Discover supported platforms via prefetch disable bits
x86/intel_rdt: Add utilities to test pseudo-locked region possibility
x86/intel_rdt: Split resource group removal in two
x86/intel_rdt: Enable entering of pseudo-locksetup mode
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/hyper-v update from Thomas Gleixner:
"Add fast hypercall support for guest running on the Microsoft HyperV(isor)"
* 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/hyper-v: Fix wrong merge conflict resolution
x86/hyper-v: Check for VP_INVAL in hyperv_flush_tlb_others()
x86/hyper-v: Check cpumask_to_vpset() return value in hyperv_flush_tlb_others_ex()
x86/hyper-v: Trace PV IPI send
x86/hyper-v: Use cheaper HVCALL_SEND_IPI hypercall when possible
x86/hyper-v: Use 'fast' hypercall for HVCALL_SEND_IPI
x86/hyper-v: Implement hv_do_fast_hypercall16
x86/hyper-v: Use cheaper HVCALL_FLUSH_VIRTUAL_ADDRESS_{LIST,SPACE} hypercalls when possible
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[Why]
A null pointer deference can occur if crtc is null in
amdgpu_dm_crtc_handle_crc_irq. This can happen if get_crtc_by_otg_inst
returns NULL during dm_crtc_high_irq, leading to a hang in some IGT
test cases.
[How]
Check that CRTC is non-null before accessing its fields.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[why]
Older ASICs require both phys_id and connector_id
to execute bios command table. If we are not passing the
right connector_id - it can lead to a black screen.
[how]
Set connector_obj_id when executing vbios command table
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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[why]
We are disabling clock source while other pipes are still using
it, because we don't verify the number of pipes that share it.
[how]
- Adding a function in resources to return the number of pipes
sharing the clock source.
- Checking that no one is sharing the clock source before disabling
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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[why]
HDMI and DVI share the same PHY clock and single link
DVI and HDMI both use 4 lanes, so they should be allowed
to be sharing the same clock source if all other parameters
are satisfied.
[how]
Change a check for general DVI to Dual DVI.
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[Why]
DOUBLE_BUFFER_EN bit is getting cleared before enable blanking.
That leads to CRTC_BLANK_DATA_EN is getting updated immediately.
[How]
Get DOUBLE_BUFFER_EN bit set, the same as DCE110.
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Entity init should after ring init, as the entity's sched_rq's initialization
is in ring init.
SWDEV-161495
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 dump printing cleanup from Thomas Gleixner:
"Clean up the show_opcodes() printout so nested dumps can be properly
differentiated"
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Avoid pr_cont() in show_opcodes()
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Entity init should after ring init, as the entity's sched_rq's initialization
is in ring init.
SWDEV-161495
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Setup psp firmware loading for VCN, and make VCN block
booting from tmr mac address.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Add VCN support in PSP driver
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Add the new firmware id for VCN into the enum
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Update tmr mc address with firmware loading address
which is returned from PSP firmware
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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amdgpu IP blocks booting need Trust Memory Region(tmr) mc address
of its firmware which is loaded by PSP
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Likun Gao <likun.gao@amd.com>
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu updates from Thomas Gleixner:
"Two small updates for the CPU code:
- Improve NUMA emulation
- Add the EPT_AD CPU feature bit"
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpufeatures: Add EPT_AD feature bit
x86/numa_emulation: Introduce uniform split capability
x86/numa_emulation: Fix emulated-to-physical node mapping
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Thomas Gleixner:
"Trival cleanups"
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/iommu: Use NULL instead of 0
x86/platform/pcspeaker: Use PTR_ERR_OR_ZERO() to fix ptr_ret.cocci warning
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 build cleanup from Thomas Gleixner:
"Remove a stale quirk for a no longer supported GCC version"
* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/build: Remove old -funit-at-a-time GCC quirk
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In the quest to remove all stack VLA usage from the kernel[1], this
switches to using a maximum size and adds a sanity check.
