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2026-01-22Merge tag 'net-6.19-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from CAN and wireless. Pretty big, but hard to make up any cohesive story that would explain it, a random collection of fixes. The two reverts of bad patches from this release here feel like stuff that'd normally show up by rc5 or rc6. Perhaps obvious thing to say, given the holiday timing. That said, no active investigations / regressions. Let's see what the next week brings. Current release - fix to a fix: - can: alloc_candev_mqs(): add missing default CAN capabilities Current release - regressions: - usbnet: fix crash due to missing BQL accounting after resume - Revert "net: wwan: mhi_wwan_mbim: Avoid -Wflex-array-member-not ... Previous releases - regressions: - Revert "nfc/nci: Add the inconsistency check between the input ... Previous releases - always broken: - number of driver fixes for incorrect use of seqlocks on stats - rxrpc: fix recvmsg() unconditional requeue, don't corrupt rcv queue when MSG_PEEK was set - ipvlan: make the addrs_lock be per port avoid races in the port hash table - sched: enforce that teql can only be used as root qdisc - virtio: coalesce only linear skb - wifi: ath12k: fix dead lock while flushing management frames - eth: igc: reduce TSN TX packet buffer from 7KB to 5KB per queue" * tag 'net-6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (96 commits) Octeontx2-af: Add proper checks for fwdata dpll: Prevent duplicate registrations net/sched: act_ife: avoid possible NULL deref hinic3: Fix netif_queue_set_napi queue_index input parameter error vsock/test: add stream TX credit bounds test vsock/virtio: cap TX credit to local buffer size vsock/test: fix seqpacket message bounds test vsock/virtio: fix potential underflow in virtio_transport_get_credit() net: fec: account for VLAN header in frame length calculations net: openvswitch: fix data race in ovs_vport_get_upcall_stats octeontx2-af: Fix error handling net: pcs: pcs-mtk-lynxi: report in-band capability for 2500Base-X rxrpc: Fix data-race warning and potential load/store tearing net: dsa: fix off-by-one in maximum bridge ID determination net: bcmasp: Fix network filter wake for asp-3.0 bonding: provide a net pointer to __skb_flow_dissect() selftests: net: amt: wait longer for connection before sending packets be2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list Revert "net: wwan: mhi_wwan_mbim: Avoid -Wflex-array-member-not-at-end warning" netrom: fix double-free in nr_route_frame() ...
2026-01-22perf sched stats: Add details in man pageSwapnil Sapkal
Document 'perf sched stats' purpose, usage examples and guide on how to interpret the report data in the perf-sched man page. Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-22perf sched stats: Add basic 'perf sched stats' testSwapnil Sapkal
Add basic test for 'perf sched stats {record|report|diff}' subcommand. Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> Link: https://lore.kernel.org/r/20260119175833.340369-10-swapnil.sapkal@amd.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-22perf sched stats: Add support for diff subcommandSwapnil Sapkal
`perf sched stats diff` subcommand will take two perf.data files as an input and it will print the diff between the two perf.data files. The default input to this subcommnd is perf.data.old and perf.data. Example usage: # perf sched stats diff sample1.data sample2.data Description ---------------------------------------------------------------------------------------------------- DESC -> Description of the field COUNT -> Value of the field PCT_CHANGE -> Percent change with corresponding base value AVG_JIFFIES -> Avg time in jiffies between two consecutive occurrence of event ---------------------------------------------------------------------------------------------------- Time elapsed (in jiffies) : 1, 1 ---------------------------------------------------------------------------------------------------- CPU: <ALL CPUS SUMMARY> ---------------------------------------------------------------------------------------------------- DESC COUNT1 COUNT2 PCT_CHANGE PCT_CHANGE1 PCT_CHANGE2 ---------------------------------------------------------------------------------------------------- yld_count : 0, 0 | 0.00% | array_exp : 0, 0 | 0.00% | sched_count : 0, 0 | 0.00% | sched_goidle : 0, 0 | 0.00% | ( 0.00%, 0.00% ) ttwu_count : 0, 0 | 0.00% | ttwu_local : 0, 0 | 0.00% | ( 0.00%, 0.00% ) rq_cpu_time : 32565, 33525 | 2.95% | run_delay : 0, 436 | 0.00% | ( 0.00%, 1.30% ) pcount : 0, 0 | 0.00% | ---------------------------------------------------------------------------------------------------- CPU: <ALL CPUS SUMMARY> | DOMAIN: SMT ---------------------------------------------------------------------------------------------------- DESC COUNT1 COUNT2 PCT_CHANGE AVG_JIFFIES1 AVG_JIFFIES2 ----------------------------------------- <Category busy> ------------------------------------------ busy_lb_count : 0, 0 | 0.00% | $ 0.00, 0.00 $ busy_lb_balanced : 0, 0 | 0.00% | $ 0.00, 0.00 $ busy_lb_failed : 0, 0 | 0.00% | $ 0.00, 0.00 $ busy_lb_imbalance_load : 0, 0 | 0.00% | busy_lb_imbalance_util : 0, 0 | 0.00% | busy_lb_imbalance_task : 0, 0 | 0.00% | busy_lb_imbalance_misfit : 0, 0 | 0.00% | busy_lb_gained : 0, 0 | 0.00% | busy_lb_hot_gained : 0, 0 | 0.00% | busy_lb_nobusyq : 0, 0 | 0.00% | $ 0.00, 0.00 $ busy_lb_nobusyg : 0, 0 | 0.00% | $ 0.00, 0.00 $ *busy_lb_success_count : 0, 0 | 0.00% | *busy_lb_avg_pulled : 0.00, 0.00 | 0.00% | ... and so on. Output contains the diff of aggregated data of all the busy, idle and newidle categories for all the sched domains in the system. Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-22perf sched stats: Add support for live modeSwapnil Sapkal
