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2022-03-28Merge tag 'net-5.18-rc0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter. Current release - regressions: - llc: only change llc->dev when bind() succeeds, fix null-deref Current release - new code bugs: - smc: fix a memory leak in smc_sysctl_net_exit() - dsa: realtek: make interface drivers depend on OF Previous releases - regressions: - sched: act_ct: fix ref leak when switching zones Previous releases - always broken: - netfilter: egress: report interface as outgoing - vsock/virtio: enable VQs early on probe and finish the setup before using them Misc: - memcg: enable accounting for nft objects" * tag 'net-5.18-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (39 commits) Revert "selftests: net: Add tls config dependency for tls selftests" net/smc: Send out the remaining data in sndbuf before close net: move net_unlink_todo() out of the header net: dsa: bcm_sf2_cfp: fix an incorrect NULL check on list iterator net: bnxt_ptp: fix compilation error selftests: net: Add tls config dependency for tls selftests memcg: enable accounting for nft objects net/sched: act_ct: fix ref leak when switching zones net/smc: fix a memory leak in smc_sysctl_net_exit() selftests: tls: skip cmsg_to_pipe tests with TLS=n octeontx2-af: initialize action variable net: sparx5: switchdev: fix possible NULL pointer dereference net/x25: Fix null-ptr-deref caused by x25_disconnect qlcnic: dcb: default to returning -EOPNOTSUPP net: sparx5: depends on PTP_1588_CLOCK_OPTIONAL net: hns3: fix phy can not link up when autoneg off and reset net: hns3: add NULL pointer check for hns3_set/get_ringparam() net: hns3: add netdev reset check for hns3_set_tunable() net: hns3: clean residual vf config after disable sriov net: hns3: add max order judgement for tx spare buffer ...
2022-03-28Revert "selftests: net: Add tls config dependency for tls selftests"Jakub Kicinski
This reverts commit d9142e1cf3bbdaf21337767114ecab26fe702d47. The test is supposed to run cleanly with TLS is disabled, to test compatibility with TCP behavior. I can't repro the failure [1], the problem should be debugged rather than papered over. Link: https://lore.kernel.org/all/20220325161203.7000698c@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/ [1] Fixes: d9142e1cf3bb ("selftests: net: Add tls config dependency for tls selftests") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20220328212904.2685395-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-28Merge tag 'livepatching-for-5.18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching Pull livepatching updates from Petr Mladek: - Forced transitions block only to-be-removed livepatches [Chengming] - Detect when ftrace handler could not be disabled in self-tests [David] - Calm down warning from a static analyzer [Tom] * tag 'livepatching-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: livepatch: Reorder to use before freeing a pointer livepatch: Don't block removal of patches that are safe to unload livepatch: Skip livepatch tests if ftrace cannot be configured
2022-03-28Merge tag 'char-misc-5.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc and other driver updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem updates for 5.18-rc1. Included in here are merges from driver subsystems which contain: - iio driver updates and new drivers - fsi driver updates - fpga driver updates - habanalabs driver updates and support for new hardware - soundwire driver updates and new drivers - phy driver updates and new drivers - coresight driver updates - icc driver updates Individual changes include: - mei driver updates - interconnect driver updates - new PECI driver subsystem added - vmci driver updates - lots of tiny misc/char driver updates All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (556 commits) firmware: google: Properly state IOMEM dependency kgdbts: fix return value of __setup handler firmware: sysfb: fix platform-device leak in error path firmware: stratix10-svc: add missing callback parameter on RSU arm64: dts: qcom: add non-secure domain property to fastrpc nodes misc: fastrpc: Add dma handle implementation misc: fastrpc: Add fdlist implementation misc: fastrpc: Add helper function to get list and page misc: fastrpc: Add support to secure memory map dt-bindings: misc: add fastrpc domain vmid property misc: fastrpc: check before loading process to the DSP misc: fastrpc: add secure domain support dt-bindings: misc: add property to support non-secure DSP misc: fastrpc: Add support to get DSP capabilities misc: fastrpc: add support for FASTRPC_IOCTL_MEM_MAP/UNMAP misc: fastrpc: separate fastrpc device from channel context dt-bindings: nvmem: brcm,nvram: add basic NVMEM cells dt-bindings: nvmem: make "reg" property optional nvmem: brcm_nvram: parse NVRAM content into NVMEM cells nvmem: dt-bindings: Fix the error of dt-bindings check ...
2022-03-28selftests: net: Add tls config dependency for tls selftestsNaresh Kamboju
selftest net tls test cases need TLS=m without this the test hangs. Enabling config TLS solves this problem and runs to complete. - CONFIG_TLS=m Reported-by: Linux Kernel Functional Testing <lkft@linaro.org> Signed-off-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-27Merge tag 'perf-tools-for-v5.18-2022-03-26' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools updates from Arnaldo Carvalho de Melo: "New features: perf ftrace: - Add -n/--use-nsec option to the 'latency' subcommand. Default: usecs: $ sudo perf ftrace latency -T dput -a sleep 1 # DURATION | COUNT | GRAPH | 0 - 1 us | 2098375 | ############################# | 1 - 2 us | 61 | | 2 - 4 us | 33 | | 4 - 8 us | 13 | | 8 - 16 us | 124 | | 16 - 32 us | 123 | | 32 - 64 us | 1 | | 64 - 128 us | 0 | | 128 - 256 us | 1 | | 256 - 512 us | 0 | | Better granularity with nsec: $ sudo perf ftrace latency -T dput -a -n sleep 1 # DURATION | COUNT | GRAPH | 0 - 1 us | 0 | | 1 - 2 ns | 0 | | 2 - 4 ns | 0 | | 4 - 8 ns | 0 | | 8 - 16 ns | 0 | | 16 - 32 ns | 0 | | 32 - 64 ns | 0 | | 64 - 128 ns | 1163434 | ############## | 128 - 256 ns | 914102 | ############# | 256 - 512 ns | 884 | | 512 - 1024 ns | 613 | | 1 - 2 us | 31 | | 2 - 4 us | 17 | | 4 - 8 us | 7 | | 8 - 16 us | 123 | | 16 - 32 us | 83 | | perf lock: - Add -c/--combine-locks option to merge lock instances in the same class into a single entry. # perf lock report -c Name acquired contended avg wait(ns) total wait(ns) max wait(ns) min wait(ns) rcu_read_lock 251225 0 0 0 0 0 hrtimer_bases.lock 39450 0 0 0 0 0 &sb->s_type->i_l... 10301 1 662 662 662 662 ptlock_ptr(page) 10173 2 701 1402 760 642 &(ei->i_block_re... 8732 0 0 0 0 0 &xa->xa_lock 8088 0 0 0 0 0 &base->lock 6705 0 0 0 0 0 &p->pi_lock 5549 0 0 0 0 0 &dentry->d_lockr... 5010 4 1274 5097 1844 789 &ep->lock 3958 0 0 0 0 0 - Add -F/--field option to customize the list of fields to output: $ perf lock report -F contended,wait_max -k avg_wait Name contended max wait(ns) avg wait(ns) slock-AF_INET6 1 23543 23543 &lruvec->lru_lock 5 18317 11254 slock-AF_INET6 1 10379 10379 rcu_node_1 1 2104 2104 &dentry->d_lockr... 1 1844 1844 &dentry->d_lockr... 1 1672 1672 &newf->file_lock 15 2279 1025 &dentry->d_lockr... 