[1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Shawn Guo <shawnguo@kernel.org>
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In the quest to remove all stack VLA usage from the kernel[1], this
sets the buffer to maximum size and adds a sanity check.
[1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
Cc: David Airlie <airlied@linux.ie>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Thomas Gleixner:
"The lowlevel and ASM code updates for x86:
- Make stack trace unwinding more reliable
- ASM instruction updates for better code generation
- Various cleanups"
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry/64: Add two more instruction suffixes
x86/asm/64: Use 32-bit XOR to zero registers
x86/build/vdso: Simplify 'cmd_vdso2c'
x86/build/vdso: Remove unused vdso-syms.lds
x86/stacktrace: Enable HAVE_RELIABLE_STACKTRACE for the ORC unwinder
x86/unwind/orc: Detect the end of the stack
x86/stacktrace: Do not fail for ORC with regs on stack
x86/stacktrace: Clarify the reliable success paths
x86/stacktrace: Remove STACKTRACE_DUMP_ONCE
x86/stacktrace: Do not unwind after user regs
x86/asm: Use CC_SET/CC_OUT in percpu_cmpxchg8b_double() to micro-optimize code generation
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 boot updates from Thomas Gleixner:
"Boot code updates for x86:
- Allow to skip a given amount of huge pages for address layout
randomization on the kernel command line to prevent regressions in
the huge page allocation with small memory sizes
- Various cleanups"
* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Use CC_SET()/CC_OUT() instead of open coding it
x86/boot/KASLR: Make local variable mem_limit static
x86/boot/KASLR: Skip specified number of 1GB huge pages when doing physical randomization (KASLR)
x86/boot/KASLR: Add two new functions for 1GB huge pages handling
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic update from Thomas Gleixner:
"Trivial cleanups of the APIC related code"
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic: Trivial coding style fixes
x86/vector: Merge allocate_vector() into assign_vector_locked()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"The timers departement more or less proudly presents:
- More Y2038 timekeeping work mostly in the core code. The work is
slowly, but steadily targeting the actuall syscalls.
- Enhanced timekeeping suspend/resume support by utilizing
clocksources which do not stop during suspend, but are otherwise
not the main timekeeping clocksources.
- Make NTP adjustmets more accurate and immediate when the frequency
is set directly and not incrementally.
- Sanitize the overrung handing of posix timers
- A new timer driver for Mediatek SoCs
- The usual pile of fixes and updates all over the place"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
clockevents: Warn if cpu_all_mask is used as cpumask
tick/broadcast-hrtimer: Use cpu_possible_mask for ce_broadcast_hrtimer
clocksource/drivers/arm_arch_timer: Fix bogus cpu_all_mask usage
clocksource: ti-32k: Remove CLOCK_SOURCE_SUSPEND_NONSTOP flag
timers: Clear timer_base::must_forward_clk with timer_base::lock held
clocksource/drivers/sprd: Register one always-on timer to compensate suspend time
clocksource/drivers/timer-mediatek: Add support for system timer
clocksource/drivers/timer-mediatek: Convert the driver to timer-of
clocksource/drivers/timer-mediatek: Use specific prefix for GPT
clocksource/drivers/timer-mediatek: Rename mtk_timer to timer-mediatek
clocksource/drivers/timer-mediatek: Add system timer bindings
clocksource/drivers: Set clockevent device cpumask to cpu_possible_mask
time: Introduce one suspend clocksource to compensate the suspend time
time: Fix extra sleeptime injection when suspend fails
timekeeping/ntp: Constify some function arguments
ntp: Use kstrtos64 for s64 variable
ntp: Remove redundant arguments
timer: Fix coding style
ktime: Provide typesafe ktime_to_ns()
hrtimer: Improve kernel message printing
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf update from Thomas Gleixner:
"The perf crowd presents:
Kernel updates:
- Removal of jprobes
- Cleanup and consolidatation the handling of kprobes
- Cleanup and consolidation of hardware breakpoints
- The usual pile of fixes and updates to PMUs and event descriptors
Tooling updates:
- Updates and improvements all over the place. Nothing outstanding,
just the (good) boring incremental grump work"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (103 commits)
perf trace: Do not require --no-syscalls to suppress strace like output
