mirror of https://gitee.com/openkylin/linux.git
1011130 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Andreas Roeseler
|
e542d29ca8 |
icmp: standardize naming of RFC 8335 PROBE constants
The current definitions of constants for PROBE, currently defined only in the net-next kernel branch, are inconsistent, with some beginning with ICMP and others with simply EXT. This patch attempts to standardize the naming conventions of the constants for PROBE before their release into a stable Kernel, and to update the relevant definitions in net/ipv4/icmp.c. Similarly, the definitions for the code field (previously ICMP_EXT_MAL_QUERY, etc) use the same prefixes as the type field. This patch adds _CODE_ to the prefix to clarify the distinction of these constants. Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com> Acked-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20210427153635.2591-1-andreas.a.roeseler@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
|
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Linus Torvalds
|
16b3d0cf5b |
Scheduler updates for this cycle are:
- Clean up SCHED_DEBUG: move the decades old mess of sysctl, procfs and debugfs interfaces
to a unified debugfs interface.
- Signals: Allow caching one sigqueue object per task, to improve performance & latencies.
- Improve newidle_balance() irq-off latencies on systems with a large number of CPU cgroups.
- Improve energy-aware scheduling
- Improve the PELT metrics for certain workloads
- Reintroduce select_idle_smt() to improve load-balancing locality - but without the previous
regressions
- Add 'scheduler latency debugging': warn after long periods of pending need_resched. This
is an opt-in feature that requires the enabling of the LATENCY_WARN scheduler feature,
or the use of the resched_latency_warn_ms=xx boot parameter.
- CPU hotplug fixes for HP-rollback, and for the 'fail' interface. Fix remaining
balance_push() vs. hotplug holes/races
- PSI fixes, plus allow /proc/pressure/ files to be written by CAP_SYS_RESOURCE tasks as well
- Fix/improve various load-balancing corner cases vs. capacity margins
- Fix sched topology on systems with NUMA diameter of 3 or above
- Fix PF_KTHREAD vs to_kthread() race
- Minor rseq optimizations
- Misc cleanups, optimizations, fixes and smaller updates
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
- Clean up SCHED_DEBUG: move the decades old mess of sysctl, procfs and
debugfs interfaces to a unified debugfs interface.
- Signals: Allow caching one sigqueue object per task, to improve
performance & latencies.
- Improve newidle_balance() irq-off latencies on systems with a large
number of CPU cgroups.
- Improve energy-aware scheduling
- Improve the PELT metrics for certain workloads
- Reintroduce select_idle_smt() to improve load-balancing locality -
but without the previous regressions
- Add 'scheduler latency debugging': warn after long periods of pending
need_resched. This is an opt-in feature that requires the enabling of
the LATENCY_WARN scheduler feature, or the use of the
resched_latency_warn_ms=xx boot parameter.
- CPU hotplug fixes for HP-rollback, and for the 'fail' interface. Fix
remaining balance_push() vs. hotplug holes/races
- PSI fixes, plus allow /proc/pressure/ files to be written by
CAP_SYS_RESOURCE tasks as well
- Fix/improve various load-balancing corner cases vs. capacity margins
- Fix sched topology on systems with NUMA diameter of 3 or above
- Fix PF_KTHREAD vs to_kthread() race
- Minor rseq optimizations
- Misc cleanups, optimizations, fixes and smaller updates
* tag 'sched-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (61 commits)
cpumask/hotplug: Fix cpu_dying() state tracking
kthread: Fix PF_KTHREAD vs to_kthread() race
sched/debug: Fix cgroup_path[] serialization
sched,psi: Handle potential task count underflow bugs more gracefully
sched: Warn on long periods of pending need_resched
sched/fair: Move update_nohz_stats() to the CONFIG_NO_HZ_COMMON block to simplify the code & fix an unused function warning
sched/debug: Rename the sched_debug parameter to sched_verbose
sched,fair: Alternative sched_slice()
sched: Move /proc/sched_debug to debugfs
sched,debug: Convert sysctl sched_domains to debugfs
debugfs: Implement debugfs_create_str()
sched,preempt: Move preempt_dynamic to debug.c
sched: Move SCHED_DEBUG sysctl to debugfs
sched: Don't make LATENCYTOP select SCHED_DEBUG
sched: Remove sched_schedstats sysctl out from under SCHED_DEBUG
sched/numa: Allow runtime enabling/disabling of NUMA balance without SCHED_DEBUG
sched: Use cpu_dying() to fix balance_push vs hotplug-rollback
cpumask: Introduce DYING mask
cpumask: Make cpu_{online,possible,present,active}() inline
rseq: Optimise rseq_get_rseq_cs() and clear_rseq_cs()
...
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Linus Torvalds
|
42dec9a936 |
Perf events changes in this cycle were:
- Improve Intel uncore PMU support:
- Parse uncore 'discovery tables' - a new hardware capability enumeration method
introduced on the latest Intel platforms. This table is in a well-defined PCI
namespace location and is read via MMIO. It is organized in an rbtree.
These uncore tables will allow the discovery of standard counter blocks, but
fancier counters still need to be enumerated explicitly.
- Add Alder Lake support
- Improve IIO stacks to PMON mapping support on Skylake servers
- Add Intel Alder Lake PMU support - which requires the introduction of 'hybrid' CPUs
and PMUs. Alder Lake is a mix of Golden Cove ('big') and Gracemont ('small' - Atom derived)
cores.
The CPU-side feature set is entirely symmetrical - but on the PMU side there's
core type dependent PMU functionality.
- Reduce data loss with CPU level hardware tracing on Intel PT / AUX profiling, by
fixing the AUX allocation watermark logic.
- Improve ring buffer allocation on NUMA systems
- Put 'struct perf_event' into their separate kmem_cache pool
- Add support for synchronous signals for select perf events. The immediate motivation
is to support low-overhead sampling-based race detection for user-space code. The
feature consists of the following main changes:
- Add thread-only event inheritance via perf_event_attr::inherit_thread, which limits
inheritance of events to CLONE_THREAD.
- Add the ability for events to not leak through exec(), via perf_event_attr::remove_on_exec.
- Allow the generation of SIGTRAP via perf_event_attr::sigtrap, extend siginfo with an u64
::si_perf, and add the breakpoint information to ::si_addr and ::si_perf if the event is
PERF_TYPE_BREAKPOINT.
The siginfo support is adequate for breakpoints right now - but the new field can be used
to introduce support for other types of metadata passed over siginfo as well.
- Misc fixes, cleanups and smaller updates.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf event updates from Ingo Molnar:
- Improve Intel uncore PMU support:
- Parse uncore 'discovery tables' - a new hardware capability
enumeration method introduced on the latest Intel platforms. This
table is in a well-defined PCI namespace location and is read via
MMIO. It is organized in an rbtree.
These uncore tables will allow the discovery of standard counter
blocks, but fancier counters still need to be enumerated
explicitly.
- Add Alder Lake support
- Improve IIO stacks to PMON mapping support on Skylake servers
- Add Intel Alder Lake PMU support - which requires the introduction of
'hybrid' CPUs and PMUs. Alder Lake is a mix of Golden Cove ('big')
and Gracemont ('small' - Atom derived) cores.
The CPU-side feature set is entirely symmetrical - but on the PMU
side there's core type dependent PMU functionality.
- Reduce data loss with CPU level hardware tracing on Intel PT / AUX
profiling, by fixing the AUX allocation watermark logic.
- Improve ring buffer allocation on NUMA systems
- Put 'struct perf_event' into their separate kmem_cache pool
- Add support for synchronous signals for select perf events. The
immediate motivation is to support low-overhead sampling-based race
detection for user-space code. The feature consists of the following
main changes:
- Add thread-only event inheritance via
perf_event_attr::inherit_thread, which limits inheritance of
events to CLONE_THREAD.
- Add the ability for events to not leak through exec(), via
perf_event_attr::remove_on_exec.
- Allow the generation of SIGTRAP via perf_event_attr::sigtrap,
extend siginfo with an u64 ::si_perf, and add the breakpoint
information to ::si_addr and ::si_perf if the event is
PERF_TYPE_BREAKPOINT.
The siginfo support is adequate for breakpoints right now - but the
new field can be used to introduce support for other types of
metadata passed over siginfo as well.
- Misc fixes, cleanups and smaller updates.
* tag 'perf-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits)
signal, perf: Add missing TRAP_PERF case in siginfo_layout()
signal, perf: Fix siginfo_t by avoiding u64 on 32-bit architectures
perf/x86: Allow for 8<num_fixed_counters<16
perf/x86/rapl: Add support for Intel Alder Lake
perf/x86/cstate: Add Alder Lake CPU support
perf/x86/msr: Add Alder Lake CPU support
perf/x86/intel/uncore: Add Alder Lake support
perf: Extend PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE
perf/x86/intel: Add Alder Lake Hybrid support
perf/x86: Support filter_match callback
perf/x86/intel: Add attr_update for Hybrid PMUs
perf/x86: Add structures for the attributes of Hybrid PMUs
perf/x86: Register hybrid PMUs
perf/x86: Factor out x86_pmu_show_pmu_cap
perf/x86: Remove temporary pmu assignment in event_init
perf/x86/intel: Factor out intel_pmu_check_extra_regs
perf/x86/intel: Factor out intel_pmu_check_event_constraints
perf/x86/intel: Factor out intel_pmu_check_num_counters
perf/x86: Hybrid PMU support for extra_regs
perf/x86: Hybrid PMU support for event constraints
...
|
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Linus Torvalds
|
03b2cd72aa |
Objtool updates in this cycle were:
- Standardize the crypto asm code so that it looks like compiler-generated
code to objtool - so that it can understand it. This enables unwinding
from crypto asm code - and also fixes the last known remaining objtool
warnings for LTO and more.