1 792 792 - Add --synth=no option for record, as there is no need to symbolize, lock names comes from the tracepoints. perf record: - Threaded recording, opt-in, via the new --threads command line option. - Improve AMD IBS (Instruction-Based Sampling) error handling messages. perf script: - Add 'brstackinsnlen' field (use it with -F) for branch stacks. - Output branch sample type in 'perf script'. perf report: - Add "addr_from" and "addr_to" sort dimensions. - Print branch stack entry type in 'perf report --dump-raw-trace' - Fix symbolization for chrooted workloads. Hardware tracing: Intel PT: - Add CFE (Control Flow Event) and EVD (Event Data) packets support. - Add MODE.Exec IFLAG bit support. Explanation about these features from the "Intel® 64 and IA-32 architectures software developer’s manual combined volumes: 1, 2A, 2B, 2C, 2D, 3A, 3B, 3C, 3D, and 4" PDF at: https://cdrdv2.intel.com/v1/dl/getContent/671200 At page 3951: "32.2.4 Event Trace is a capability that exposes details about the asynchronous events, when they are generated, and when their corresponding software event handler completes execution. These include: o Interrupts, including NMI and SMI, including the interrupt vector when defined. o Faults, exceptions including the fault vector. - Page faults additionally include the page fault address, when in context. o Event handler returns, including IRET and RSM. o VM exits and VM entries.¹ - VM exits include the values written to the “exit reason” and “exit qualification” VMCS fields. INIT and SIPI events. o TSX aborts, including the abort status returned for the RTM instructions. o Shutdown. Additionally, it provides indication of the status of the Interrupt Flag (IF), to indicate when interrupts are masked" ARM CoreSight: - Use advertised caps/min_interval as default sample_period on ARM spe. - Update deduction of TRCCONFIGR register for branch broadcast on ARM's CoreSight ETM. Vendor Events (JSON): Intel: - Update events and metrics for: Alderlake, Broadwell, Broadwell DE, BroadwellX, CascadelakeX, Elkhartlake, Bonnell, Goldmont, GoldmontPlus, Westmere EP-DP, Haswell, HaswellX, Icelake, IcelakeX, Ivybridge, Ivytown, Jaketown, Knights Landing, Nehalem EP, Sandybridge, Silvermont, Skylake, Skylake Server, SkylakeX, Tigerlake, TremontX, Westmere EP-SP, and Westmere EX. ARM: - Add support for HiSilicon CPA PMU aliasing. perf stat: - Fix forked applications enablement of counters. - The 'slots' should only be printed on a different order than the one specified on the command line when 'topdown' events are present, fix it. Miscellaneous: - Sync msr-index, cpufeatures header files with the kernel sources. - Stop using some deprecated libbpf APIs in 'perf trace'. - Fix some spelling mistakes. - Refactor the maps pointers usage to pave the way for using refcount debugging. - Only offer the --tui option on perf top, report and annotate when perf was built with libslang. - Don't mention --to-ctf in 'perf data --help' when not linking with the required library, libbabeltrace. - Use ARRAY_SIZE() instead of ad hoc equivalent, spotted by array_size.cocci. - Enhance the matching of sub-commands abbreviations: 'perf c2c rec' -> 'perf c2c record' 'perf c2c recport -> error - Set build-id using build-id header on new mmap records. - Fix generation of 'perf --version' string. perf test: - Add test for the arm_spe event. - Add test to check unwinding using fame-pointer (fp) mode on arm64. - Make metric testing more robust in 'perf test'. - Add error message for unsupported branch stack cases. libperf: - Add API for allocating new thread map array. - Fix typo in perf_evlist__open() failure error messages in libperf tests. perf c2c: - Replace bitmap_weight() with bitmap_empty() where appropriate" * tag 'perf-tools-for-v5.18-2022-03-26' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (143 commits) perf evsel: Improve AMD IBS (Instruction-Based Sampling) error handling messages perf python: Add perf_env stubs that will be needed in evsel__open_strerror() perf tools: Enhance the matching of sub-commands abbreviations libperf tests: Fix typo in perf_evlist__open() failure error messages tools arm64: Import cputype.h perf lock: Add -F/--field option to control output perf lock: Extend struct lock_key to have print function perf lock: Add --synth=no option for record tools headers cpufeatures: Sync with the kernel sources tools headers cpufeatures: Sync with the kernel sources perf stat: Fix forked applications enablement of counters tools arch x86: Sync the msr-index.h copy with the kernel sources perf evsel: Make evsel__env() always return a valid env perf build-id: Fix spelling mistake "Cant" -> "Can't" perf header: Fix spelling mistake "could't" -> "couldn't" perf script: Add 'brstackinsnlen' for branch stacks perf parse-events: Move slots only with topdown perf ftrace latency: Update documentation perf ftrace latency: Add -n/--use-nsec option perf tools: Fix version kernel tag ...
2022-03-27Merge tag 'memblock-v5.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock Pull memblock updates from Mike Rapoport: "Test suite and a small cleanup: - A small cleanup of unused variable in __next_mem_pfn_range_in_zone - Initial test suite to simulate memblock behaviour in userspace" * tag 'memblock-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: (27 commits) memblock tests: Add TODO and README files memblock tests: Add memblock_alloc_try_nid tests for bottom up memblock tests: Add memblock_alloc_try_nid tests for top down memblock tests: Add memblock_alloc_from tests for bottom up memblock tests: Add memblock_alloc_from tests for top down memblock tests: Add memblock_alloc tests for bottom up memblock tests: Add memblock_alloc tests for top down memblock tests: Add simulation of physical memory memblock tests: Split up reset_memblock function memblock tests: Fix testing with 32-bit physical addresses memblock: __next_mem_pfn_range_in_zone: remove unneeded local variable nid memblock tests: Add memblock_free tests memblock tests: Add memblock_add_node test memblock tests: Add memblock_remove tests memblock tests: Add memblock_reserve tests memblock tests: Add memblock_add tests memblock tests: Add memblock reset function memblock tests: Add skeleton of the memblock simulator tools/include: Add debugfs.h stub tools/include: Add pfn.h stub ...
2022-03-27Merge tag 'x86_core_for_5.18_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 CET-IBT (Control-Flow-Integrity) support from Peter Zijlstra: "Add support for Intel CET-IBT, available since Tigerlake (11th gen), which is a coarse grained, hardware based, forward edge Control-Flow-Integrity mechanism where any indirect CALL/JMP must target an ENDBR instruction or suffer #CP. Additionally, since Alderlake (12th gen)/Sapphire-Rapids, speculation is limited to 2 instructions (and typically fewer) on branch targets not starting with ENDBR. CET-IBT also limits speculation of the next sequential instruction after the indirect CALL/JMP [1]. CET-IBT is fundamentally incompatible with retpolines, but provides, as described above, speculation limits itself" [1] https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/branch-history-injection.html * tag 'x86_core_for_5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits) kvm/emulate: Fix SETcc emulation for ENDBR x86/Kconfig: Only allow CONFIG_X86_KERNEL_IBT with ld.lld >= 14.0.0 x86/Kconfig: Only enable CONFIG_CC_HAS_IBT for clang >= 14.0.0 kbuild: Fixup the IBT kbuild changes x86/Kconfig: Do not allow CONFIG_X86_X32_ABI=y with llvm-objcopy x86: Remove toolchain check for X32 ABI capability x86/alternative: Use .ibt_endbr_seal to seal indirect calls objtool: Find unused ENDBR instructions objtool: Validate IBT assumptions objtool: Add IBT/ENDBR decoding objtool: Read the NOENDBR annotation x86: Annotate idtentry_df() x86,objtool: Move the ASM_REACHABLE annotation to objtool.h x86: Annotate call_on_stack() objtool: Rework ASM_REACHABLE x86: Mark __invalid_creds() __noreturn exit: Mark do_group_exit() __noreturn x86: Mark stop_this_cpu() __noreturn objtool: Ignore extra-symbol code objtool: Rename --duplicate to --lto ...