perf bpf: Include uapi/linux/bpf.h from the 'perf trace' script's bpf.h
perf tools: Allow overriding MAX_NR_CPUS at compile time
perf bpf: Show better message when failing to load an object
perf list: Unify metric group description format with PMU event description
perf vendor events arm64: Update ThunderX2 implementation defined pmu core events
perf cs-etm: Generate branch sample for CS_ETM_TRACE_ON packet
perf cs-etm: Generate branch sample when receiving a CS_ETM_TRACE_ON packet
perf cs-etm: Support dummy address value for CS_ETM_TRACE_ON packet
perf cs-etm: Fix start tracing packet handling
perf build: Fix installation directory for eBPF
perf c2c report: Fix crash for empty browser
perf tests: Fix indexing when invoking subtests
perf trace: Beautify the AF_INET & AF_INET6 'socket' syscall 'protocol' args
perf trace beauty: Add beautifiers for 'socket''s 'protocol' arg
perf trace beauty: Do not print NULL strarray entries
perf beauty: Add a generator for IPPROTO_ socket's protocol constants
tools include uapi: Grab a copy of linux/in.h
perf tests: Fix complex event name parsing
perf evlist: Fix error out while applying initial delay and LBR
...
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The last argument to mlx5_add_flow_rules passes the number of
destinations in the struct pointed to by the dest arg. Change the name
to better reflect this fact.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Reorganize the Makefile and group files together according to their
functionality and importance.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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lib/clock.c includes clock related functions which require ptp support.
Thus compile out lib/clock.c and add the needed function stubs in case
kconfig CONFIG_PTP_1588_CLOCK is off.
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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When vxlan is not enabled by kernel, no need to enable it in mlx5.
Compile out lib/vxlan.c if CONFIG_VXLAN is not selected.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
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Move flow steering declarations and definitions into the dedicated
en/fs.h header file
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
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Add new mlx5 Kconfig flag to allow selecting accelerated flow steering
support, and compile out en_arfs.c if not selected.
Move arfs declarations and definitions to en/fs.h header file.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
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Add new mlx5 Kconfig flag to allow selecting ethtool rx nfc support,
and compile out en_fs_ehtool.c if not selected.
Add en/fs.h header file to host all steering declarations and
definitions.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
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Move ethool rxnfc callback into en_fs_etthool file where they belong.
This will allow us to make many ethtool fs related helper functions
static.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Add support for l4 proto ip field in ethtool flow steering.
Example: Redirect icmpv6 to rx queue #2
ethtool -U eth0 flow-type ip6 l4proto 58 action 2
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Add ip6 support for ethtool flow steering.
New supported flow types: ip6|tcp6|udp6|
Supported fields: src-ip|dst-ip|src-port|dst-port
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Add function 1 DMA alias quirk for Marvell 88SS9183 PCIe SSD Controller.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=42679#c134
Reported-and-tested-by: Felix Blüthner <f.bluethner@mailbox.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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dm-crypt should only increase device limits, it should not decrease them.
This fixes a bug where the user could creates a crypt device with 1024
sector size on the top of scsi device that had 4096 logical block size.
The limit 4096 would be lost and the user could incorrectly send
1024-I/Os to the crypt device.
Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking/atomics update from Thomas Gleixner:
"The locking, atomics and memory model brains delivered:
- A larger update to the atomics code which reworks the ordering
barriers, consolidates the atomic primitives, provides the new
atomic64_fetch_add_unless() primitive and cleans up the include
hell.
- Simplify cmpxchg() instrumentation and add instrumentation for
xchg() and cmpxchg_double().