- x86 decoder fixes: clean up and fix the decoder, and also extend it a bit
- Misc fixes and cleanups
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- Standardize the crypto asm code so that it looks like compiler-
generated code to objtool - so that it can understand it. This
enables unwinding from crypto asm code - and also fixes the last
known remaining objtool warnings for LTO and more.
- x86 decoder fixes: clean up and fix the decoder, and also extend it a
bit
- Misc fixes and cleanups
* tag 'objtool-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/crypto: Enable objtool in crypto code
x86/crypto/sha512-ssse3: Standardize stack alignment prologue
x86/crypto/sha512-avx2: Standardize stack alignment prologue
x86/crypto/sha512-avx: Standardize stack alignment prologue
x86/crypto/sha256-avx2: Standardize stack alignment prologue
x86/crypto/sha1_avx2: Standardize stack alignment prologue
x86/crypto/sha_ni: Standardize stack alignment prologue
x86/crypto/crc32c-pcl-intel: Standardize jump table
x86/crypto/camellia-aesni-avx2: Unconditionally allocate stack buffer
x86/crypto/aesni-intel_avx: Standardize stack alignment prologue
x86/crypto/aesni-intel_avx: Fix register usage comments
x86/crypto/aesni-intel_avx: Remove unused macros
objtool: Support asm jump tables
objtool: Parse options from OBJTOOL_ARGS
objtool: Collate parse_options() users
objtool: Add --backup
objtool,x86: More ModRM sugar
objtool,x86: Rewrite ADD/SUB/AND
objtool,x86: Support %riz encodings
objtool,x86: Simplify register decode
...
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Linus Torvalds
|
0ff0edb550 |
Locking changes for this cycle were:
- rtmutex cleanup & spring cleaning pass that removes ~400 lines of code
- Futex simplifications & cleanups
- Add debugging to the CSD code, to help track down a tenacious race (or hw problem)
- Add lockdep_assert_not_held(), to allow code to require a lock to not be held,
and propagate this into the ath10k driver
- Misc LKMM documentation updates
- Misc KCSAN updates: cleanups & documentation updates
- Misc fixes and cleanups
- Fix locktorture bugs with ww_mutexes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
- rtmutex cleanup & spring cleaning pass that removes ~400 lines of
code
- Futex simplifications & cleanups
- Add debugging to the CSD code, to help track down a tenacious race
(or hw problem)
- Add lockdep_assert_not_held(), to allow code to require a lock to not
be held, and propagate this into the ath10k driver
- Misc LKMM documentation updates
- Misc KCSAN updates: cleanups & documentation updates
- Misc fixes and cleanups
- Fix locktorture bugs with ww_mutexes
* tag 'locking-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
kcsan: Fix printk format string
static_call: Relax static_call_update() function argument type
static_call: Fix unused variable warn w/o MODULE
locking/rtmutex: Clean up signal handling in __rt_mutex_slowlock()
locking/rtmutex: Restrict the trylock WARN_ON() to debug
locking/rtmutex: Fix misleading comment in rt_mutex_postunlock()
locking/rtmutex: Consolidate the fast/slowpath invocation
locking/rtmutex: Make text section and inlining consistent
locking/rtmutex: Move debug functions as inlines into common header
locking/rtmutex: Decrapify __rt_mutex_init()
locking/rtmutex: Remove pointless CONFIG_RT_MUTEXES=n stubs
locking/rtmutex: Inline chainwalk depth check
locking/rtmutex: Move rt_mutex_debug_task_free() to rtmutex.c
locking/rtmutex: Remove empty and unused debug stubs
locking/rtmutex: Consolidate rt_mutex_init()
locking/rtmutex: Remove output from deadlock detector
locking/rtmutex: Remove rtmutex deadlock tester leftovers
locking/rtmutex: Remove rt_mutex_timed_lock()
MAINTAINERS: Add myself as futex reviewer
locking/mutex: Remove repeated declaration
...
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Linus Torvalds
|
9a45da9270 |
RCU changes for this cycle were:
- Bitmap support for "N" as alias for last bit - kvfree_rcu updates - mm_dump_obj() updates. (One of these is to mm, but was suggested by Andrew Morton.) - RCU callback offloading update - Polling RCU grace-period interfaces - Realtime-related RCU updates - Tasks-RCU updates - Torture-test updates - Torture-test scripting updates - Miscellaneous fixes Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmCJCZERHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1hRjw/+Jkb9KvR9odPt/zqN/KPtIlburCUWgsFb 2zAlWN4uMocPAiXT2Xq58/8gqMkpyn7ZVZtL1tD8fZSvlwEr0U8Z74+/NdoQvYE+ kMXIYIuhIAGRyAupmzkriqN33iY+BSZPacX3u6ziPj57/0OZzbWVN/DAhbuvyLqG J/oL4PHCa7XAqXbf95rd5Zjs680QJ3CbTRh4nA8uHArzJmKZOaaHJ05Pxd1LpULe SJ+5p1GQnnwxd1HqmlHMDu/dW+2hE35BGykF8zi78je9OJXualDoM/6JpIYGhMNY 5qlhU55QYP1jzjuNGVZZUS4L77eS2/W7SpPAaTmMEy/SsVB59G8Kf22oNDpVaEqQ m+2ErqwaHvlkMjqnsx+JQbsOP0yCi2NZBoEPFdfk1H23E2deVlSDbxPso4Zb1oUD E12769kN+SWDytuLSOAe1PY/KXqmNUKjPZl1GDCGXL7HlCnWyggUDschTsKJa19O XXl+yCTGMUH4XAPSqavAKQbBjurqpT6i4zfooSH4TBtOHm1ExgZOUS8gglZ1JuJd q+uJdZIgS8BcGkGw/k1bYDWY5TA4Rjv3sAOKQL1PgYBl1t/yLK441mE7LI9gWOwz Crz7vlSxD6Jc2cYQeUVW0KPGt5aVd63Gd9HjpXxGkqYQSDRqYMCebHEAGagz+jj7 Nv/nOnf34Uc= =mpNt -----END PGP SIGNATURE----- Merge tag 'core-rcu-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: - Support for "N" as alias for last bit in bitmap parsing library (eg using syntax like "nohz_full=2-N") - kvfree_rcu updates - mm_dump_obj() updates. (One of these is to mm, but was suggested by Andrew Morton.) - RCU callback offloading update - Polling RCU grace-period interfaces - Realtime-related RCU updates - Tasks-RCU updates - Torture-test updates - Torture-test scripting updates - Miscellaneous fixes * tag 'core-rcu-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits) rcutorture: Test start_poll_synchronize_rcu() and poll_state_synchronize_rcu() rcu: Provide polling interfaces for Tiny RCU grace periods torture: Fix kvm.sh --datestamp regex check torture: Consolidate qemu-cmd duration editing into kvm-transform.sh torture: Print proper vmlinux path for kvm-again.sh runs torture: Make TORTURE_TRUST_MAKE available in kvm-again.sh environment torture: Make kvm-transform.sh update jitter commands torture: Add --duration argument to kvm-again.sh torture: Add kvm-again.sh to rerun a previous torture-test torture: Create a "batches" file for build reuse torture: De-capitalize TORTURE_SUITE torture: Make upper-case-only no-dot no-slash scenario names official torture: Rename SRCU-t and SRCU-u to avoid lowercase characters torture: Remove no-mpstat error message torture: Record kvm-test-1-run.sh and kvm-test-1-run-qemu.sh PIDs torture: Record jitter start/stop commands torture: Extract kvm-test-1-run-qemu.sh from kvm-test-1-run.sh torture: Record TORTURE_KCONFIG_GDB_ARG in qemu-cmd torture: Abstract jitter.sh start/stop into scripts rcu: Provide polling interfaces for Tree RCU grace periods ... |
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Jakub Kicinski
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f89271f09f |
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says: ==================== pull-request: bpf-next 2021-04-28 The main changes are: 1) Add link detach and following re-attach for trampolines, from Jiri Olsa. 2) Use kernel's "binary printf" lib for formatted output BPF helpers (which avoids the needs for variadic argument handling), from Florent Revest. 3) Fix verifier 64 to 32 bit min/max bound propagation, from Daniel Borkmann. 4) Convert cpumap to use netif_receive_skb_list(), from Lorenzo Bianconi. 5) Add generic batched-ops support to percpu array map, from Pedro Tammela. 6) Various CO-RE relocation BPF selftests fixes, from Andrii Nakryiko. 7) Misc doc rst fixes, from Hengqi Chen. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: bpf, selftests: Update array map tests for per-cpu batched ops bpf: Add batched ops support for percpu array bpf: Implement formatted output helpers with bstr_printf seq_file: Add a seq_bprintf function bpf, docs: Fix literal block for example code bpf, cpumap: Bulk skb using netif_receive_skb_list bpf: Fix propagation of 32 bit unsigned bounds from 64 bit bounds bpf: Lock bpf_trace_printk's tmp buf before it is written to selftests/bpf: Fix core_reloc test runner selftests/bpf: Fix field existence CO-RE reloc tests selftests/bpf: Fix BPF_CORE_READ_BITFIELD() macro libbpf: Support BTF_KIND_FLOAT during type compatibility checks in CO-RE selftests/bpf: Add remaining ASSERT_xxx() variants selftests/bpf: Use ASSERT macros in lsm test selftests/bpf: Test that module can't be unloaded with attached trampoline selftests/bpf: Add re-attach test to lsm test selftests/bpf: Add re-attach test to fexit_test selftests/bpf: Add re-attach test to fentry_test bpf: Allow trampoline re-attach for tracing and lsm programs ==================== Link: https://lore.kernel.org/r/20210427233740.22238-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Linus Torvalds