2022-03-26selftests: tls: skip cmsg_to_pipe tests with TLS=nJakub Kicinski
These are negative tests, testing TLS code rejects certain operations. They won't pass without TLS enabled, pure TCP accepts those operations. Reported-by: Linux Kernel Functional Testing <lkft@linaro.org> Fixes: d87d67fd61ef ("selftests: tls: test splicing cmsgs") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-03-26perf evsel: Improve AMD IBS (Instruction-Based Sampling) error handling messagesKim Phillips
Improve the error message returned on failed perf_event_open() on AMD systems when using IBS (Instruction-Based Sampling). Output of executing 'perf record -e ibs_op// true' as a non root user BEFORE this patch (perf will add the 'u' modifier at the end to exclude kernel/hypervisor sampling): The sys_perf_event_open() syscall returned with 22 (Invalid argument)for event (ibs_op//u). /bin/dmesg | grep -i perf may provide additional information. Output after: AMD IBS can't exclude kernel events. Try running at a higher privilege level. Output of executing 'sudo perf record -e ibs_op// true' BEFORE this patch: Error: The sys_perf_event_open() syscall returned with 22 (Invalid argument) for event (ibs_op//). /bin/dmesg | grep -i perf may provide additional information. Output after: Error: Invalid event (ibs_op//) in per-thread mode, enable system wide with '-a'. Folowing the suggestion: $ sudo perf record -a -e ibs_op// true [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.664 MB perf.data (194 samples) ] $ Signed-off-by: Kim Phillips <kim.phillips@amd.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: João Martins <joao.m.martins@oracle.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Robert Richter <robert.richter@amd.com> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20220322221517.2510440-12-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-26perf python: Add perf_env stubs that will be needed in evsel__open_strerror()Arnaldo Carvalho de Melo
The AMD IBS error message enhancements will use these, but we're not using evsel__open_strerror() in the python binding so far. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-26perf tools: Enhance the matching of sub-commands abbreviationsWei Li
We support short command 'rec*' for 'record' and 'rep*' for 'report' in lots of sub-commands, but the matching is not quite strict currnetly. It may be puzzling sometime, like we mis-type a 'recport' to report but it will perform 'record' in fact without any message. To fix this, add a check to ensure that the short cmd is valid prefix of the real command. Committer testing: [root@quaco ~]# perf c2c re sleep 1 Usage: perf c2c {record|report} -v, --verbose be more verbose (show counter open errors, etc) # perf c2c rec sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.038 MB perf.data (16 samples) ] # perf c2c recport sleep 1 Usage: perf c2c {record|report} -v, --verbose be more verbose (show counter open errors, etc) # perf c2c record sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.038 MB perf.data (15 samples) ] # perf c2c records sleep 1 Usage: perf c2c {record|report} -v, --verbose be more verbose (show counter open errors, etc) # Signed-off-by: Wei Li <liwei391@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Hanjun Guo <guohanjun@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Rui Xiang <rui.xiang@huawei.com> Link: http://lore.kernel.org/lkml/20220325092032.2956161-1-liwei391@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-26libperf tests: Fix typo in perf_evlist__open() failure error messagesShunsuke Nakamura
This patch corrects typos in error messages. I should be "evlist", not "evsel" as the function that fails is perf_evlist__open(). Fixes: 3ce311afb5583cf3 ("libperf: Move to tools/lib/perf") Fixes: a7f3713f6bf207e6 ("libperf tests: Add test_stat_multiplexing test") Signed-off-by: Shunsuke Nakamura <nakamura.shun@fujitsu.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20220325043829.224045-2-nakamura.shun@fujitsu.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-26tools arm64: Import cputype.hAli Saidi
Bring-in the kernel's arch/arm64/include/asm/cputype.h into tools/ for arm64 to make use of all the core-type definitions in perf. Replace sysreg.h with the version already imported into tools/. Committer notes: Added an entry to tools/perf/check-headers.sh, so that we get notified when the original file in the kernel sources gets modified. Tester notes: LGTM. I did the testing on both my x86 and Arm64 platforms, thanks for the fixing up. Signed-off-by: Ali Saidi <alisaidi@amazon.com> Tested-by: Leo Yan <leo.yan@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andrew Kilroy <andrew.kilroy@arm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Li Huafei <lihuafei1@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nick.Forrington@arm.com Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20220324183323.31414-2-alisaidi@amazon.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-25selftests: test_vxlan_under_vrf: Fix broken test caseIdo Schimmel
The purpose of the last test case is to test VXLAN encapsulation and decapsulation when the underlay lookup takes place in a non-default VRF. This is achieved by enslaving the physical device of the tunnel to a VRF. The binding of the VXLAN UDP socket to the VRF happens when the VXLAN device itself is opened, not when its physical device is opened. This was also mentioned in the cited commit ("tests that moving the underlay from a VRF to another works when down/up the VXLAN interface"), but the test did something else. Fix it by reopening the VXLAN device instead of its physical device. Before: # ./test_vxlan_under_vrf.sh Checking HV connectivity [ OK ] Check VM connectivity through VXLAN (underlay in the default VRF) [ OK ] Check VM connectivity through VXLAN (underlay in a VRF) [FAIL] After: # ./test_vxlan_under_vrf.sh Checking HV connectivity [ OK ] Check VM connectivity through VXLAN (underlay in the default VRF) [ OK ] Check VM connectivity through VXLAN (underlay in a VRF) [ OK ] Fixes: 03f1c26b1c56 ("test/net: Add script for VXLAN underlay in a VRF") Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20220324200514.1638326-1-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-25Merge tag 'platform-drivers-x86-v5.18-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: "New drivers: - AMD Host System Management Port (HSMP) - Intel Software Defined Silicon Removed drivers (functionality folded into other drivers): - intel_cht_int33fe_microb - surface3_button amd-pmc: - s2idle bug-fixes - Support for AMD Spill to DRAM STB feature hp-wmi: - Fix SW_TABLET_MODE detection method (and other fixes) - Support omen thermal profile policy v1 serial-multi-instantiate: - Add SPI device support - Add support for CS35L41 amplifiers used in new laptops think-lmi: - syfs-class-firmware-attributes Certificate authentication support thinkpad_acpi: - Fixes + quirks - Add platform_profile support on AMD based ThinkPads x86-android-tablets: - Improve Asus ME176C / TF103C support - Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets Lots of various other small fixes and hardware-id additions" * tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (60 commits) platform/x86: think-lmi: Certificate authentication support Documentation: syfs-class-firmware-attributes: Lenovo Certificate support platform/x86: amd-pmc: Only report STB errors when STB enabled platform/x86: amd-pmc: Drop CPU QoS workaround platform/x86: amd-pmc: Output error codes in messages platform/x86: amd-pmc: Move to later in the suspend process ACPI / x86: Add support for LPS0 callback handler platform/x86: thinkpad_acpi: consistently check fan_get_status return. platform/x86: hp-wmi: support omen thermal profile policy v1 platform/x86: hp-wmi: Changing bios_args.data to be dynamically allocated platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method platform/x86: hp-wmi: Fix hp_wmi_read_int() reporting error (0x05) platform/x86: amd-pmc: Validate entry into the deepest state on resume platform/x86: thinkpad_acpi: Don't use test_bit on an integer platform/x86: thinkpad_acpi: Fix compiler warning about uninitialized err variable platform/x86: thinkpad_acpi: clean up dytc profile convert platform/x86: x86-android-tablets: Depend on EFI and SPI platform/x86: amd-pmc: uninitialized variable in amd_pmc_s2d_init() platform/x86: intel-uncore-freq: fix uncore_freq_common_init() error codes ...
2022-03-25perf lock: Add -F/--field option to control outputNamhyung Kim
The -F/--field option is to customize the list of fields to output: $ perf lock report -F contended,wait_max -k avg_wait Name contended max wait (ns) avg wait (ns) slock-AF_INET6 1 23543 23543 &lruvec->lru_lock 5 18317 11254 slock-AF_INET6 1 10379 10379 rcu_node_1 1 2104 2104 &dentry->d_lockr... 1 1844 1844 &dentry->d_lockr... 1 1672 1672 &newf->file_lock 15 2279 1025 &dentry->d_lockr... 1 792 792 Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220323230259.288494-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-25perf lock: Extend struct lock_key to have print functionNamhyung Kim
And use it to print output for each key field. No functional change intended and the output should be identical. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220323230259.288494-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-25perf lock: Add --synth=no option for recordNamhyung Kim
The perf lock command has nothing to symbolize and lock names come from the tracepoint. Moreover, kernel symbols are available even the --synth=no option is given. This will reduce the startup time by avoiding unnecessary synthesis. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220323230259.288494-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-25Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge yet more updates from Andrew Morton: "This is the material which was staged after willystuff in linux-next. Subsystems affected by this patch series: mm (debug, selftests, pagecache, thp, rmap, migration, kasan, hugetlb, pagemap, madvise), and selftests" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (113 commits) selftests: kselftest framework: provide "finished" helper mm: madvise: MADV_DONTNEED_LOCKED mm: fix race between MADV_FREE reclaim and blkdev direct IO read mm: generalize ARCH_HAS_FILTER_PGPROT mm: unmap_mapping_range_tree() with i_mmap_rwsem shared mm: warn on deleting redirtied only if accounted mm/huge_memory: remove stale locking logic from __split_huge_pmd() mm/huge_memory: remove stale page_trans_huge_mapcount() mm/swapfile: remove stale reuse_swap_page() mm/khugepaged: remove reuse_swap_page() usage mm/huge_memory: streamline COW logic in do_huge_pmd_wp_page() mm: streamline COW logic in do_swap_page() mm: slightly clarify KSM logic in do_swap_page() mm: optimize do_wp_page() for fresh pages in local LRU pagevecs mm: optimize do_wp_page() for exclusive pages in the swapcache mm/huge_memory: make is_transparent_hugepage() static userfaultfd/selftests: enable hugetlb remap and remove event testing selftests/vm: add hugetlb madvise MADV_DONTNEED MADV_REMOVE test mm: enable MADV_DONTNEED for hugetlb mappings kasan: disable LOCKDEP when printing reports ...