The live mode works similar to simple `perf stat` command, by profiling the target and printing results on the terminal as soon as the target finishes. Example usage: # perf sched stats -- true Description ---------------------------------------------------------------------------------------------------- DESC -> Description of the field COUNT -> Value of the field PCT_CHANGE -> Percent change with corresponding base value AVG_JIFFIES -> Avg time in jiffies between two consecutive occurrence of event ---------------------------------------------------------------------------------------------------- Time elapsed (in jiffies) : 1 ---------------------------------------------------------------------------------------------------- CPU: <ALL CPUS SUMMARY> ---------------------------------------------------------------------------------------------------- DESC COUNT PCT_CHANGE ---------------------------------------------------------------------------------------------------- yld_count : 0 array_exp : 0 sched_count : 0 sched_goidle : 0 ( 0.00% ) ttwu_count : 0 ttwu_local : 0 ( 0.00% ) rq_cpu_time : 27875 run_delay : 0 ( 0.00% ) pcount : 0 ---------------------------------------------------------------------------------------------------- CPU: <ALL CPUS SUMMARY> | DOMAIN: SMT ---------------------------------------------------------------------------------------------------- DESC COUNT AVG_JIFFIES ----------------------------------------- <Category busy> ------------------------------------------ busy_lb_count : 0 $ 0.00 $ busy_lb_balanced : 0 $ 0.00 $ busy_lb_failed : 0 $ 0.00 $ busy_lb_imbalance_load : 0 busy_lb_imbalance_util : 0 busy_lb_imbalance_task : 0 busy_lb_imbalance_misfit : 0 busy_lb_gained : 0 busy_lb_hot_gained : 0 busy_lb_nobusyq : 0 $ 0.00 $ busy_lb_nobusyg : 0 $ 0.00 $ *busy_lb_success_count : 0 *busy_lb_avg_pulled : 0.00 ... and so on. Output will show similar data for all the cpus in the system. Co-developed-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Tested-by: James Clark <james.clark@linaro.org> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> [ Avoid potentially using 'sv' uninitialized by calling free_cpu_domain_info() only when build_cpu_domain_map() is called ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-22perf sched stats: Add support for report subcommandSwapnil Sapkal
`perf sched stats record` captures two sets of samples. For workload profile, first set right before workload starts and second set after workload finishes. For the systemwide profile, first set at the beginning of profile and second set on receiving SIGINT signal. Add `perf sched stats report` subcommand that will read both the set of samples, get the diff and render a final report. Final report prints scheduler stat at cpu granularity as well as sched domain granularity. Example usage: # ./perf sched stats record -- true [ perf sched stats: Wrote samples to perf.data ] # perf sched stats report Description ---------------------------------------------------------------------------------------------------- DESC -> Description of the field COUNT -> Value of the field PCT_CHANGE -> Percent change with corresponding base value AVG_JIFFIES -> Avg time in jiffies between two consecutive occurrence of event ---------------------------------------------------------------------------------------------------- Time elapsed (in jiffies) : 1 ---------------------------------------------------------------------------------------------------- CPU: <ALL CPUS SUMMARY> ---------------------------------------------------------------------------------------------------- DESC COUNT PCT_CHANGE ---------------------------------------------------------------------------------------------------- yld_count : 0 array_exp : 0 sched_count : 0 sched_goidle : 0 ( 0.00% ) ttwu_count : 0 ttwu_local : 0 ( 0.00% ) rq_cpu_time : 33525 run_delay : 436 ( 1.30% ) pcount : 0 ---------------------------------------------------------------------------------------------------- CPU: <ALL CPUS SUMMARY> | DOMAIN: SMT ---------------------------------------------------------------------------------------------------- DESC COUNT AVG_JIFFIES ----------------------------------------- <Category busy> ------------------------------------------ busy_lb_count : 0 $ 0.00 $ busy_lb_balanced : 0 $ 0.00 $ busy_lb_failed : 0 $ 0.00 $ busy_lb_imbalance_load : 0 busy_lb_imbalance_util : 0 busy_lb_imbalance_task : 0 busy_lb_imbalance_misfit : 0 busy_lb_gained : 0 busy_lb_hot_gained : 0 busy_lb_nobusyq : 0 $ 0.00 $ busy_lb_nobusyg : 0 $ 0.00 $ *busy_lb_success_count : 0 *busy_lb_avg_pulled : 0.00 ... and so on. Output shows similar data for all the cpus in the system. Co-developed-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Tested-by: James Clark <james.clark@linaro.org> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-22perf sched stats: Add schedstat v17 supportSwapnil Sapkal