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68a32ba141 |
drm for 5.13-rc1
- printk fourcc modifier support added %p4cc core: - drm_crtc_commit_wait - atomic plane state helpers reworked for full state - dma-buf heaps API rework - edid: rework and improvements for displayid dp-mst: - better topology logging bridge: - Chipone ICN6211 - Lontium LT8912B - anx7625 regulator support panel: - fix lt9611 4k panels handling simple-kms: - add plane state helpers ttm: - debugfs support - removal of unused sysfs - ignore signaled moved fences - ioremap buffer according to mem caching i915: - Alderlake S enablement - Conversion to dma_resv_locking - Bring back watchdog timeout support - legacy ioctl cleanups - add GEM TDDO and RFC process - DG1 LMEM preparation work - intel_display.c refactoring - Gen9/TGL PCH combination support - eDP MSO Support - multiple PSR instance support - Link training debug updates - Disable PSR2 support on JSL/EHL - DDR5/LPDDR5 support for bw calcs - LSPCON limited to gen9/10 platforms - HSW/BDW async flip/VTd corruption workaround = SAGV watermakr fixes - SNB hard hang on ring resume fix - Limit imported dma-buf size - move to use new tasklet API - refactor KBL/TGL/ADL-S display/gt steppings - refactoring legacy DP/HDMI, FB plane code out amdgpu: - uapi: add ioctl to query video capabilities - Iniital AMD Freesync HDMI support - Initial Adebaran support - 10bpc dithering improvements - DCN secure display support - Drop legacy IO BAR requirements - PCIE/S0ix/RAS/Prime/Reset fixes - Display ASSR support - SMU gfx busy queues for RV/PCO - Initial LTTPR display work amdkfd: - MMU notifier fixes - APU fixes radeon: - debugfs cleanps - fw error handling ifix - Flexible array cleanups msm: - big DSI phy/pll cleanup - sc7280 initial support - commong bandwidth scaling path - shrinker locking contention fixes - unpin/swap support for GEM objcets ast: - cursor plane handling reworked tegra: - don't register DP AUX channels before connectors zynqmp: - fix OOB struct padding memset gma500: - drop ttm and medfield support exynos: - request_irq cleanup function mediatek: - fine tune line time for EOTp - MT8192 dpi support - atomic crtc config updates - don't support HDMI connector creation mxsdb: - imx8mm support panfrost: -= MMU IRQ handling rework qxl: - locking fixes - resource deallocation changes sun4i: - add alpha properties to UI/VI layers vc4: - RPi4 CEC support vmwgfx: - doc cleanups arc: - moved to drm/tiny -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJgiNSVAAoJEAx081l5xIa+fvYP/1206BfOYOx5opt5K3By06ZY zrOsbeaqFdHzfUR7xVwO4vqQNhkX4Pt8H/U7uYZx8PRdrXzGENwWLIaIskyUrKOd BtwNqUr0ZXJGDlGg26StnUHKeAXuYXlpBKLta5y4LUTkI+bm6V/oVaDMq4dnah70 2CXS4C2mnaFRLBzuRlraxoGFN4eZkz6Waeyo6PJxn/l2GE2gw+jho0Yrh8e8F2w5 EjQeNF22/uHwznov03XFJlyugecuBDbE8A6Ma/znnkVdBXcT94eUMugbKOKi4Nn6 PuJOEdJxmj/9s3oi6kBERc8dvpOj0O+8Vp+xOzn2U3BVXebvu7VoJsq6FcAvL5lN ltj4iErxUlEud2GRIVUMx8OTFiKj4ThRFJ2/8Uf22r3P7RHO5E9BLnZBzqIAhDVr s2cDBMItcxcVHRCmE04h12XAO4libZBb2TVjbqG94Acq7beR76pMszFrmxPmHBEm NGe1s7+ajxMzsq/NIsk4XAhqSmJo6+ujKyyVnrgvKUVeEaWW1U4YvjhJaetnP4fB 47gF24wOSNFwiCUZlqaIpp/MR4Z8YmaJ7tayWQq4Oj/neWe/yc8xQgQIuE8GL20j P9eNQNvlBnoxkz275M9x4kVhJ5FRjr7OYnd3sFVnALuj6fnL3Z1RXLqI1lNtIz1d YM89veZuNxMaiDz8roPH =bLWZ -----END PGP SIGNATURE----- Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "The usual lots of work all over the place. i915 has gotten some Alderlake work and prelim DG1 code, along with a major locking rework over the GEM code, and brings back the property of timing out long running jobs using a watchdog. amdgpu has some Alderbran support (new GPU), freesync HDMI support along with a lot other fixes. Outside of the drm, there is a new printf specifier added which should have all the correct acks/sobs: - printk fourcc modifier support added %p4cc Summary: core: - drm_crtc_commit_wait - atomic plane state helpers reworked for full state - dma-buf heaps API rework - edid: rework and improvements for displayid dp-mst: - better topology logging bridge: - Chipone ICN6211 - Lontium LT8912B - anx7625 regulator support panel: - fix lt9611 4k panels handling simple-kms: - add plane state helpers ttm: - debugfs support - removal of unused sysfs - ignore signaled moved fences - ioremap buffer according to mem caching i915: - Alderlake S enablement - Conversion to dma_resv_locking - Bring back watchdog timeout support - legacy ioctl cleanups - add GEM TDDO and RFC process - DG1 LMEM preparation work - intel_display.c refactoring - Gen9/TGL PCH combination support - eDP MSO Support - multiple PSR instance support - Link training debug updates - Disable PSR2 support on JSL/EHL - DDR5/LPDDR5 support for bw calcs - LSPCON limited to gen9/10 platforms - HSW/BDW async flip/VTd corruption workaround - SAGV watermark fixes - SNB hard hang on ring resume fix - Limit imported dma-buf size - move to use new tasklet API - refactor KBL/TGL/ADL-S display/gt steppings - refactoring legacy DP/HDMI, FB plane code out amdgpu: - uapi: add ioctl to query video capabilities - Iniital AMD Freesync HDMI support - Initial Adebaran support - 10bpc dithering improvements - DCN secure display support - Drop legacy IO BAR requirements - PCIE/S0ix/RAS/Prime/Reset fixes - Display ASSR support - SMU gfx busy queues for RV/PCO - Initial LTTPR display work amdkfd: - MMU notifier fixes - APU fixes radeon: - debugfs cleanps - fw error handling ifix - Flexible array cleanups msm: - big DSI phy/pll cleanup - sc7280 initial support - commong bandwidth scaling path - shrinker locking contention fixes - unpin/swap support for GEM objcets ast: - cursor plane handling reworked tegra: - don't register DP AUX channels before connectors zynqmp: - fix OOB struct padding memset gma500: - drop ttm and medfield support exynos: - request_irq cleanup function mediatek: - fine tune line time for EOTp - MT8192 dpi support - atomic crtc config updates - don't support HDMI connector creation mxsdb: - imx8mm support panfrost: - MMU IRQ handling rework qxl: - locking fixes - resource deallocation changes sun4i: - add alpha properties to UI/VI layers vc4: - RPi4 CEC support vmwgfx: - doc cleanups arc: - moved to drm/tiny" * tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm: (1390 commits) drm/ttm: Don't count pages in SG BOs against pages_limit drm/ttm: fix return value check drm/bridge: lt8912b: fix incorrect handling of of_* return values drm: bridge: fix LONTIUM use of mipi_dsi_() functions drm: bridge: fix ANX7625 use of mipi_dsi_() functions drm/amdgpu: page retire over debugfs mechanism drm/radeon: Fix a missing check bug in radeon_dp_mst_detect() drm/amd/display: Fix the Wunused-function warning drm/radeon/r600: Fix variables that are not used after assignment drm/amdgpu/smu7: fix CAC setting on TOPAZ drm/amd/display: Update DCN302 SR Exit Latency drm/amdgpu: enable ras eeprom on aldebaran drm/amdgpu: RAS harvest on driver load drm/amdgpu: add ras aldebaran ras eeprom driver drm/amd/pm: increase time out value when sending msg to SMU drm/amdgpu: add DMUB outbox event IRQ source define/complete/debug flag drm/amd/pm: add the callback to get vbios bootup values for vangogh drm/radeon: Fix size overflow drm/amdgpu: Fix size overflow drm/amdgpu: move mmhub ras_func init to ip specific file ... |
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Linus Torvalds
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3aa139aa9f |
media updates for v5.13-rc1
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE+QmuaPwR3wnBdVwACF8+vY7k4RUFAmCH7/AACgkQCF8+vY7k 4RVWVg//bcGubc1Sq68r0C+RMI1ETWMthtlkz9DTigDnht8uTmO+DohsE9R1mq4I szwwcwfMnMdbLB+zP7v1JNicT8GNMeFu7STurwj1w6YeQ5/IHcQc4P39+/8EAwqB hrUSIsY+RuYuv7dROwi45Yn8/mmWH4vdP3zrm3/k/EdlEBrf6C0e0KbGLqCr9Zrx pWVMB22RGfzh+1qQJhA43rDYceXs5/b5/Y1Dc/W97lJXyv87Hy0g333R+G1KzKLf 3fhluSaLHC1j6Mm7Vneowy3mDjeyPZBiRajvNbbApQMzKIa78rJGOjMEBynHW1Rl Np7N0cGIq2a/yai7fCQk1SO9MdsLzE8rG+X/KxS3LSgb8c1RT31VaZhRfD9Pn4Gr asJ/JO7SX3YHXDO8F9WtsD/Fi9AREPz2o3I1760zk5KNQf9uvxeWkQPHQkKLlO/7 6JWtmu5KbzUMqXZyekhcTDfqJE3xgUg36xLa7wDy8FlgDfE9MZUBaRwktHyfNgi0 6tDdv1/w0iEvglUGVLMlQRh2ysx3lgBuAmI8Jg1vSt9DhZLsj8DY89/JE3B+CCBX uT9Zwc/Ug/HEpYMEhptP26z/TgVIkxs5iCvKripJ5GKl/tEIqsHSjqW5lzgI/6O+ hKjxgZdeQ8+F9TJ5AMIBDU82trwDj77lIcHsRFRI6JLs/9L2PRo= =fvc5 -----END PGP SIGNATURE----- Merge tag 'media/v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - addition of a maintainer's profile for the media subsystem - addition of i.MX8 IP support - qcom/camss gained support for hardware version Titan 170 - new RC keymaps - Lots of other improvements, cleanups and bug fixes * tag 'media/v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (488 commits) media: coda: fix macroblocks count control usage media: rkisp1: params: fix wrong bits settings media: cedrus: Fix H265 status definitions media: meson-ge2d: fix rotation parameters media: v4l2-ctrls: fix reference to freed memory media: venus : hfi: add venus image info into smem media: venus: Fix internal buffer size calculations for v6. media: venus: helpers: keep max bandwidth when mbps exceeds the supported range media: venus: fix hw overload error log condition media: venus: core: correct firmware name for sm8250 media: venus: core,pm: fix potential infinite loop media: venus: core: Fix kerneldoc warnings media: gscpa/stv06xx: fix memory leak media: cx25821: remove unused including <linux/version.h> media: staging: media/meson: remove redundant dev_err call media: adv7842: support 1 block EDIDs, fix clearing EDID media: adv7842: configure all pads media: allegro: change kernel-doc comment blocks to normal comments media: camss: ispif: Remove redundant dev_err call in msm_ispif_subdev_init() media: i2c: rdamc21: Fix warning on u8 cast ... |