2022-03-25Merge tag 'riscv-for-linus-5.18-mw0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - Support for Sv57-based virtual memory. - Various improvements for the MicroChip PolarFire SOC and the associated Icicle dev board, which should allow upstream kernels to boot without any additional modifications. - An improved memmove() implementation. - Support for the new Ssconfpmf and SBI PMU extensions, which allows for a much more useful perf implementation on RISC-V systems. - Support for restartable sequences. * tag 'riscv-for-linus-5.18-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (36 commits) rseq/selftests: Add support for RISC-V RISC-V: Add support for restartable sequence MAINTAINERS: Add entry for RISC-V PMU drivers Documentation: riscv: Remove the old documentation RISC-V: Add sscofpmf extension support RISC-V: Add perf platform driver based on SBI PMU extension RISC-V: Add RISC-V SBI PMU extension definitions RISC-V: Add a simple platform driver for RISC-V legacy perf RISC-V: Add a perf core library for pmu drivers RISC-V: Add CSR encodings for all HPMCOUNTERS RISC-V: Remove the current perf implementation RISC-V: Improve /proc/cpuinfo output for ISA extensions RISC-V: Do no continue isa string parsing without correct XLEN RISC-V: Implement multi-letter ISA extension probing framework RISC-V: Extract multi-letter extension names from "riscv, isa" RISC-V: Minimal parser for "riscv, isa" strings RISC-V: Correctly print supported extensions riscv: Fixed misaligned memory access. Fixed pointer comparison. MAINTAINERS: update riscv/microchip entry riscv: dts: microchip: add new peripherals to icicle kit device tree ...
2022-03-25Merge tag 's390-5.18-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Vasily Gorbik: - Raise minimum supported machine generation to z10, which comes with various cleanups and code simplifications (usercopy/spectre mitigation/etc). - Rework extables and get rid of anonymous out-of-line fixups. - Page table helpers cleanup. Add set_pXd()/set_pte() helper functions. Covert pte_val()/pXd_val() macros to functions. - Optimize kretprobe handling by avoiding extra kprobe on __kretprobe_trampoline. - Add support for CEX8 crypto cards. - Allow to trigger AP bus rescan via writing to /sys/bus/ap/scans. - Add CONFIG_EXPOLINE_EXTERN option to build the kernel without COMDAT group sections which simplifies kpatch support. - Always use the packed stack layout and extend kernel unwinder tests. - Add sanity checks for ftrace code patching. - Add s390dbf debug log for the vfio_ap device driver. - Various virtual vs physical address confusion fixes. - Various small fixes and improvements all over the code. * tag 's390-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (69 commits) s390/test_unwind: add kretprobe tests s390/kprobes: Avoid additional kprobe in kretprobe handling s390: convert ".insn" encoding to instruction names s390: assume stckf is always present s390/nospec: move to single register thunks s390: raise minimum supported machine generation to z10 s390/uaccess: Add copy_from/to_user_key functions s390/nospec: align and size extern thunks s390/nospec: add an option to use thunk-extern s390/nospec: generate single register thunks if possible s390/pci: make zpci_set_irq()/zpci_clear_irq() static s390: remove unused expoline to BC instructions s390/irq: use assignment instead of cast s390/traps: get rid of magic cast for per code s390/traps: get rid of magic cast for program interruption code s390/signal: fix typo in comments s390/asm-offsets: remove unused defines s390/test_unwind: avoid build warning with W=1 s390: remove .fixup section s390/bpf: encode register within extable entry ...
2022-03-25Merge tag 'powerpc-5.18-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "Livepatch support for 32-bit is probably the standout new feature, otherwise mostly just lots of bits and pieces all over the board. There's a series of commits cleaning up function descriptor handling, which touches a few other arches as well as LKDTM. It has acks from Arnd, Kees and Helge. Summary: - Enforce kernel RO, and implement STRICT_MODULE_RWX for 603. - Add support for livepatch to 32-bit. - Implement CONFIG_DYNAMIC_FTRACE_WITH_ARGS. - Merge vdso64 and vdso32 into a single directory. - Fix build errors with newer binutils. - Add support for UADDR64 relocations, which are emitted by some toolchains. This allows powerpc to build with the latest lld. - Fix (another) potential userspace r13 corruption in transactional memory handling. - Cleanups of function descriptor handling & related fixes to LKDTM. Thanks to Abdul Haleem, Alexey Kardashevskiy, Anders Roxell, Aneesh Kumar K.V, Anton Blanchard, Arnd Bergmann, Athira Rajeev, Bhaskar Chowdhury, Cédric Le Goater, Chen Jingwen, Christophe JAILLET, Christophe Leroy, Corentin Labbe, Daniel Axtens, Daniel Henrique Barboza, David Dai, Fabiano Rosas, Ganesh Goudar, Guo Zhengkui, Hangyu Hua, Haren Myneni, Hari Bathini, Igor Zhbanov, Jakob Koschel, Jason Wang, Jeremy Kerr, Joachim Wiberg, Jordan Niethe, Julia Lawall, Kajol Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Mamatha Inamdar, Maxime Bizon, Maxim Kiselev, Maxim Kochetkov, Michal Suchanek, Nageswara R Sastry, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nour-eddine Taleb, Paul Menzel, Ping Fang, Pratik R. Sampat, Randy Dunlap, Ritesh Harjani, Rohan McLure, Russell Currey, Sachin Sant, Segher Boessenkool, Shivaprasad G Bhat, Sourabh Jain, Thierry Reding, Tobias Waldekranz, Tyrel Datwyler, Vaibhav Jain, Vladimir Oltean, Wedson Almeida Filho, and YueHaibing" * tag 'powerpc-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (179 commits) powerpc/pseries: Fix use after free in remove_phb_dynamic() powerpc/time: improve decrementer clockevent processing powerpc/time: Fix KVM host re-arming a timer beyond decrementer range powerpc/tm: Fix more userspace r13 corruption powerpc/xive: fix return value of __setup handler powerpc/64: Add UADDR64 relocation support powerpc: 8xx: fix a return value error in mpc8xx_pic_init powerpc/ps3: remove unneeded semicolons powerpc/64: Force inlining of prevent_user_access() and set_kuap() powerpc/bitops: Force inlining of fls() powerpc: declare unmodified attribute_group usages const powerpc/spufs: Fix build warning when CONFIG_PROC_FS=n powerpc/secvar: fix refcount leak in format_show() powerpc/64e: Tie PPC_BOOK3E_64 to PPC_FSL_BOOK3E powerpc: Move C prototypes out of asm-prototypes.h powerpc/kexec: Declare kexec_paca static powerpc/smp: Declare current_set static powerpc: Cleanup asm-prototypes.c powerpc/ftrace: Use STK_GOT in ftrace_mprofile.S powerpc/ftrace: Regroup PPC64 specific operations in ftrace_mprofile.S ...