- Updates to the memory model and documentation"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (48 commits)
locking/atomics: Rework ordering barriers
locking/atomics: Instrument cmpxchg_double*()
locking/atomics: Instrument xchg()
locking/atomics: Simplify cmpxchg() instrumentation
locking/atomics/x86: Reduce arch_cmpxchg64*() instrumentation
tools/memory-model: Rename litmus tests to comply to norm7
tools/memory-model/Documentation: Fix typo, smb->smp
sched/Documentation: Update wake_up() & co. memory-barrier guarantees
locking/spinlock, sched/core: Clarify requirements for smp_mb__after_spinlock()
sched/core: Use smp_mb() in wake_woken_function()
tools/memory-model: Add informal LKMM documentation to MAINTAINERS
locking/atomics/Documentation: Describe atomic_set() as a write operation
tools/memory-model: Make scripts executable
tools/memory-model: Remove ACCESS_ONCE() from model
tools/memory-model: Remove ACCESS_ONCE() from recipes
locking/memory-barriers.txt/kokr: Update Korean translation to fix broken DMA vs. MMIO ordering example
MAINTAINERS: Add Daniel Lustig as an LKMM reviewer
tools/memory-model: Fix ISA2+pooncelock+pooncelock+pombonce name
tools/memory-model: Add litmus test for full multicopy atomicity
locking/refcount: Always allow checked forms
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug update from Thomas Gleixner:
"A trivial name fix for the hotplug state machine"
* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Clarify CPU hotplug step name for timers
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Have a parsing function per flow type, that converts from ethtool rx flow
spec to mlx5 flow spec.
Will be useful to add support for ip6 ethtool flow steering in the
next patch.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Have a ethtool rx flow spec validation helper function per flow type.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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The Davinci remoteproc driver does not support error recovery at
present, so mark the corresponding remoteproc flag appropriately
so that the debugfs flag shows the value as 'disabled' by default.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Lockdep reports deadlock for following locking scenario in ife action:
Task one:
1) Executes ife action update.
2) Takes tcfa_lock.
3) Waits on ife_mod_lock which is already taken by task two.
Task two:
1) Executes any path that obtains ife_mod_lock without disabling bh (any
path that takes ife_mod_lock while holding tcfa_lock has bh disabled) like
loading a meta module, or creating new action.
2) Takes ife_mod_lock.
3) Task is preempted by rate estimator timer.
4) Timer callback waits on tcfa_lock which is taken by task one.
In described case tasks deadlock because they take same two locks in
different order. To prevent potential deadlock reported by lockdep, always
disable bh when obtaining ife_mod_lock.
Lockdep warning:
[ 508.101192] =====================================================
[ 508.107708] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
[ 508.114728] 4.18.0-rc8+ #646 Not tainted
[ 508.119050] -----------------------------------------------------
[ 508.125559] tc/5460 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire:
[ 508.132025] 000000005a938c68 (ife_mod_lock){++++}, at: find_ife_oplist+0x1e/0xc0 [act_ife]
[ 508.140996]
and this task is already holding:
[ 508.147548] 00000000d46f6c56 (&(&p->tcfa_lock)->rlock){+.-.}, at: tcf_ife_init+0x6ae/0xf40 [act_ife]
[ 508.157371] which would create a new lock dependency:
[ 508.162828] (&(&p->tcfa_lock)->rlock){+.-.} -> (ife_mod_lock){++++}
[ 508.169572]
but this new dependency connects a SOFTIRQ-irq-safe lock:
[ 508.178197] (&(&p->tcfa_lock)->rlock){+.-.}
[ 508.178201]
... which became SOFTIRQ-irq-safe at:
[ 508.189771] _raw_spin_lock+0x2c/0x40
[ 508.193906] est_fetch_counters+0x41/0xb0
[ 508.198391] est_timer+0x83/0x3c0
[ 508.202180] call_timer_fn+0x16a/0x5d0
[ 508.206400] run_timer_softirq+0x399/0x920
[ 508.210967] __do_softirq+0x157/0x97d
[ 508.215102] irq_exit+0x152/0x1c0
[ 508.218888] smp_apic_timer_interrupt+0xc0/0x4e0
[ 508.223976] apic_timer_interrupt+0xf/0x20
[ 508.228540] cpuidle_enter_state+0xf8/0x5d0
[ 508.233198] do_idle+0x28a/0x350
[ 508.236881] cpu_startup_entry+0xc7/0xe0
[ 508.241296] start_secondary+0x2e8/0x3f0
[ 508.245678] secondary_startup_64+0xa5/0xb0
[ 508.250347]
to a SOFTIRQ-irq-unsafe lock: (ife_mod_lock){++++}
[ 508.256531]
... which became SOFTIRQ-irq-unsafe at:
[ 508.267279] ...