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Christophe Leroy
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5256426247 |
powerpc/signal32: Fix erroneous SIGSEGV on RT signal return
Return of user_read_access_begin() is tested the wrong way,
leading to a SIGSEGV when the user address is valid and likely
an Oops when the user address is bad.
Fix the test.
Fixes:
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Nathan Chancellor
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f9cd5f91a8 |
powerpc: Avoid clang uninitialized warning in __get_user_size_allowed
Commit |
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Takashi Iwai
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2e6a731296 |
ALSA: hda/conexant: Re-order CX5066 quirk table entries
Just re-order the cx5066_fixups[] entries for HP devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-14-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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defce244b0 |
ALSA: hda/realtek: Remove redundant entry for ALC861 Haier/Uniwill devices
The quirk entry for Uniwill ECS M31EI is with the PCI SSID device 0, which means matching with all. That is, it's essentially equivalent with SND_PCI_QUIRK_VENDOR(0x1584), which also matches with the previous entry for Haier W18 applying the very same quirk. Let's unify them with the single vendor-quirk entry. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-13-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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9edeb1109d |
ALSA: hda/realtek: Re-order ALC662 quirk table entries
Just re-order the alc662_fixup_tbl[] entries for Acer and ASUS devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-12-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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c656f747df |
ALSA: hda/realtek: Re-order remaining ALC269 quirk table entries
Just re-order the alc269_fixup_tbl[] entries for FSC, Medion, Samsung and Lemote devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-11-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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f552ff54c2 |
ALSA: hda/realtek: Re-order ALC269 Lenovo quirk table entries
Just re-order the alc269_fixup_tbl[] entries for Lenovo devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-10-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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cab561f8d4 |
ALSA: hda/realtek: Re-order ALC269 Sony quirk table entries
Just re-order the alc269_fixup_tbl[] entries for Sony devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-9-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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3cd0ed636d |
ALSA: hda/realtek: Re-order ALC269 ASUS quirk table entries
Just re-order the alc269_fixup_tbl[] entries for ASUS devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-8-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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aa143ad39a |
ALSA: hda/realtek: Re-order ALC269 Dell quirk table entries
Just re-order the alc269_fixup_tbl[] entries for Dell devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-7-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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433f894ec7 |
ALSA: hda/realtek: Re-order ALC269 Acer quirk table entries
Just re-order the alc269_fixup_tbl[] entries for Acer devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-6-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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45461e3b55 |
ALSA: hda/realtek: Re-order ALC269 HP quirk table entries
Just re-order the alc269_fixup_tbl[] entries for HP devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Formerly, some entries were grouped for the actual codec, but this doesn't seem reasonable to keep in that way. So now we simply keep the PCI SSID order for the whole. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-5-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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13e1a4cd49 |
ALSA: hda/realtek: Re-order ALC882 Clevo quirk table entries
Just re-order the alc882_fixup_tbl[] entries for Clevo devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also, user lower hex letters in the entry. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-4-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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b7529c18fe |
ALSA: hda/realtek: Re-order ALC882 Sony quirk table entries
Just re-order the alc882_fixup_tbl[] entries for Sony devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-3-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Takashi Iwai
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b265047ac5 |
ALSA: hda/realtek: Re-order ALC882 Acer quirk table entries
Just re-order the alc882_fixup_tbl[] entries for Acer devices for avoiding the oversight of the duplicated or unapplied item in future. No functional changes. Also Cc-to-stable for the further patch applications. Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210428112704.23967-2-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Jiapeng Chong
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a3ffcebc87 |
ALSA: usb-audio: Remove redundant assignment to len
Variable len is set to zero but this value is never read as it is overwritten with a new value later on, hence it is a redundant assignment and can be removed. Cleans up the following clang-analyzer warning: sound/usb/mixer.c:2713:3: warning: Value stored to 'len' is never read [clang-analyzer-deadcode.DeadStores]. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Link: https://lore.kernel.org/r/1619519194-57806-1-git-send-email-jiapeng.chong@linux.alibaba.com Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Eckhart Mohr
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970e3012c0 |
ALSA: hda/realtek: Add quirk for Intel Clevo PCx0Dx
This applies a SND_PCI_QUIRK(...) to the Clevo PCx0Dx barebones. This fix enables audio output over the headset jack and ensures that a microphone connected via the headset combo jack is correctly recognized when pluged in. [ Rearranged the list entries in a sorted order -- tiwai ] Signed-off-by: Eckhart Mohr <e.mohr@tuxedocomputers.com> Co-developed-by: Werner Sembach <wse@tuxedocomputers.com> Signed-off-by: Werner Sembach <wse@tuxedocomputers.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210427153025.451118-1-wse@tuxedocomputers.com Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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Linus Torvalds
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acd3d28594 |
Miscellaneous minor fixes for v5.13.
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Linus Torvalds
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1e9599dfc4 |
linux-kselftest-kunit-5.13-rc1
This KUnit update for Linux 5.13-rc1 consists of several fixes and
new feature to support failure from dynamic analysis tools such as
UBSAN and fake ops for testing.
- a fake ops struct for testing a "free" function to complain if it
was called with an invalid argument, or caught a double-free. Most
return void and have no normal means of signalling failure
(e.g. super_operations, iommu_ops, etc.).
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Merge tag 'linux-kselftest-kunit-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
"Several fixes and a new feature to support failure from dynamic
analysis tools such as UBSAN and fake ops for testing.
- a fake ops struct for testing a "free" function to complain if it
was called with an invalid argument, or caught a double-free. Most
return void and have no normal means of signalling failure (e.g.
super_operations, iommu_ops, etc.)"