2022-03-24selftests: kselftest framework: provide "finished" helperKees Cook
Instead of having each time that wants to use ksft_exit() have to figure out the internals of kselftest.h, add the helper ksft_finished() that makes sure the passes, xfails, and skips are equal to the test plan count. Link: https://lkml.kernel.org/r/20220201013717.2464392-1-keescook@chromium.org Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24userfaultfd/selftests: enable hugetlb remap and remove event testingMike Kravetz
With MADV_DONTNEED support added to hugetlb mappings, mremap testing can also be enabled for hugetlb. Modify the tests to use madvise MADV_DONTNEED and MADV_REMOVE instead of fallocate hole puch for releasing hugetlb pages. Link: https://lkml.kernel.org/r/20220215002348.128823-4-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by: Axel Rasmussen <axelrasmussen@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: David Hildenbrand <david@redhat.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Mina Almasry <almasrymina@google.com> Cc: Naoya Horiguchi <naoya.horiguchi@linux.dev> Cc: Peter Xu <peterx@redhat.com> Cc: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24selftests/vm: add hugetlb madvise MADV_DONTNEED MADV_REMOVE testMike Kravetz
Now that MADV_DONTNEED support for hugetlb is enabled, add corresponding tests. MADV_REMOVE has been enabled for some time, but no tests exist so add them as well. Link: https://lkml.kernel.org/r/20220215002348.128823-3-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: David Hildenbrand <david@redhat.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Mina Almasry <almasrymina@google.com> Cc: Naoya Horiguchi <naoya.horiguchi@linux.dev> Cc: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24selftest/vm: add helpers to detect PAGE_SIZE and PAGE_SHIFTMike Rapoport
PAGE_SIZE is not 4096 in many configurations, particularly ppc64 uses 64K pages in majority of cases. Add helpers to detect PAGE_SIZE and PAGE_SHIFT dynamically. Without this tests are broken w.r.t reading /proc/self/pagemap if (pread(pagemap_fd, ent, sizeof(ent), (uintptr_t)ptr >> (PAGE_SHIFT - 3)) != sizeof(ent)) err(2, "read pagemap"); Link: https://lkml.kernel.org/r/20220307054355.149820-2-aneesh.kumar@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24selftest/vm: add util.h and and move helper functions thereAneesh Kumar K.V
Avoid code duplication by adding util.h. No functional change in this patch. Link: https://lkml.kernel.org/r/20220307054355.149820-1-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: support for user-defined culling rulesJiajian Ye
When viewing page owner information, we may want to cull blocks of information with our own rules. So it is important to enhance culling function to provide the support for customizing culling rules. Therefore, following adjustments are made: 1. Add --cull option to support the culling of blocks of information with user-defined culling rules. ./page_owner_sort <input> <output> --cull=<rules> ./page_owner_sort <input> <output> --cull <rules> <rules> is a single argument in the form of a comma-separated list to specify individual culling rules, by the sequence of keys k1,k2, .... Mixed use of abbreviated and complete-form of keys is allowed. For reference, please see the document(Documentation/vm/page_owner.rst). Now, assuming two blocks in the input file are as follows: Page allocated via order 0, mask xxxx, pid 1, tgid 1 (task_name_demo) PFN xxxx prep_new_page+0xd0/0xf8 get_page_from_freelist+0x4a0/0x1290 __alloc_pages+0x168/0x340 alloc_pages+0xb0/0x158 Page allocated via order 0, mask xxxx, pid 32, tgid 32 (task_name_demo) PFN xxxx prep_new_page+0xd0/0xf8 get_page_from_freelist+0x4a0/0x1290 __alloc_pages+0x168/0x340 alloc_pages+0xb0/0x158 If we want to cull the blocks by stacktrace and task command name, we can use this command: ./page_owner_sort <input> <output> --cull=stacktrace,name The output would be like: 2 times, 2 pages, task_comm_name: task_name_demo prep_new_page+0xd0/0xf8 get_page_from_freelist+0x4a0/0x1290 __alloc_pages+0x168/0x340 alloc_pages+0xb0/0x158 As we can see, these two blocks are culled successfully, for they share the same pid and task command name. However, if we want to cull the blocks by pid, stacktrace and task command name, we can this command: ./page_owner_sort <input> <output> --cull=stacktrace,name,pid The output would be like: 1 times, 1 pages, PID 1, task_comm_name: task_name_demo prep_new_page+0xd0/0xf8 get_page_from_freelist+0x4a0/0x1290 __alloc_pages+0x168/0x340 alloc_pages+0xb0/0x158 1 times, 1 pages, PID 32, task_comm_name: task_name_demo prep_new_page+0xd0/0xf8 get_page_from_freelist+0x4a0/0x1290 __alloc_pages+0x168/0x340 alloc_pages+0xb0/0x158 As we can see, these two blocks are failed to cull, for their PIDs are different. 2. Add explanations of --cull options to the document. This work is coauthored by Yixuan Cao Shenghong Han Yinan Zhang Chongxi Zhao Yuhong Feng Link: https://lkml.kernel.org/r/20220312145834.624-1-yejiajian2018@email.szu.edu.cn Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn> Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn> Cc: Shenghong Han <hanshenghong2019@email.szu.edu.cn> Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn> Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn> Cc: Yuhong Feng <yuhongf@szu.edu.cn> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Sean Anderson <seanga2@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: support for selecting by PID, TGID or task ↵Jiajian Ye
command name When viewing page owner information, we may also need to select the blocks by PID, TGID or task command name, which helps to get more accurate page allocation information as needed. Therefore, following adjustments are made: 1. Add three new options, including --pid, --tgid and --name, to support the selection of information blocks by a specific pid, tgid and task command name. In addtion, multiple options are allowed to be used at the same time. ./page_owner_sort [input] [output] --pid <PID> ./page_owner_sort [input] [output] --tgid <TGID> ./page_owner_sort [input] [output] --name <TASK_COMMAND_NAME> Assuming a scenario when a multi-threaded program, ./demo (PID = 5280), is running, and ./demo creates a child process (PID = 5281). $ps PID TTY TIME CMD 5215 pts/0 00:00:00 bash 5280 pts/0 00:00:00 ./demo 5281 pts/0 00:00:00 ./demo 5282 pts/0 00:00:00 ps It would be better to filter out the records with tgid=5280 and the task name "demo" when debugging the parent process, and the specific usage is ./page_owner_sort [input] [output] --tgid 5280 --name demo 2. Add explanations of three new options, including --pid, --tgid and --name, to the document. This work is coauthored by Shenghong Han <hanshenghong2019@email.szu.edu.cn>, Yixuan Cao <caoyixuan2019@email.szu.edu.cn>, Yinan Zhang <zhangyinan2019@email.szu.edu.cn>, Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>, Yuhong Feng <yuhongf@szu.edu.cn>. Link: https://lkml.kernel.org/r/1646835223-7584-1-git-send-email-yejiajian2018@email.szu.edu.cn Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn> Cc: Sean Anderson <seanga2@gmail.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Zhenliang Wei <weizhenliang@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort: support for sorting by task command nameJiajian Ye
When viewing page owner information, we may also need to the block to be sorted by task command name. Therefore, the following adjustments are made: 1. Add a member variable to record task command name of block. 2. Add a new -n option to sort the information of blocks by task command name. 3. Add -n option explanation in the document. Link: https://lkml.kernel.org/r/20220306030640.43054-2-yejiajian2018@email.szu.edu.cn Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Sean Anderson <seanga2@gmail.com> Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn> Cc: Zhenliang Wei <weizhenliang@huawei.com> Cc: <zhaochongxi2019@email.szu.edu.cn> Cc: <hanshenghong2019@email.szu.edu.cn> Cc: <zhangyinan2019@email.szu.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort: fix three trivival placesJiajian Ye
The following adjustments are made: 1. Instead of using another array to cull the blocks after sorting, reuse the old array. So there is no need to malloc a new array. 2. When enabling '-f' option to filter out the blocks which have been released, only add those have not been released in the list, rather than add all of blocks in the list and then do the filtering when printing the result. 3. When enabling '-c' option to cull the blocks by comparing stacktrace, print the stacetrace rather than the total block. Link: https://lkml.kernel.org/r/20220306030640.43054-1-yejiajian2018@email.szu.edu.cn Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn> Cc: <hanshenghong2019@email.szu.edu.cn> Cc: Sean Anderson <seanga2@gmail.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn> Cc: <zhangyinan2019@email.szu.edu.cn> Cc: Zhenliang Wei <weizhenliang@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: support sorting by tgid and update documentationJiajian Ye
When the "page owner" information is read, the information sorted by TGID is expected. As a result, the following adjustments have been made: 1. Add a new -P option to sort the information of blocks by TGID in ascending order. 2. Adjust the order of member variables in block_list strust to avoid one 4 byte hole. 3. Add -P option explanation in the document. Link: https://lkml.kernel.org/r/20220301151438.166118-3-yejiajian2018@email.szu.edu.cn Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn> Cc: Zhenliang Wei <weizhenliang@huawei.com> Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: add a security checkJiajian Ye