[ 508.267283] _raw_write_lock+0x2c/0x40
[ 508.273653] register_ife_op+0x118/0x2c0 [act_ife]
[ 508.278926] do_one_initcall+0xf7/0x4d9
[ 508.283214] do_init_module+0x18b/0x44e
[ 508.287521] load_module+0x4167/0x5730
[ 508.291739] __do_sys_finit_module+0x16d/0x1a0
[ 508.296654] do_syscall_64+0x7a/0x3f0
[ 508.300788] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 508.306302]
other info that might help us debug this:
[ 508.315286] Possible interrupt unsafe locking scenario:
[ 508.322771] CPU0 CPU1
[ 508.327681] ---- ----
[ 508.332604] lock(ife_mod_lock);
[ 508.336300] local_irq_disable();
[ 508.342608] lock(&(&p->tcfa_lock)->rlock);
[ 508.349793] lock(ife_mod_lock);
[ 508.355990] <Interrupt>
[ 508.358974] lock(&(&p->tcfa_lock)->rlock);
[ 508.363803]
*** DEADLOCK ***
[ 508.370715] 2 locks held by tc/5460:
[ 508.374680] #0: 00000000e27e4fa4 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x583/0x7b0
[ 508.383366] #1: 00000000d46f6c56 (&(&p->tcfa_lock)->rlock){+.-.}, at: tcf_ife_init+0x6ae/0xf40 [act_ife]
[ 508.393648]
the dependencies between SOFTIRQ-irq-safe lock and the holding lock:
[ 508.403505] -> (&(&p->tcfa_lock)->rlock){+.-.} ops: 1001553 {
[ 508.409646] HARDIRQ-ON-W at:
[ 508.413136] _raw_spin_lock_bh+0x34/0x40
[ 508.419059] gnet_stats_start_copy_compat+0xa2/0x230
[ 508.426021] gnet_stats_start_copy+0x16/0x20
[ 508.432333] tcf_action_copy_stats+0x95/0x1d0
[ 508.438735] tcf_action_dump_1+0xb0/0x4e0
[ 508.444795] tcf_action_dump+0xca/0x200
[ 508.450673] tcf_exts_dump+0xd9/0x320
[ 508.456392] fl_dump+0x1b7/0x4a0 [cls_flower]
[ 508.462798] tcf_fill_node+0x380/0x530
[ 508.468601] tfilter_notify+0xdf/0x1c0
[ 508.474404] tc_new_tfilter+0x84a/0xc90
[ 508.480270] rtnetlink_rcv_msg+0x5bd/0x7b0
[ 508.486419] netlink_rcv_skb+0x184/0x220
[ 508.492394] netlink_unicast+0x31b/0x460
[ 508.507411] netlink_sendmsg+0x3fb/0x840
[ 508.513390] sock_sendmsg+0x7b/0xd0
[ 508.518907] ___sys_sendmsg+0x4c6/0x610
[ 508.524797] __sys_sendmsg+0xd7/0x150
[ 508.530510] do_syscall_64+0x7a/0x3f0
[ 508.536201] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 508.543301] IN-SOFTIRQ-W at:
[ 508.546834] _raw_spin_lock+0x2c/0x40
[ 508.552522] est_fetch_counters+0x41/0xb0
[ 508.558571] est_timer+0x83/0x3c0
[ 508.563912] call_timer_fn+0x16a/0x5d0
[ 508.569699] run_timer_softirq+0x399/0x920
[ 508.575840] __do_softirq+0x157/0x97d
[ 508.581538] irq_exit+0x152/0x1c0
[ 508.586882] smp_apic_timer_interrupt+0xc0/0x4e0
[ 508.593533] apic_timer_interrupt+0xf/0x20
[ 508.599686] cpuidle_enter_state+0xf8/0x5d0
[ 508.605895] do_idle+0x28a/0x350
[ 508.611147] cpu_startup_entry+0xc7/0xe0