* tag 'linux-kselftest-kunit-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
Documentation: kunit: add tips for using current->kunit_test
kunit: fix -Wunused-function warning for __kunit_fail_current_test
kunit: support failure from dynamic analysis tools
kunit: tool: make --kunitconfig accept dirs, add lib/kunit fragment
kunit: make KUNIT_EXPECT_STREQ() quote values, don't print literals
kunit: Match parenthesis alignment to improve code readability
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Linus Torvalds
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2a68c268a1 |
linux-kselftest-next-5.13-rc1
This Kselftest update for Linux 5.13-rc1 consists of: - fixes and updates to resctrl test from Fenghua Yu and Reinette Chatre - fixes to Kselftest documentation, framework - minor spelling correction in timers test -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmCIls8ACgkQCwJExA0N QxzrDg/9E2+KrNsqT/bVZIDZgPsLOPtkIaNd+94wsGKgHUSekoHRYKcmeRZLLA3x m6s4Jc8o84rztRgjjttWCOQD3ICsFC5Dp4eu2f8YowlPqPRn0MMJEUwQAPhxnFq0 44KQ2v7bJhXYZRwhZXcv1Gu1o3o6cx59X9pLFo/Yf/OeTHj7ulegWtjCvBcS2uuT bhI0YbiCKDE4gIXYLPWKD96JjLRVo5zYnMIRqDJrgf7xSr+xoKmsZKSgkt6ca+My KSYtkaXDEB1DFNoovDQyhmAwImeqWgEKPMZIblLyfoUJNRyBQg9flRvguBzgR3TM J1lvavNZSC7qgx9xQI4DjsHtpn9y9C5/k9vXauhVtdMpMGY6zrz2zN5/xOohXjzN vlonhp6G/wkfxuo0Dcr++Oqlw5wWt55hxFJm84rIQ/2IYUfRBKWV5c2mUKRUJzrr pT3fcIpN1WTEBaxvC4/aL5oLvF/RSArSKs7StX1uzkedy7IwPsiCJa5OgT2iNSbH tpDS9KNOiLIkwpr8dBF9O9WRBo8ZtUoB1OPqQWuc0PMa0RDT4i/oTwe0ulu5rWma 5G3yQIilTsRAxpFWihklBiV0pB9bT8O/d8kMlagj/znl8GmKyiXEMDwrCPfVmp16 zNMskcarXWgL+BdhnSX5j53tLL6MEAWS1RzweR62U20eyPJF34Y= =0VC+ -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-next-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest updates from Shuah Khan: - fixes and updates to resctrl test from Fenghua Yu and Reinette Chatre - fixes to Kselftest documentation, framework - minor spelling correction in timers test * tag 'linux-kselftest-next-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (25 commits) selftests/resctrl: Change a few printed messages Documentation: kselftest: fix path to test module files selftests/resctrl: Create .gitignore to include resctrl_tests selftests/resctrl: Fix checking for < 0 for unsigned values selftests/resctrl: Fix incorrect parsing of iMC counters selftests/resctrl: Fix unmount resctrl FS selftests/resctrl: Skip the test if requested resctrl feature is not supported selftests/resctrl: Modularize resctrl test suite main() function selftests/resctrl: Don't hard code value of "no_of_bits" variable selftests/resctrl: Fix MBA/MBM results reporting format selftests/resctrl: Use resctrl/info for feature detection selftests/resctrl: Check for resctrl mount point only if resctrl FS is supported selftests/resctrl: Add config dependencies selftests/resctrl: Fix a printed message selftests/resctrl: Share show_cache_info() by CAT and CMT tests selftests/resctrl: Call kselftest APIs to log test results selftests/resctrl: Rename CQM test as CMT test selftests/resctrl: Fix missing options "-n" and "-p" selftests/resctrl: Ensure sibling CPU is not same as original CPU selftests/resctrl: Clean up resctrl features check ... |
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Linus Torvalds
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55e6be657b |
Merge branch 'for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup changes from Tejun Heo: "The only notable change is Vipin's new misc cgroup controller. This implements generic support for resources which can be controlled by simply counting and limiting the number of resource instances - ie there's X number of these on the system and this cgroup subtree can have upto Y of those. The first user is the address space IDs used for virtual machine memory encryption and expected future usages are similar - niche hardware features with concrete resource limits and simple usage models" * 'for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: use tsk->in_iowait instead of delayacct_is_task_waiting_on_io() cgroup/cpuset: fix typos in comments cgroup: misc: mark dummy misc_cg_res_total_usage() static inline svm/sev: Register SEV and SEV-ES ASIDs to the misc controller cgroup: Miscellaneous cgroup documentation. cgroup: Add misc cgroup controller |
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Linus Torvalds
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eb6bbacc46 |
Livepatching changes for 5.13
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Linus Torvalds
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7f3d08b255 |
printk changes for 5.13
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEESH4wyp42V4tXvYsjUqAMR0iAlPIFAmCIBMIACgkQUqAMR0iA lPIt9w//bbHUN/JsNtLCs/849oExdUn/thVajrD5yELttYZXhdzbXncNdkGX9tlU 4JmExmUoqKYdN6JhSnrcYvckHj7XXZM7pVh9IdzqRh10MEXIQ+7IUHjQc8034Zs/ W4/oZmfMtBjszap+cJ9hvdp9qaJkPz/fRLGlrbjc1K4hhxDa1gGmeD35SKswGltm q6RzX3uRl5JbBrYsLoqb28MGYRHhjf2+Pvndoj+5Nn9FtwPSot6jAkyqY5Y6iJlS W2EsFqOt+Kv7/I93FyQlnXC6Nx7vntmow7knmmGPXDf2BqLb0J8Bxl3fwuzpQoao nZzL/p9GQ4ZXF6y8gRV8+RzPIcftBdayOswEDGH0LzlTkbAe/9Sq9Lo7a4Z8jxHW ro0P+PSRK5Ksm7jvpVmSTg+Nt+XqDA5zA1lAorX1UjsyeDDNF9ndQ4C+ZNhCKo54 y+RDgtAArJMIvsHLQ53ReoOct5NnGVNb8G/r3bIAu+Dn6K3nesr6fP1XG8iduseL yFlLB7w214BQMr2B/C+8lQvj54wWE4lea2+LNvObxC5b8puYj0fEniUxTYP6bcB5 QT+LfTToufYz4US7ggJy6hoEfohifGWVvDHbn9tXmyXotSTHH7pHdYypqY+UO+kl 7BkwzNFCm4qCIKsg8nyJxT2hDOlpcCrQx1dBIjveMqJ0c5+ahXU= =ovSn -----END PGP SIGNATURE----- Merge tag 'printk-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux Pull printk updates from Petr Mladek: - Stop synchronizing kernel log buffer readers by logbuf_lock. As a result, the access to the buffer is fully lockless now. Note that printk() itself still uses locks because it tries to flush the messages to the console immediately. Also the per-CPU temporary buffers are still there because they prevent infinite recursion and serialize backtraces from NMI. All this is going to change in the future. - kmsg_dump API rework and cleanup as a side effect of the logbuf_lock removal. - Make bstr_printf() aware that %pf and %pF formats could deference the given pointer. - Show also page flags by %pGp format. - Clarify the documentation for plain pointer printing. - Do not show no_hash_pointers warning multiple times. - Update Senozhatsky email address. - Some clean up. * tag 'printk-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (24 commits) lib/vsprintf.c: remove leftover 'f' and 'F' cases from bstr_printf() printk: clarify the documentation for plain pointer printing kernel/printk.c: Fixed mundane typos printk: rename vprintk_func to vprintk vsprintf: dump full information of page flags in pGp mm, slub: don't combine pr_err with INFO mm, slub: use pGp to print page flags MAINTAINERS: update Senozhatsky email address lib/vsprintf: do not show no_hash_pointers message multiple times printk: console: remove unnecessary safe buffer usage printk: kmsg_dump: remove _nolock() variants printk: remove logbuf_lock printk: introduce a kmsg_dump iterator printk: kmsg_dumper: remove @active field printk: add syslog_lock printk: use atomic64_t for devkmsg_user.seq printk: use seqcount_latch for clear_seq printk: introduce CONSOLE_LOG_MAX printk: consolidate kmsg_dump_get_buffer/syslog_print_all code printk: refactor kmsg_dump_get_buffer() ... |
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Linus Torvalds
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916a75965e |
kgdb patches for 5.13
Exclusively tidy ups this cycle. Most of them are thanks to Sumit Garg and, as it happens, the clean ups do result in a slight increase in the line count. This is due to registering kdb commands using data structures rather than function calls which, in turn, simplifies the memory management during command registration. In addition to changes to command registration we also have some dead code removal, a clearer implementation of environment variable handling and a typo fix. Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEELzVBU1D3lWq6cKzwfOMlXTn3iKEFAmCIEcIACgkQfOMlXTn3 iKHaWRAApW5fVDvM4ACAYYzqnq+ID2wW5h9XHpbyFqeaErQQEwjIcQHKMnHGMQ7J 2Smb8r9hmk93HgetUAYUe1xoU1/UgiVUlLxZDmtWw8Kf/e9unRcFAa6nUUxeFDn9 J3s1ZLAGOyjxThRKqOhgoQLE0c+tby7QaiEFF1O/iHTxWIn/euSTRbENoF40xDXU oheEfysWF9TpRo/96ZO14tbBHj6THrjyKkHFzYyjRs29wc/j/ofLg9OJj4tzuMne XecT7npDJ1JFoyZfkvxxK8TW/a2MLaH1EVO3EpiBM6tMSlHW3NRCehXXlJ6JyGY0 wAYwd5hgldXcVL8kmDXIC8qhuhGf7mCaU/8AmWyISj+lQcmcNfZYivJmZjdEW3qT yFkZ3k/r18N7/tRPbvOarlhxNHx+eCaFGm5ffz9VmMHMp1nrTk1lGhK63gTel3B0 ndIbvpN4ujWpes5lDg2knvZpaRIClSvisn/UyuuzZyWmeTT/kdUVHruSmopUFw9m BEWvAh0HwlR9dRhB8UKUyFF7w5fMXXw0+9j5HOw7gOR78QoNUZymBsxsISWp9fOO +Pzz3B9+TQdt9aZP1frMgDvNf6HDebxDZnmgCh5uMoLiKXAqJtJYdmLCOiTjtg35 FG44QhZFFlyDQdmPFf3hY+hGf2YxNdk+zdlyYq/amFjm5N3jGUM= =2I9J -----END PGP SIGNATURE----- Merge tag 'kgdb-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux Pull kgdb updates from Daniel Thompson: "Exclusively tidy ups this cycle. Most of them are thanks to Sumit Garg and, as it happens, the clean ups do result in a slight increase in the line count. This is due to registering kdb commands using data structures rather than function calls which, in turn, simplifies the memory management during command registration. In addition to changes to command registration we also have some dead code removal, a clearer implementation of environment variable handling and a typo fix" * tag 'kgdb-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux: kdb: Refactor env variables get/set code kernel: debug: Ordinary typo fixes in the file gdbstub.c kdb: Simplify kdb commands registration kdb: Remove redundant function definitions/prototypes |