Add a security check after using malloc() to allocate memory. Link: https://lkml.kernel.org/r/20220301151438.166118-2-yejiajian2018@email.szu.edu.cn Signed-off-by: Jiajian Ye <yejiajian2018@email.szu.edu.cn> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn> Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn> Cc: Zhenliang Wei <weizhenliang@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: fix the instructions for useYixuan Cao
I noticed a discrepancy between the usage method and the code logic. If we enable the -f option, it should be "Filter out the information of blocks whose memory has been released". Link: https://lkml.kernel.org/r/20220219143106.2805-1-caoyixuan2019@email.szu.edu.cn Signed-off-by: Yixuan Cao <caoyixuan2019@email.szu.edu.cn> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Sean Anderson <seanga2@gmail.com> Cc: Muchun Song <songmuchun@bytedance.com> Cc: Zhenliang Wei <weizhenliang@huawei.com> Cc: Tang Bin <tangbin@cmss.chinamobile.com> Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: delete invalid duplicate codeYixuan Cao
I noticed that there is two invalid lines of duplicate code. It's better to delete it. Link: https://lkml.kernel.org/r/20211213095743.3630-1-caoyixuan2019@email.szu.edu.cn Signed-off-by: Yixuan Cao <caoyixuan2019@email.szu.edu.cn> Cc: Mark Brown <broonie@kernel.org> Cc: Sean Anderson <seanga2@gmail.com> Cc: Zhenliang Wei <weizhenliang@huawei.com> Cc: Tang Bin <tangbin@cmss.chinamobile.com> Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: two trivial fixesShenghong Han
1) There is an unused variable. It's better to delete it. 2) One case is missing in the usage(). Link: https://lkml.kernel.org/r/20211213164518.2461-1-hanshenghong2019@email.szu.edu.cn Signed-off-by: Shenghong Han <hanshenghong2019@email.szu.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: support sorting pid and timeChongxi Zhao
When viewing the page owner information, we expect that the information can be sorted by PID, so that we can quickly combine PID with the program to check the information together. We also expect that the information can be sorted by time. Time sorting helps to view the running status of the program according to the time interval when the program hangs up. Finally, we hope to pass the page_ owner_ Sort. C can reduce part of the output and only output the plate information whose memory has not been released, which can make us locate the problem of the program faster. Therefore, the following adjustments have been made: 1. Add the static functions search_pattern and check_regcomp to improve the cleanliness. 2. Add member attributes and their corresponding sorting methods. In terms of comparison time, int will overflow because the data of ull is too large, so the ternary operator is used 3. Add the -f parameter to filter out the information of blocks whose memory has not been released Link: https://lkml.kernel.org/r/20211206165653.5093-1-zhaochongxi2019@email.szu.edu.cn Signed-off-by: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn> Reviewed-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: add switch between culling by stacktrace and txtYinan Zhang
Culling by comparing stacktrace would casue loss of some information. For example, if there exists 2 blocks which have the same stacktrace and the different head info Page allocated via order 0, mask 0x108c48(...), pid 73696, ts 1578829190639010 ns, free_ts 1576583851324450 ns prep_new_page+0x80/0xb8 get_page_from_freelist+0x924/0xee8 __alloc_pages+0x138/0xc18 alloc_pages+0x80/0xf0 __page_cache_alloc+0x90/0xc8 Page allocated via order 0, mask 0x108c48(...), pid 61806, ts 1354113726046100 ns, free_ts 1354104926841400 ns prep_new_page+0x80/0xb8 get_page_from_freelist+0x924/0xee8 __alloc_pages+0x138/0xc18 alloc_pages+0x80/0xf0 __page_cache_alloc+0x90/0xc8 After culling, it would be like this 2 times, 2 pages: Page allocated via order 0, mask 0x108c48(...), pid 73696, ts 1578829190639010 ns, free_ts 1576583851324450 ns prep_new_page+0x80/0xb8 get_page_from_freelist+0x924/0xee8 __alloc_pages+0x138/0xc18 alloc_pages+0x80/0xf0 __page_cache_alloc+0x90/0xc8 The info of second block missed. So, add -c to turn on culling by stacktrace. By default, it will cull by txt. Link: https://lkml.kernel.org/r/20211129145658.2491-1-zhangyinan2019@email.szu.edu.cn Signed-off-by: Yinan Zhang <zhangyinan2019@email.szu.edu.cn> Cc: Changhee Han <ch0.han@lge.com> Cc: Sean Anderson <seanga2@gmail.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Tang Bin <tangbin@cmss.chinamobile.com> Cc: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Cc: Zhenliang Wei <weizhenliang@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: support sorting by stack traceSean Anderson
This adds the ability to sort by stacktraces. This is helpful when comparing multiple dumps of page_owner taken at different times, since blocks will not be reordered if they were allocated/free'd. Link: https://lkml.kernel.org/r/20211124193709.1805776-2-seanga2@gmail.com Signed-off-by: Sean Anderson <seanga2@gmail.com> Cc: Zhenliang Wei <weizhenliang@huawei.com> Cc: Changhee Han <ch0.han@lge.com> Cc: Tang Bin <tangbin@cmss.chinamobile.com> Cc: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24tools/vm/page_owner_sort.c: sort by stacktrace before cullingSean Anderson
The contents of page_owner have changed to include more information than the stack trace. On a modern kernel, the blocks look like Page allocated via order 0, mask 0x0(), pid 1, ts 165564237 ns, free_ts 0 ns register_early_stack+0x4b/0x90 init_page_owner+0x39/0x250 kernel_init_freeable+0x11e/0x242 kernel_init+0x16/0x130 Sorting by the contents of .txt will result in almost no repeated pages, as the pid, ts, and free_ts will almost never be the same. Instead, sort by the contents of the stack trace, which we assume to be whatever is after the first line. [seanga2@gmail.com: fix NULL-pointer dereference when comparing stack traces] Link: https://lkml.kernel.org/r/20211125162653.1855958-1-seanga2@gmail.com Link: https://lkml.kernel.org/r/20211124193709.1805776-1-seanga2@gmail.com Signed-off-by: Sean Anderson <seanga2@gmail.com> Cc: Changhee Han <ch0.han@lge.com> Cc: Tang Bin <tangbin@cmss.chinamobile.com> Cc: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Cc: Zhenliang Wei <weizhenliang@huawei.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Yinan Zhang <zhangyinan2019@email.szu.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-24Merge tag 'cxl-for-5.18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull CXL (Compute Express Link) updates from Dan Williams: "This development cycle extends the subsystem to discover CXL resources throughout a CXL/PCIe switch topology and respond to hot add/remove events anywhere in that topology. This is more foundational infrastructure in preparation for dynamic memory region provisioning support. Recall that CXL memory regions, as the new "Theory of Operation" section of Documentation/driver-api/cxl/memory-devices.rst describes, bring storage volume striping semantics to memory. The hot add/remove behavior is validated with extensions to the cxl_test unit test environment and this test in the cxl-cli test suite: https://github.com/pmem/ndctl/blob/djbw/for-74/cxl/test/cxl-topology.sh Summary: - Add a driver for 'struct cxl_memdev' objects responsible for CXL.mem operation as distinct from 'cxl_pci' mailbox operations. Its primary responsibility is enumerating an endpoint 'struct cxl_port' and all the 'struct cxl_port' instances between an endpoint and the CXL platform root. - Add a driver for 'struct cxl_port' objects responsible for enumerating and operating all Host-managed Device Memory (HDM) decoder resources between the platform-level CXL memory description, all intervening host bridges / switches, and the HDM resources in endpoints. - Update the cxl_pci driver to validate CXL.mem operation precursors to HDM decoder operation like ready-polling, and legacy CXL 1.1 DVSEC based CXL.mem configuration. - Add basic lockdep coverage for usage of device_lock() on CXL subsystem objects similar to what exists for LIBNVDIMM. Include a compile-time switch for which subsystem to validate at run-time. - Update cxl_test to emulate a one level switch topology. - Document a "Theory of Operation" for the subsystem. - Add 'numa_node' and 'serial' attributes to cxl_memdev sysfs - Include miscellaneous fixes for spec / QEMU CXL emulation compatibility and static analysis reports" * tag 'cxl-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (48 commits) cxl/core/port: Fix NULL but dereferenced coccicheck error cxl/port: Hold port reference until decoder release cxl/port: Fix endpoint refcount leak cxl/core: Fix cxl_device_lock() class detection cxl/core/port: Fix unregister_port() lock assertion cxl/regs: Fix size of CXL Capability Header Register cxl/core/port: Handle invalid decoders cxl/core/port: Fix / relax decoder target enumeration tools/testing/cxl: Add a physical_node link tools/testing/cxl: Enumerate mock decoders tools/testing/cxl: Mock one level of switches tools/testing/cxl: Fix root port to host bridge assignment tools/testing/cxl: Mock dvsec_ranges() cxl/core/port: Add endpoint decoders cxl/core: Move target_list out of base decoder attributes cxl/mem: Add the cxl_mem driver cxl/core/port: Add switch port enumeration cxl/memdev: Add numa_node attribute cxl/pci: Emit device serial number cxl/pci: Implement wait for media active ...