[ 508.617097] start_secondary+0x2e8/0x3f0
[ 508.623029] secondary_startup_64+0xa5/0xb0
[ 508.629245] INITIAL USE at:
[ 508.632686] _raw_spin_lock_bh+0x34/0x40
[ 508.638557] gnet_stats_start_copy_compat+0xa2/0x230
[ 508.645491] gnet_stats_start_copy+0x16/0x20
[ 508.651719] tcf_action_copy_stats+0x95/0x1d0
[ 508.657992] tcf_action_dump_1+0xb0/0x4e0
[ 508.663937] tcf_action_dump+0xca/0x200
[ 508.669716] tcf_exts_dump+0xd9/0x320
[ 508.675337] fl_dump+0x1b7/0x4a0 [cls_flower]
[ 508.681650] tcf_fill_node+0x380/0x530
[ 508.687366] tfilter_notify+0xdf/0x1c0
[ 508.693031] tc_new_tfilter+0x84a/0xc90
[ 508.698820] rtnetlink_rcv_msg+0x5bd/0x7b0
[ 508.704869] netlink_rcv_skb+0x184/0x220
[ 508.710758] netlink_unicast+0x31b/0x460
[ 508.716627] netlink_sendmsg+0x3fb/0x840
[ 508.722510] sock_sendmsg+0x7b/0xd0
[ 508.727931] ___sys_sendmsg+0x4c6/0x610
[ 508.733729] __sys_sendmsg+0xd7/0x150
[ 508.739346] do_syscall_64 +0x7a/0x3f0
[ 508.744943] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 508.751930] }
[ 508.753964] ... key at: [<ffffffff916b3e20>] __key.61145+0x0/0x40
[ 508.760946] ... acquired at:
[ 508.764294] _raw_read_lock+0x2f/0x40
[ 508.768513] find_ife_oplist+0x1e/0xc0 [act_ife]
[ 508.773692] tcf_ife_init+0x82f/0xf40 [act_ife]
[ 508.778785] tcf_action_init_1+0x510/0x750
[ 508.783468] tcf_action_init+0x1e8/0x340
[ 508.787938] tcf_action_add+0xc5/0x240
[ 508.792241] tc_ctl_action+0x203/0x2a0
[ 508.796550] rtnetlink_rcv_msg+0x5bd/0x7b0
[ 508.801200] netlink_rcv_skb+0x184/0x220
[ 508.805674] netlink_unicast+0x31b/0x460
[ 508.810129] netlink_sendmsg+0x3fb/0x840
[ 508.814611] sock_sendmsg+0x7b/0xd0
[ 508.818665] ___sys_sendmsg+0x4c6/0x610
[ 508.823029] __sys_sendmsg+0xd7/0x150
[ 508.827246] do_syscall_64+0x7a/0x3f0
[ 508.831483] entry_SYSCALL_64_after_hwframe+0x49/0xbe
the dependencies between the lock to be acquired
[ 508.838945] and SOFTIRQ-irq-unsafe lock:
[ 508.851177] -> (ife_mod_lock){++++} ops: 95 {
[ 508.855920] HARDIRQ-ON-W at:
[ 508.859478] _raw_write_lock+0x2c/0x40
[ 508.865264] register_ife_op+0x118/0x2c0 [act_ife]
[ 508.872071] do_one_initcall+0xf7/0x4d9
[ 508.877947] do_init_module+0x18b/0x44e
[ 508.883819] load_module+0x4167/0x5730
[ 508.889595] __do_sys_finit_module+0x16d/0x1a0
[ 508.896043] do_syscall_64+0x7a/0x3f0
[ 508.901734] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 508.908827] HARDIRQ-ON-R at:
[ 508.912359] _raw_read_lock+0x2f/0x40
[ 508.918043] find_ife_oplist+0x1e/0xc0 [act_ife]
[ 508.924692] tcf_ife_init+0x82f/0xf40 [act_ife]
[ 508.931252] tcf_action_init_1+0x510/0x750