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Linus Torvalds
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6daa755f81 |
s390 updates for 5.13 merge window
- fix buffer size for in-kernel disassembler for ebpf programs. - fix two memory leaks in zcrypt driver. - expose PCI device UID as index, including an indicator if the uid is unique. - remove some oprofile leftovers. - improve stack unwinder tests. - don't use gcc atomic builtins anymore, just like all other architectures. Even though I'm sure the current code is ok, I totally dislike that s390 is the only architecture being special here; especially considering that there was a lengthly discussion about this topic and the outcome was not to use the builtins. Therefore open-code atomic ops again with inline assembly and switch to gcc builtins as soon as other architectures are doing. - couple of other changes to atomic and cmpxchg, and use atomic-instrumented.h for KASAN. - separate zbus creation, registration, and scanning in our PCI code which allows for cleaner and easier handling. - a rather large change to the vfio-ap code to fix circular locking dependencies when updating crypto masks. - move QAOB handling from qdio layer down to drivers. - add CRW inject facility to common I/O layer. This adds debugs files which allow to generate artificial events from user space for testing purposes. - increase SCLP console line length from 80 to 320 characters to avoid odd wrapped lines. - add protected virtualization guest and host indication files, which indicate either that a guest is running in pv mode or if the hypervisor is capable of starting pv guests. - various other small fixes and improvements all over the place. -----BEGIN PGP SIGNATURE----- iQIyBAABCAAdFiEECMNfWEw3SLnmiLkZIg7DeRspbsIFAmCICNwACgkQIg7DeRsp bsJgSQ/0Cn3KTymF8SJ7tXLpYBNHmZBL1sQ284pPNYmqluwephUaX643f/48RR5y rlbaewyHCbYyR+gwkUykuUQm/d+iwihip/uFmyEktr9JutOOS1RQKd8ujeyE2BUb aaDyE0J5VFYdd/ZA92n9FhkuNDOMZRFAK1SOfifT9jNWCl8iYz+pXV1Gx7LbJYVY KWfJ9D/zgzLoOTWhj4jWu8LutfLEqK+hq5nqxBII8APCV/QDYnjkwpwW01LoMtOv eHhtSz0JboFRk0FYf8oyR7AXQBz76+Ru3aivJNL7sr1S3N2yMSzNQbk/ATVBLER9 VMQX2TfGGT/Ln3P4rYEoP2vGITRn765wg4KWNB2u3pY2try12G39fmjzOwVfbxQw BDAcLwxU7Tw0vJY+yI6ZWkPDXcs+uAWQwNiYoMtfUPfMYLEpLFffbWGwdZPKZRrH fy4e5ZFuavZsZr8Zeu4WYILJZoDnvhbs59gPzaLBPKosR0ZGNi8q6bnztnqnrYhi Oirt6aPOOyEoN/IT2bO1sDhIzIpCorIwCMZTRIQzerFRcjJgy0xHM9MRYRLMj6iW xltgWNt01SbTm6pbimwMUnjN5AdMTbHlTSzD8G34eWO21cVgHGpndbcT/M3uemyy Wf034Er2eFqlhXyhiAYTnNhVGbd+YMido7eo/CbGvqCxNvmKbA== =e+mh -----END PGP SIGNATURE----- Merge tag 's390-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Heiko Carstens: - fix buffer size for in-kernel disassembler for ebpf programs. - fix two memory leaks in zcrypt driver. - expose PCI device UID as index, including an indicator if the uid is unique. - remove some oprofile leftovers. - improve stack unwinder tests. - don't use gcc atomic builtins anymore, just like all other architectures. Even though I'm sure the current code is ok, I totally dislike that s390 is the only architecture being special here; especially considering that there was a lengthly discussion about this topic and the outcome was not to use the builtins. Therefore open-code atomic ops again with inline assembly and switch to gcc builtins as soon as other architectures are doing. - couple of other changes to atomic and cmpxchg, and use atomic-instrumented.h for KASAN. - separate zbus creation, registration, and scanning in our PCI code which allows for cleaner and easier handling. - a rather large change to the vfio-ap code to fix circular locking dependencies when updating crypto masks. - move QAOB handling from qdio layer down to drivers. - add CRW inject facility to common I/O layer. This adds debugs files which allow to generate artificial events from user space for testing purposes. - increase SCLP console line length from 80 to 320 characters to avoid odd wrapped lines. - add protected virtualization guest and host indication files, which indicate either that a guest is running in pv mode or if the hypervisor is capable of starting pv guests. - various other small fixes and improvements all over the place. * tag 's390-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (53 commits) s390/disassembler: increase ebpf disasm buffer size s390/archrandom: add parameter check for s390_arch_random_generate s390/zcrypt: fix zcard and zqueue hot-unplug memleak s390/pci: expose a PCI device's UID as its index s390/atomic,cmpxchg: always inline __xchg/__cmpxchg s390/smp: fix do_restart() prototype s390: get rid of oprofile leftovers s390/atomic,cmpxchg: make constraints work with old compilers s390/test_unwind: print test suite start/end info s390/cmpxchg: use unsigned long values instead of void pointers s390/test_unwind: add WARN if tests failed s390/test_unwind: unify error handling paths s390: update defconfigs s390/spinlock: use R constraint in inline assembly s390/atomic,cmpxchg: switch to use atomic-instrumented.h s390/cmpxchg: get rid of gcc atomic builtins s390/atomic: get rid of gcc atomic builtins s390/atomic: use proper constraints s390/atomic: move remaining inline assemblies to atomic_ops.h s390/bitops: make bitops only work on longs ... |
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Linus Torvalds
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c6536676c7 |
- turn the stack canary into a normal __percpu variable on 32-bit which
gets rid of the LAZY_GS stuff and a lot of code. - Add an insn_decode() API which all users of the instruction decoder should preferrably use. Its goal is to keep the details of the instruction decoder away from its users and simplify and streamline how one decodes insns in the kernel. Convert its users to it. - kprobes improvements and fixes - Set the maximum DIE per package variable on Hygon - Rip out the dynamic NOP selection and simplify all the machinery around selecting NOPs. Use the simplified NOPs in objtool now too. - Add Xeon Sapphire Rapids to list of CPUs that support PPIN - Simplify the retpolines by folding the entire thing into an alternative now that objtool can handle alternatives with stack ops. Then, have objtool rewrite the call to the retpoline with the alternative which then will get patched at boot time. - Document Intel uarch per models in intel-family.h - Make Sub-NUMA Clustering topology the default and Cluster-on-Die the exception on Intel. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmCHyJQACgkQEsHwGGHe VUpjiRAAwPZdwwp08ypZuMHR4EhLNru6gYhbAoALGgtYnQjLtn5onQhIeieK+R4L cmZpxHT9OFp5dXHk4kwygaQBsD4pPOiIpm60kye1dN3cSbOORRdkwEoQMpKMZ+5Y kvVsmn7lrwRbp600KdE4G6L5+N6gEgr0r6fMFWWGK3mgVAyCzPexVHgydcp131ch iYMo6/pPDcNkcV/hboVKgx7GISdQ7L356L1MAIW/Sxtw6uD/X4qGYW+kV2OQg9+t nQDaAo7a8Jqlop5W5TQUdMLKQZ1xK8SFOSX/nTS15DZIOBQOGgXR7Xjywn1chBH/ PHLwM5s4XF6NT5VlIA8tXNZjWIZTiBdldr1kJAmdDYacrtZVs2LWSOC0ilXsd08Z EWtvcpHfHEqcuYJlcdALuXY8xDWqf6Q2F7BeadEBAxwnnBg+pAEoLXI/1UwWcmsj wpaZTCorhJpYo2pxXckVdHz2z0LldDCNOXOjjaWU8tyaOBKEK6MgAaYU7e0yyENv mVc9n5+WuvXuivC6EdZ94Pcr/KQsd09ezpJYcVfMDGv58YZrb6XIEELAJIBTu2/B Ua8QApgRgetx+1FKb8X6eGjPl0p40qjD381TADb4rgETPb1AgKaQflmrSTIik+7p O+Eo/4x/GdIi9jFk3K+j4mIznRbUX0cheTJgXoiI4zXML9Jv94w= =bm4S -----END PGP SIGNATURE----- Merge tag 'x86_core_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 updates from Borislav Petkov: - Turn the stack canary into a normal __percpu variable on 32-bit which gets rid of the LAZY_GS stuff and a lot of code. - Add an insn_decode() API which all users of the instruction decoder should preferrably use. Its goal is to keep the details of the instruction decoder away from its users and simplify and streamline how one decodes insns in the kernel. Convert its users to it. - kprobes improvements and fixes - Set the maximum DIE per package variable on Hygon - Rip out the dynamic NOP selection and simplify all the machinery around selecting NOPs. Use the simplified NOPs in objtool now too. - Add Xeon Sapphire Rapids to list of CPUs that support PPIN - Simplify the retpolines by folding the entire thing into an alternative now that objtool can handle alternatives with stack ops. Then, have objtool rewrite the call to the retpoline with the alternative which then will get patched at boot time. - Document Intel uarch per models in intel-family.h - Make Sub-NUMA Clustering topology the default and Cluster-on-Die the exception on Intel. * tag 'x86_core_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits) x86, sched: Treat Intel SNC topology as default, COD as exception x86/cpu: Comment Skylake server stepping too x86/cpu: Resort and comment Intel models objtool/x86: Rewrite retpoline thunk calls objtool: Skip magical retpoline .altinstr_replacement objtool: Cache instruction relocs objtool: Keep track of retpoline call sites objtool: Add elf_create_undef_symbol() objtool: Extract elf_symbol_add() objtool: Extract elf_strtab_concat() objtool: Create reloc sections implicitly objtool: Add elf_create_reloc() helper objtool: Rework the elf_rebuild_reloc_section() logic objtool: Fix static_call list generation objtool: Handle per arch retpoline naming objtool: Correctly handle retpoline thunk calls x86/retpoline: Simplify retpolines x86/alternatives: Optimize optimize_nops() x86: Add insn_decode_kernel() x86/kprobes: Move 'inline' to the beginning of the kprobe_is_ss() declaration ... |