2022-03-24Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge more updates from Andrew Morton: "Various misc subsystems, before getting into the post-linux-next material. 41 patches. Subsystems affected by this patch series: procfs, misc, core-kernel, lib, checkpatch, init, pipe, minix, fat, cgroups, kexec, kdump, taskstats, panic, kcov, resource, and ubsan" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (41 commits) Revert "ubsan, kcsan: Don't combine sanitizer with kcov on clang" kernel/resource: fix kfree() of bootmem memory again kcov: properly handle subsequent mmap calls kcov: split ioctl handling into locked and unlocked parts panic: move panic_print before kmsg dumpers panic: add option to dump all CPUs backtraces in panic_print docs: sysctl/kernel: add missing bit to panic_print taskstats: remove unneeded dead assignment kasan: no need to unset panic_on_warn in end_report() ubsan: no need to unset panic_on_warn in ubsan_epilogue() panic: unset panic_on_warn inside panic() docs: kdump: add scp example to write out the dump file docs: kdump: update description about sysfs file system support arm64: mm: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef x86/setup: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef riscv: mm: init: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef kexec: make crashk_res, crashk_low_res and crash_notes symbols always visible cgroup: use irqsave in cgroup_rstat_flush_locked(). fat: use pointer to simple type in put_user() minix: fix bug when opening a file with O_DIRECT ...
2022-03-24tools headers cpufeatures: Sync with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes from: fa31a4d669bd471e ("x86/cpufeatures: Put the AMX macros in the word 18 block") 7b8f40b3de75c971 ("x86/cpu: Add definitions for the Intel Hardware Feedback Interface") This only causes these perf files to be rebuilt: CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o And addresses this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h' diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h Cc: Borislav Petkov <bp@suse.de> Cc: Jim Mattson <jmattson@google.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> Link: https://lore.kernel.org/lkml/YjzZPxdyLjf76gM+@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-24tools headers cpufeatures: Sync with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 7c1ef59145f1c8bf ("x86/cpufeatures: Re-enable ENQCMD") That causes only these 'perf bench' objects to rebuild: CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o And addresses these perf build warnings: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h' diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h Cc: Borislav Petkov <bp@suse.de> Cc: Fenghua Yu <fenghua.yu@intel.com> Link: https://lore.kernel.org/lkml/YjzX+PknzGoKaGMX@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-24perf stat: Fix forked applications enablement of countersThomas Richter
I have run into the following issue: # perf stat -a -e new_pmu/INSTRUCTION_7/ -- mytest -c1 7 Performance counter stats for 'system wide': 0 new_pmu/INSTRUCTION_7/ 0.000366428 seconds time elapsed # The new PMU for s390 counts the execution of certain CPU instructions. The root cause is the extremely small run time of the mytest program. It just executes some assembly instructions and then exits. In above invocation the instruction is executed exactly one time (-c1 option). The PMU is expected to report this one time execution by a counter value of one, but fails to do so in some cases, not all. Debugging reveals the invocation of the child process is done *before* the counter events are installed and enabled. Tracing reveals that sometimes the child process starts and exits before the event is installed on all CPUs. The more CPUs the machine has, the more often this miscount happens. Fix this by reversing the start of the work load after the events have been installed on the specified CPUs. Now the comment also matches the code. Output after: # perf stat -a -e new_pmu/INSTRUCTION_7/ -- mytest -c1 7 Performance counter stats for 'system wide': 1 new_pmu/INSTRUCTION_7/ 0.000366428 seconds time elapsed # Now the correct result is reported rock solid all the time regardless how many CPUs are online. Reviewers notes: Jiri: Right, without -a the event has enable_on_exec so the race does not matter, but it's a problem for system wide with fork. Namhyung: Agreed. Also we may move the enable_counters() and the clock code out of the if block to be shared with the else block. Fixes: acf2892270dcc428 ("perf stat: Use perf_evlist__prepare/start_workload()") Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Link: https://lore.kernel.org/r/20220317155346.577384-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-24tools arch x86: Sync the msr-index.h copy with the kernel sourcesArnaldo Carvalho de Melo
To pick up the changes from these csets: 7b8f40b3de75c971 ("x86/cpu: Add definitions for the Intel Hardware Feedback Interface") That cause no changes to tooling: $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after $ diff -u before after $ Just silences this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h' diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> Link: https://lore.kernel.org/lkml/YjzVt8CjAORAsTCo@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-03-24Merge tag 'net-next-5.18' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "The sprinkling of SPI drivers is because we added a new one and Mark sent us a SPI driver interface conversion pull request. Core ---- - Introduce XDP multi-buffer support, allowing the use of XDP with jumbo frame MTUs and combination with Rx coalescing offloads (LRO). - Speed up netns dismantling (5x) and lower the memory cost a little. Remove unnecessary per-netns sockets. Scope some lists to a netns. Cut down RCU syncing. Use batch methods. Allow netdev registration to complete out of order. - Support distinguishing timestamp types (ingress vs egress) and maintaining them across packet scrubbing points (e.g. redirect). - Continue the work of annotating packet drop reasons throughout the stack. - Switch netdev error counters from an atomic to dynamically allocated per-CPU counters. - Rework a few preempt_disable(), local_irq_save() and busy waiting sections problematic on PREEMPT_RT. - Extend the ref_tracker to allow catching use-after-free bugs. BPF --- - Introduce "packing allocator" for BPF JIT images. JITed code is marked read only, and used to be allocated at page granularity. Custom allocator allows for more efficient memory use, lower iTLB pressure and prevents identity mapping huge pages from getting split. - Make use of BTF type annotations (e.g. __user, __percpu) to enforce the correct probe read access method, add appropriate helpers. - Convert the BPF preload to use light skeleton and drop the user-mode-driver dependency. - Allow XDP BPF_PROG_RUN test infra to send real packets, enabling its use as a packet generator. - Allow local storage memory to be allocated with GFP_KERNEL if called from a hook allowed to sleep. - Introduce fprobe (multi kprobe) to speed up mass attachment (arch bits to come later). - Add unstable conntrack lookup helpers for BPF by using the BPF kfunc infra. - Allow cgroup BPF progs to return custom errors to user space. - Add support for AF_UNIX iterator batching. - Allow iterator programs to use sleepable helpers. - Support JIT of add, and, or, xor and xchg atomic ops on arm64. - Add BTFGen support to bpftool which allows to use CO-RE in kernels without BTF info. - Large number of libbpf API improvements, cleanups and deprecations. Protocols --------- - Micro-optimize UDPv6 Tx, gaining up to 5% in test on dummy netdev. - Adjust TSO packet sizes based on min_rtt, allowing very low latency links (data centers) to always send full-sized TSO super-frames. - Make IPv6 flow label changes (AKA hash rethink) more configurable, via sysctl and setsockopt. Distinguish between server and client behavior. - VxLAN support to "collect metadata" devices to terminate only configured VNIs. This is similar to VLAN filtering in the bridge. - Support inserting IPv6 IOAM information to a fraction of frames. - Add protocol attribute to IP addresses to allow identifying where given address comes from (kernel-generated, DHCP etc.) - Support setting socket and IPv6 options via cmsg on ping6 sockets. - Reject mis-use of ECN bits in IP headers as part of DSCP/TOS. Define dscp_t and stop taking ECN bits into account in fib-rules. - Add support for locked bridge ports (for 802.1X). - tun: support NAPI for packets received from batched XDP buffs, doubling the performance in some scenarios. - IPv6 extension header handling in Open vSwitch. - Support IPv6 control message load balancing in bonding, prevent neighbor solicitation and advertisement from using the wrong port. Support NS/NA monitor selection similar to existing ARP monitor. - SMC - improve performance with TCP_CORK and sendfile() - support auto-corking - support TCP_NODELAY - MCTP (Management Component Transport Protocol) - add user space tag control interface - I2C binding driver (as specified by DMTF DSP0237) - Multi-BSSID beacon handling in AP