[ 508.937393] tcf_action_init+0x1e8/0x340
[ 508.943366] tcf_action_add+0xc5/0x240
[ 508.949130] tc_ctl_action+0x203/0x2a0
[ 508.954922] rtnetlink_rcv_msg+0x5bd/0x7b0
[ 508.961024] netlink_rcv_skb+0x184/0x220
[ 508.966970] netlink_unicast+0x31b/0x460
[ 508.972915] netlink_sendmsg+0x3fb/0x840
[ 508.978859] sock_sendmsg+0x7b/0xd0
[ 508.984400] ___sys_sendmsg+0x4c6/0x610
[ 508.990264] __sys_sendmsg+0xd7/0x150
[ 508.995952] do_syscall_64+0x7a/0x3f0
[ 509.001643] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 509.008722] SOFTIRQ-ON-W at:\
[ 509.012242] _raw_write_lock+0x2c/0x40
[ 509.018013] register_ife_op+0x118/0x2c0 [act_ife]
[ 509.024841] do_one_initcall+0xf7/0x4d9
[ 509.030720] do_init_module+0x18b/0x44e
[ 509.036604] load_module+0x4167/0x5730
[ 509.042397] __do_sys_finit_module+0x16d/0x1a0
[ 509.048865] do_syscall_64+0x7a/0x3f0
[ 509.054551] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 509.061636] SOFTIRQ-ON-R at:
[ 509.065145] _raw_read_lock+0x2f/0x40
[ 509.070854] find_ife_oplist+0x1e/0xc0 [act_ife]
[ 509.077515] tcf_ife_init+0x82f/0xf40 [act_ife]
[ 509.084051] tcf_action_init_1+0x510/0x750
[ 509.090172] tcf_action_init+0x1e8/0x340
[ 509.096124] tcf_action_add+0xc5/0x240
[ 509.101891] tc_ctl_action+0x203/0x2a0
[ 509.107671] rtnetlink_rcv_msg+0x5bd/0x7b0
[ 509.113811] netlink_rcv_skb+0x184/0x220
[ 509.119768] netlink_unicast+0x31b/0x460
[ 509.125716] netlink_sendmsg+0x3fb/0x840
[ 509.131668] sock_sendmsg+0x7b/0xd0
[ 509.137167] ___sys_sendmsg+0x4c6/0x610
[ 509.143010] __sys_sendmsg+0xd7/0x150
[ 509.148718] do_syscall_64+0x7a/0x3f0
[ 509.154443] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 509.161533] INITIAL USE at:
[ 509.164956] _raw_read_lock+0x2f/0x40
[ 509.170574] find_ife_oplist+0x1e/0xc0 [act_ife]
[ 509.177134] tcf_ife_init+0x82f/0xf40 [act_ife]
[ 509.183619] tcf_action_init_1+0x510/0x750
[ 509.189674] tcf_action_init+0x1e8/0x340
[ 509.195534] tcf_action_add+0xc5/0x240
[ 509.201229] tc_ctl_action+0x203/0x2a0
[ 509.206920] rtnetlink_rcv_msg+0x5bd/0x7b0
[ 509.212936] netlink_rcv_skb+0x184/0x220
[ 509.218818] netlink_unicast+0x31b/0x460
[ 509.224699] netlink_sendmsg+0x3fb/0x840
[ 509.230581] sock_sendmsg+0x7b/0xd0
[ 509.235984] ___sys_sendmsg+0x4c6/0x610
[ 509.241791] __sys_sendmsg+0xd7/0x150
[ 509.247425] do_syscall_64+0x7a/0x3f0
[ 509.253007] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 509.259975] }
[ 509.261998] ... key at: [<ffffffffc1554258>] ife_mod_lock+0x18/0xffffffffffff8dc0 [act_ife]
[ 509.271569] ... acquired at:
[ 509.274912] _raw_read_lock+0x2f/0x40
[ 509.279134] find_ife_oplist+0x1e/0xc0 [act_ife]