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Linus Torvalds
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e7c6e405e1 |
Fix misc new gcc warnings
It seems like Fedora 34 ends up enabling a few new gcc warnings, notably "-Wstringop-overread" and "-Warray-parameter". Both of them cause what seem to be valid warnings in the kernel, where we have array size mismatches in function arguments (that are no longer just silently converted to a pointer to element, but actually checked). This fixes most of the trivial ones, by making the function declaration match the function definition, and in the case of intel_pm.c, removing the over-specified array size from the argument declaration. At least one 'stringop-overread' warning remains in the i915 driver, but that one doesn't have the same obvious trivial fix, and may or may not actually be indicative of a bug. [ It was a mistake to upgrade one of my machines to Fedora 34 while being busy with the merge window, but if this is the extent of the compiler upgrade problems, things are better than usual - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Stephen Boyd
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3ba2d41dca |
Merge branch 'clk-ralink' into clk-next
- Proper clk driver for Mediatek MT7621 SoCs * clk-ralink: MAINTAINERS: add MT7621 CLOCK maintainer staging: mt7621-dts: use valid vendor 'mediatek' instead of invalid 'mtk' staging: mt7621-dts: make use of new 'mt7621-clk' clk: ralink: add clock driver for mt7621 SoC dt: bindings: add mt7621-sysc device tree binding documentation dt-bindings: clock: add dt binding header for mt7621 clocks |
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Stephen Boyd
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bbc3b403b0 |
Merge branches 'clk-imx', 'clk-samsung', 'clk-zynq', 'clk-rockchip' and 'clk-uniphier' into clk-next
- Simplify Zynq Kconfig dependencies * clk-imx: clk: imx: Reference preceded by free clk: imx8mq: Correct the pcie1 sels clk: imx8mp: Remove the none exist pcie clocks clk: imx: Fix reparenting of UARTs not associated with stdout * clk-samsung: clk: samsung: Remove redundant dev_err calls clk: exynos7: Mark aclk_fsys1_200 as critical * clk-zynq: clk: zynqmp: pll: add set_pll_mode to check condition in zynqmp_pll_enable clk: zynqmp: move zynqmp_pll_set_mode out of round_rate callback clk: zynqmp: Drop dependency on ARCH_ZYNQMP clk: zynqmp: Enable the driver if ZYNQMP_FIRMWARE is selected * clk-rockchip: clk: rockchip: drop MODULE_ALIAS from rk3399 clock controller clk: rockchip: drop parenthesis from ARM || COMPILE_TEST depends clk: rockchip: add clock controller for rk3568 clk: rockchip: support more core div setting dt-binding: clock: Document rockchip, rk3568-cru bindings clk: rockchip: add dt-binding header for rk3568 * clk-uniphier: clk: uniphier: Fix potential infinite loop |
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Stephen Boyd
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c3ad321932 |
Merge branches 'clk-cleanup', 'clk-renesas', 'clk-socfpga', 'clk-allwinner' and 'clk-qcom' into clk-next
- Use clk_hw pointers in socfpga driver - Cleanup parent data in qcom clk drivers * clk-cleanup: clk: Drop double "if" in clk_core_determine_round_nolock() comment clk: at91: Trivial typo fixes in the file sama7g5.c clk: use clk_core_enable_lock() a bit more * clk-renesas: clk: renesas: Zero init clk_init_data clk: renesas: Couple of spelling fixes clk: renesas: r8a779a0: Add CMT clocks clk: renesas: r8a7795: Add TMU clocks clk: renesas: r8a779a0: Add TSC clock clk: renesas: r8a779a0: Add TMU clocks clk: renesas: r8a77965: Add DAB clock clk: renesas: r8a77990: Add DAB clock * clk-socfpga: clk: socfpga: remove redundant initialization of variable div clk: socfpga: arria10: Fix memory leak of socfpga_clk on error return clk: socfpga: Fix code formatting clk: socfpga: Convert to s10/agilex/n5x to use clk_hw clk: socfpga: arria10: convert to use clk_hw clk: socfpga: use clk_hw_register for a5/c5 * clk-allwinner: clk: sunxi: Demote non-conformant kernel-doc headers clk: sunxi-ng: v3s: use sigma-delta modulation for audio-pll * clk-qcom: (45 commits) clk: qcom: rpmh: add support for SDX55 rpmh IPA clock clk: qcom: gcc-sdm845: get rid of the test clock clk: qcom: convert SDM845 Global Clock Controller to parent_data dt-bindings: clock: separate SDM845 GCC clock bindings clk: qcom: apss-ipq-pll: Add missing MODULE_DEVICE_TABLE clk: qcom: a53-pll: Add missing MODULE_DEVICE_TABLE clk: qcom: a7-pll: Add missing MODULE_DEVICE_TABLE clk: qcom: gcc-sm8350: use ARRAY_SIZE instead of specifying num_parents clk: qcom: gcc-sm8250: use ARRAY_SIZE instead of specifying num_parents clk: qcom: gcc-sm8150: use ARRAY_SIZE instead of specifying num_parents clk: qcom: gcc-sc8180x: use ARRAY_SIZE instead of specifying num_parents clk: qcom: gcc-sc7180: use ARRAY_SIZE instead of specifying num_parents clk: qcom: videocc-sm8250: use parent_hws where possible clk: qcom: videocc-sm8150: use parent_hws where possible clk: qcom: gpucc-sm8250: use parent_hws where possible clk: qcom: gpucc-sm8150: use parent_hws where possible clk: qcom: gcc-sm8350: use parent_hws where possible clk: qcom: gcc-sm8250: use parent_hws where possible clk: qcom: gcc-sm8150: use parent_hws where possible clk: qcom: gcc-sdx55: use parent_hws where possible ... |
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Pedro Tammela
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3733bfbbdd |
bpf, selftests: Update array map tests for per-cpu batched ops
Follows the same logic as the hashtable tests. Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20210424214510.806627-3-pctammela@mojatatu.com |
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Pedro Tammela
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f008d732ab |
bpf: Add batched ops support for percpu array
Uses the already in-place infrastructure provided by the 'generic_map_*_batch' functions. No tweak was needed as it transparently handles the percpu variant. As arrays don't have delete operations, let it return a error to user space (default behaviour). Suggested-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20210424214510.806627-2-pctammela@mojatatu.com |
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Alexei Starovoitov
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05eb3791a0 |
Merge branch 'Implement formatted output helpers with bstr_printf'
Florent Revest says: ==================== BPF's formatted output helpers are currently implemented with snprintf-like functions which use variadic arguments. The types of all arguments need to be known at compilation time. BPF_CAST_FMT_ARG casts all arguments to the size they should be (known at runtime), but the C type promotion rules cast them back to u64s. On 32 bit architectures, this can cause misaligned va_lists and generate mangled output. This series refactors these helpers to avoid variadic arguments. It uses a "binary printf" instead, where arguments are passed in a buffer constructed at runtime. --- Changes in v2: - Reworded the second patch's description to better describe how arguments get mangled on 32 bit architectures ==================== Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Florent Revest
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48cac3f4a9 |
bpf: Implement formatted output helpers with bstr_printf