mode for WiFi. - Bluetooth: - handle MSFT Monitor Device Event - add MGMT Adv Monitor Device Found/Lost events - Multi-Path TCP: - add support for the SO_SNDTIMEO socket option - lots of selftest cleanups and improvements - Increase the max PDU size in CAN ISOTP to 64 kB. Driver API ---------- - Add HW counters for SW netdevs, a mechanism for devices which offload packet forwarding to report packet statistics back to software interfaces such as tunnels. - Select the default NIC queue count as a fraction of number of physical CPU cores, instead of hard-coding to 8. - Expose devlink instance locks to drivers. Allow device layer of drivers to use that lock directly instead of creating their own which always runs into ordering issues in devlink callbacks. - Add header/data split indication to guide user space enabling of TCP zero-copy Rx. - Allow configuring completion queue event size. - Refactor page_pool to enable fragmenting after allocation. - Add allocation and page reuse statistics to page_pool. - Improve Multiple Spanning Trees support in the bridge to allow reuse of topologies across VLANs, saving HW resources in switches. - DSA (Distributed Switch Architecture): - replay and offload of host VLAN entries - offload of static and local FDB entries on LAG interfaces - FDB isolation and unicast filtering New hardware / drivers ---------------------- - Ethernet: - LAN937x T1 PHYs - Davicom DM9051 SPI NIC driver - Realtek RTL8367S, RTL8367RB-VB switch and MDIO - Microchip ksz8563 switches - Netronome NFP3800 SmartNICs - Fungible SmartNICs - MediaTek MT8195 switches - WiFi: - mt76: MediaTek mt7916 - mt76: MediaTek mt7921u USB adapters - brcmfmac: Broadcom BCM43454/6 - Mobile: - iosm: Intel M.2 7360 WWAN card Drivers ------- - Convert many drivers to the new phylink API built for split PCS designs but also simplifying other cases. - Intel Ethernet NICs: - add TTY for GNSS module for E810T device - improve AF_XDP performance - GTP-C and GTP-U filter offload - QinQ VLAN support - Mellanox Ethernet NICs (mlx5): - support xdp->data_meta - multi-buffer XDP - offload tc push_eth and pop_eth actions - Netronome Ethernet NICs (nfp): - flow-independent tc action hardware offload (police / meter) - AF_XDP - Other Ethernet NICs: - at803x: fiber and SFP support - xgmac: mdio: preamble suppression and custom MDC frequencies - r8169: enable ASPM L1.2 if system vendor flags it as safe - macb/gem: ZynqMP SGMII - hns3: add TX push mode - dpaa2-eth: software TSO - lan743x: multi-queue, mdio, SGMII, PTP - axienet: NAPI and GRO support - Mellanox Ethernet switches (mlxsw): - source and dest IP address rewrites - RJ45 ports - Marvell Ethernet switches (prestera): - basic routing offload - multi-chain TC ACL offload - NXP embedded Ethernet switches (ocelot & felix): - PTP over UDP with the ocelot-8021q DSA tagging protocol - basic QoS classification on Felix DSA switch using dcbnl - port mirroring for ocelot switches - Microchip high-speed industrial Ethernet (sparx5): - offloading of bridge port flooding flags - PTP Hardware Clock - Other embedded switches: - lan966x: PTP Hardward Clock - qca8k: mdio read/write operations via crafted Ethernet packets - Qualcomm 802.11ax WiFi (ath11k): - add LDPC FEC type and 802.11ax High Efficiency data in radiotap - enable RX PPDU stats in monitor co-exist mode - Intel WiFi (iwlwifi): - UHB TAS enablement via BIOS - band disablement via BIOS - channel switch offload - 32 Rx AMPDU sessions in newer devices - MediaTek WiFi (mt76): - background radar detection - thermal management improvements on mt7915 - SAR support for more mt76 platforms - MBSSID and 6 GHz band on mt7915 - RealTek WiFi: - rtw89: AP mode - rtw89: 160 MHz channels and 6 GHz band - rtw89: hardware scan - Bluetooth: - mt7921s: wake on Bluetooth, SCO over I2S, wide-band-speed (WBS) - Microchip CAN (mcp251xfd): - multiple RX-FIFOs and runtime configurable RX/TX rings - internal PLL, runtime PM handling simplification - improve chip detection and error handling after wakeup" * tag 'net-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2521 commits) llc: fix netdevice reference leaks in llc_ui_bind() drivers: ethernet: cpsw: fix panic when interrupt coaleceing is set via ethtool ice: don't allow to run ice_send_event_to_aux() in atomic ctx ice: fix 'scheduling while atomic' on aux critical err interrupt net/sched: fix incorrect vlan_push_eth dest field net: bridge: mst: Restrict info size queries to bridge ports net: marvell: prestera: add missing destroy_workqueue() in prestera_module_init() drivers: net: xgene: Fix regression in CRC stripping net: geneve: add missing netlink policy and size for IFLA_GENEVE_INNER_PROTO_INHERIT net: dsa: fix missing host-filtered multicast addresses net/mlx5e: Fix build warning, detected write beyond size of field iwlwifi: mvm: Don't fail if PPAG isn't supported selftests/bpf: Fix kprobe_multi test. Revert "rethook: x86: Add rethook x86 implementation" Revert "arm64: rethook: Add arm64 rethook implementation" Revert "powerpc: Add rethook support" Revert "ARM: rethook: Add rethook arm implementation" netdevice: add missing dm_private kdoc net: bridge: mst: prevent NULL deref in br_mst_info_size() selftests: forwarding: Use same VRF for port and VLAN upper ...
2022-03-24Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm updates from Paolo Bonzini: "ARM: - Proper emulation of the OSLock feature of the debug architecture - Scalibility improvements for the MMU lock when dirty logging is on - New VMID allocator, which will eventually help with SVA in VMs - Better support for PMUs in heterogenous systems - PSCI 1.1 support, enabling support for SYSTEM_RESET2 - Implement CONFIG_DEBUG_LIST at EL2 - Make CONFIG_ARM64_ERRATUM_2077057 default y - Reduce the overhead of VM exit when no interrupt is pending - Remove traces of 32bit ARM host support from the documentation - Updated vgic selftests - Various cleanups, doc updates and spelling fixes RISC-V: - Prevent KVM_COMPAT from being selected - Optimize __kvm_riscv_switch_to() implementation - RISC-V SBI v0.3 support s390: - memop selftest - fix SCK locking - adapter interruptions virtualization for secure guests - add Claudio Imbrenda as maintainer - first step to do proper storage key checking x86: - Continue switching kvm_x86_ops to static_call(); introduce static_call_cond() and __static_call_ret0 when applicable. - Cleanup unused arguments in several functions - Synthesize AMD 0x80000021 leaf - Fixes and optimization for Hyper-V sparse-bank hypercalls - Implement Hyper-V's enlightened MSR bitmap for nested SVM - Remove MMU auditing - Eager splitting of page tables (new aka "TDP" MMU only) when dirty page tracking is enabled - Cleanup the implementation of the guest PGD cache - Preparation for the implementation of Intel IPI virtualization - Fix some segment descriptor checks in the emulator - Allow AMD AVIC support on systems with physical APIC ID above 255 - Better API to disable virtualization quirks - Fixes and optimizations for the zapping of page tables: - Zap roots in two passes, avoiding RCU read-side critical sections that last too long for very large guests backed by 4 KiB SPTEs. - Zap invalid and defunct roots asynchronously via concurrency-managed work queue. - Allowing yielding when zapping TDP MMU roots in response to the root's last reference being put. - Batch more TLB flushes with an RCU trick. Whoever frees the paging structure now holds RCU as a proxy for all vCPUs running in the guest, i.e. to prolongs the grace period on their behalf. It then kicks the the vCPUs out of guest mode before doing rcu_read_unlock(). Generic: - Introduce __vcalloc and use it for very large allocations that need memcg accounting" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (246 commits) KVM: use kvcalloc for array allocations KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2 kvm: x86: Require const tsc for RT KVM: x86: synthesize CPUID leaf 0x80000021h if useful KVM: x86: add support for CPUID leaf 0x80000021 KVM: x86: do not use KVM_X86_OP_OPTIONAL_RET0 for get_mt_mask Revert "KVM: x86/mmu: Zap only TDP MMU leafs in kvm_zap_gfn_range()" kvm: x86/mmu: Flush TLB before zap_gfn_range releases RCU KVM: arm64: fix typos in comments KVM: arm64: Generalise VM features into a set of flags KVM: s390: selftests: Add error memop tests KVM: s390: selftests: Add more copy memop tests KVM: s390: selftests: Add named stages for memop test KVM: s390: selftests: Add macro as abstraction for MEM_OP KVM: s390: selftests: Split memop tests KVM: s390x: fix SCK locking RISC-V: KVM: Implement SBI HSM suspend call RISC-V: KVM: Add common kvm_riscv_vcpu_wfi() function RISC-V: Add SBI HSM suspend related defines RISC-V: KVM: Implement SBI v0.3 SRST extension ...
2022-03-24Merge tag 'flexible-array-transformations-5.18-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux Pull flexible-array transformations from Gustavo Silva: "Treewide patch that replaces zero-length arrays with flexible-array members. This has been baking in linux-next for a whole development cycle" * tag 'flexible-array-transformations-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: treewide: Replace zero-length arrays with flexible-array members