[ 509.284324] tcf_ife_init+0x82f/0xf40 [act_ife]
[ 509.289425] tcf_action_init_1+0x510/0x750
[ 509.294068] tcf_action_init+0x1e8/0x340
[ 509.298553] tcf_action_add+0xc5/0x240
[ 509.302854] tc_ctl_action+0x203/0x2a0
[ 509.307153] rtnetlink_rcv_msg+0x5bd/0x7b0
[ 509.311805] netlink_rcv_skb+0x184/0x220
[ 509.316282] netlink_unicast+0x31b/0x460
[ 509.320769] netlink_sendmsg+0x3fb/0x840
[ 509.325248] sock_sendmsg+0x7b/0xd0
[ 509.329290] ___sys_sendmsg+0x4c6/0x610
[ 509.333687] __sys_sendmsg+0xd7/0x150
[ 509.337902] do_syscall_64+0x7a/0x3f0
[ 509.342116] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 509.349601]
stack backtrace:
[ 509.354663] CPU: 6 PID: 5460 Comm: tc Not tainted 4.18.0-rc8+ #646
[ 509.361216] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017
Fixes: ef6980b6becb ("introduce IFE action")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:
====================
pull request: bluetooth-next 2018-08-13
There was one pretty bad bug that slipped into the MediaTek HCI driver
in the last bluetooth-next pull request. Would it be possible to get
this one-liner fix pulled to net-next before you make your first 4.19
pull request for Linus? Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Thomas Gleixner:
- Cleanup and improvement of NUMA balancing
- Refactoring and improvements to the PELT (Per Entity Load Tracking)
code
- Watchdog simplification and related cleanups
- The usual pile of small incremental fixes and improvements
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
watchdog: Reduce message verbosity
stop_machine: Reflow cpu_stop_queue_two_works()
sched/numa: Move task_numa_placement() closer to numa_migrate_preferred()
sched/numa: Use group_weights to identify if migration degrades locality
sched/numa: Update the scan period without holding the numa_group lock
sched/numa: Remove numa_has_capacity()
sched/numa: Modify migrate_swap() to accept additional parameters
sched/numa: Remove unused task_capacity from 'struct numa_stats'
sched/numa: Skip nodes that are at 'hoplimit'
sched/debug: Reverse the order of printing faults
sched/numa: Use task faults only if numa_group is not yet set up
sched/numa: Set preferred_node based on best_cpu
sched/numa: Simplify load_too_imbalanced()
sched/numa: Evaluate move once per node
sched/numa: Remove redundant field
sched/debug: Show the sum wait time of a task group
sched/fair: Remove #ifdefs from scale_rt_capacity()
sched/core: Remove get_cpu() from sched_fork()
sched/cpufreq: Clarify sugov_get_util()
sched/sysctl: Remove unused sched_time_avg_ms sysctl
...
|