BPF has three formatted output helpers: bpf_trace_printk, bpf_seq_printf and bpf_snprintf. Their signatures specify that all arguments are provided from the BPF world as u64s (in an array or as registers). All of these helpers are currently implemented by calling functions such as snprintf() whose signatures take a variable number of arguments, then placed in a va_list by the compiler to call vsnprintf(). "d9c9e4db bpf: Factorize bpf_trace_printk and bpf_seq_printf" introduced a bpf_printf_prepare function that fills an array of u64 sanitized arguments with an array of "modifiers" which indicate what the "real" size of each argument should be (given by the format specifier). The BPF_CAST_FMT_ARG macro consumes these arrays and casts each argument to its real size. However, the C promotion rules implicitely cast them all back to u64s. Therefore, the arguments given to snprintf are u64s and the va_list constructed by the compiler will use 64 bits for each argument. On 64 bit machines, this happens to work well because 32 bit arguments in va_lists need to occupy 64 bits anyway, but on 32 bit architectures this breaks the layout of the va_list expected by the called function and mangles values. In "88a5c690b6 bpf: fix bpf_trace_printk on 32 bit archs", this problem had been solved for bpf_trace_printk only with a "horrid workaround" that emitted multiple calls to trace_printk where each call had different argument types and generated different va_list layouts. One of the call would be dynamically chosen at runtime. This was ok with the 3 arguments that bpf_trace_printk takes but bpf_seq_printf and bpf_snprintf accept up to 12 arguments. Because this approach scales code exponentially, it is not a viable option anymore. Because the promotion rules are part of the language and because the construction of a va_list is an arch-specific ABI, it's best to just avoid variadic arguments and va_lists altogether. Thankfully the kernel's snprintf() has an alternative in the form of bstr_printf() that accepts arguments in a "binary buffer representation". These binary buffers are currently created by vbin_printf and used in the tracing subsystem to split the cost of printing into two parts: a fast one that only dereferences and remembers values, and a slower one, called later, that does the pretty-printing. This patch refactors bpf_printf_prepare to construct binary buffers of arguments consumable by bstr_printf() instead of arrays of arguments and modifiers. This gets rid of BPF_CAST_FMT_ARG and greatly simplifies the bpf_printf_prepare usage but there are a few gotchas that change how bpf_printf_prepare needs to do things. Currently, bpf_printf_prepare uses a per cpu temporary buffer as a generic storage for strings and IP addresses. With this refactoring, the temporary buffers now holds all the arguments in a structured binary format. To comply with the format expected by bstr_printf, certain format specifiers also need to be pre-formatted: %pB and %pi6/%pi4/%pI4/%pI6. Because vsnprintf subroutines for these specifiers are hard to expose, we pre-format these arguments with calls to snprintf(). Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Florent Revest <revest@chromium.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210427174313.860948-3-revest@chromium.org |
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Florent Revest
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76d6a13383 |
seq_file: Add a seq_bprintf function
Similarly to seq_buf_bprintf in lib/seq_buf.c, this function writes a printf formatted string with arguments provided in a "binary representation" built by functions such as vbin_printf. Signed-off-by: Florent Revest <revest@chromium.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210427174313.860948-2-revest@chromium.org |
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Ignat Korchagin
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99ba0ea616 |
sfc: adjust efx->xdp_tx_queue_count with the real number of initialized queues
efx->xdp_tx_queue_count is initially initialized to num_possible_cpus() and is
later used to allocate and traverse efx->xdp_tx_queues lookup array. However,
we may end up not initializing all the array slots with real queues during
probing. This results, for example, in a NULL pointer dereference, when running
"# ethtool -S <iface>", similar to below
[2570283.664955][T4126959] BUG: kernel NULL pointer dereference, address: 00000000000000f8
[2570283.681283][T4126959] #PF: supervisor read access in kernel mode
[2570283.695678][T4126959] #PF: error_code(0x0000) - not-present page
[2570283.710013][T4126959] PGD 0 P4D 0
[2570283.721649][T4126959] Oops: 0000 [#1] SMP PTI
[2570283.734108][T4126959] CPU: 23 PID: 4126959 Comm: ethtool Tainted: G O 5.10.20-cloudflare-2021.3.1 #1
[2570283.752641][T4126959] Hardware name: <redacted>
[2570283.781408][T4126959] RIP: 0010:efx_ethtool_get_stats+0x2ca/0x330 [sfc]
[2570283.796073][T4126959] Code: 00 85 c0 74 39 48 8b 95 a8 0f 00 00 48 85 d2 74 2d 31 c0 eb 07 48 8b 95 a8 0f 00 00 48 63 c8 49 83 c4 08 83 c0 01 48 8b 14 ca <48> 8b 92 f8 00 00 00 49 89 54 24 f8 39 85 a0 0f 00 00 77 d7 48 8b
[2570283.831259][T4126959] RSP: 0018:ffffb79a77657ce8 EFLAGS: 00010202
[2570283.845121][T4126959] RAX: 0000000000000019 RBX: ffffb799cd0c9280 RCX: 0000000000000018
[2570283.860872][T4126959] RDX: 0000000000000000 RSI: ffff96dd970ce000 RDI: 0000000000000005
[2570283.876525][T4126959] RBP: ffff96dd86f0a000 R08: ffff96dd970ce480 R09: 000000000000005f
[2570283.892014][T4126959] R10: ffffb799cd0c9fff R11: ffffb799cd0c9000 R12: ffffb799cd0c94f8
[2570283.907406][T4126959] R13: ffffffffc11b1090 R14: ffff96dd970ce000 R15: ffffffffc11cd66c
[2570283.922705][T4126959] FS: 00007fa7723f8740(0000) GS:ffff96f51fac0000(0000) knlGS:0000000000000000
[2570283.938848][T4126959] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[2570283.952524][T4126959] CR2: 00000000000000f8 CR3: 0000001a73e6e006 CR4: 00000000007706e0
[2570283.967529][T4126959] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[2570283.982400][T4126959] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[2570283.997308][T4126959] PKRU: 55555554
[2570284.007649][T4126959] Call Trace:
[2570284.017598][T4126959] dev_ethtool+0x1832/0x2830
Fix this by adjusting efx->xdp_tx_queue_count after probing to reflect the true
value of initialized slots in efx->xdp_tx_queues.
Signed-off-by: Ignat Korchagin <ignat@cloudflare.com>
Fixes:
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Lv Yunlong
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7525858679 |
net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
In digital_tg_recv_dep_req, it calls nfc_tm_data_received(..,resp).
If nfc_tm_data_received() failed, the callee will free the resp via
kfree_skb() and return error. But in the exit branch, the resp
will be freed again.
My patch sets resp to NULL if nfc_tm_data_received() failed, to
avoid the double free.
Fixes:
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David S. Miller
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0711459095 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for net-next: 1) Add support for the catch-all set element. This special element can be used to define a default action to be applied in case that the set lookup returns no matching element. 2) Fix incorrect #ifdef dependencies in the nftables cgroupsv2 support, from Arnd Bergmann. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Gong, Sishuai
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69e16d01d1 |
net: fix a concurrency bug in l2tp_tunnel_register()
l2tp_tunnel_register() registers a tunnel without fully
initializing its attribute. This can allow another kernel thread
running l2tp_xmit_core() to access the uninitialized data and
then cause a kernel NULL pointer dereference error, as shown below.
Thread 1 Thread 2
//l2tp_tunnel_register()
list_add_rcu(&tunnel->list, &pn->l2tp_tunnel_list);
//pppol2tp_connect()
tunnel = l2tp_tunnel_get(sock_net(sk), info.tunnel_id);
// Fetch the new tunnel
...
//l2tp_xmit_core()
struct sock *sk = tunnel->sock;
...
bh_lock_sock(sk);
//Null pointer error happens
tunnel->sock = sk;
Fix this bug by initializing tunnel->sock before adding the
tunnel into l2tp_tunnel_list.
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Sishuai Gong <sishuai@purdue.edu>
Reported-by: Sishuai Gong <sishuai@purdue.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Jiapeng Chong
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6fd6c483e7 |
net/smc: Remove redundant assignment to rc
Variable rc is set to zero but this value is never read as it is overwritten with a new value later on, hence it is a redundant assignment and can be removed. Cleans up the following clang-analyzer warning: net/smc/af_smc.c:1079:3: warning: Value stored to 'rc' is never read [clang-analyzer-deadcode.DeadStores]. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Jiapeng Chong
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ad542fb7f2 |
mpls: Remove redundant assignment to err
Variable err is set to -ENOMEM but this value is never read as it is overwritten with a new value later on, hence it is a redundant assignment and can be removed. Cleans up the following clang-analyzer warning: net/mpls/af_mpls.c:1022:2: warning: Value stored to 'err' is never read [clang-analyzer-deadcode.DeadStores]. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net> |