The /proc/schedstat file output is standardized with version number. Add support to record and raw dump v17 version layout. Version 17 of schedstats removed 'lb_imbalance' field as it has no significance anymore and instead added more relevant fields namely 'lb_imbalance_load', 'lb_imbalance_util', 'lb_imbalance_task' and 'lb_imbalance_misfit'. The domain field prints the name of the corresponding sched domain from this version onwards. Co-developed-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-22perf sched stats: Add schedstat v16 supportSwapnil Sapkal
The /proc/schedstat file output is standardized with version number. Add support to record and raw dump v16 version layout. Version 16 of schedstats changed the order of definitions within 'enum cpu_idle_type', which changed the order of [CPU_MAX_IDLE_TYPES] columns in show_schedstat(). In particular the position of CPU_IDLE and __CPU_NOT_IDLE changed places. Co-developed-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Tested-by: James Clark <james.clark@linaro.org> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-22perf sched stats: Add record and rawdump supportSwapnil Sapkal
Define new, perf tool only, sample types and their layouts. Add logic to parse /proc/schedstat, convert it to perf sample format and save samples to perf.data file with `perf sched stats record` command. Also add logic to read perf.data file, interpret schedstat samples and print rawdump of samples with `perf script -D`. Note that, /proc/schedstat file output is standardized with version number. The patch supports v15 but older or newer version can be added easily. Co-developed-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Tested-by: James Clark <james.clark@linaro.org> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> [ PRIu64 needs uint64_t, not 'unsigned long' to work on both 32-bit and 64-bit ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-22vsock/test: add stream TX credit bounds testMelbin K Mathew
Add a regression test for the TX credit bounds fix. The test verifies that a sender with a small local buffer size cannot queue excessive data even when the peer advertises a large receive buffer. The client: - Sets a small buffer size (64 KiB) - Connects to server (which advertises 2 MiB buffer) - Sends in non-blocking mode until EAGAIN - Verifies total queued data is bounded This guards against the original vulnerability where a remote peer could cause unbounded kernel memory allocation by advertising a large buffer and reading slowly. Suggested-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Melbin K Mathew <mlbnkm1@gmail.com> [Stefano: use sock_buf_size to check the bytes sent + small fixes] Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20260121093628.9941-5-sgarzare@redhat.com Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-01-22vsock/test: fix seqpacket message bounds testStefano Garzarella
The test requires the sender (client) to send all messages before waking up the receiver (server). Since virtio-vsock had a bug and did not respect the size of the TX buffer, this test worked, but now that we are going to fix the bug, the test hangs because the sender would fill the TX buffer before waking up the receiver. Set the buffer size in the sender (client) as well, as we already do for the receiver (server). Fixes: 5c338112e48a ("test/vsock: rework message bounds test") Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20260121093628.9941-3-sgarzare@redhat.com Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-01-22kselftest/arm64: Add HWCAP test for FEAT_LS64Yicong Yang
Add tests for FEAT_LS64. Issue related instructions if feature presents, no SIGILL should be received. When such instructions operate on Device memory or non-cacheable memory, we may received a SIGBUS during the test (w/o FEAT_LS64WB). Just ignore it since we only tested whether the instruction itself can be issued as expected on platforms declaring the support of such features. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Oliver Upton <oupton@kernel.org> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com> Signed-off-by: Will Deacon <will@kernel.org>
2026-01-22kselftest/arm64: Use syscall() macro over nolibc my_syscall()Thomas Weißschuh
The my_syscall*() macros are internal implementation details of nolibc. Nolibc also provides the regular syscall(2), which is also a macro and directly expands to the correct my_syscall(). Use syscall() instead. As a side-effect this fixes some return value checks, as my_syscall() returns the raw value as set by the kernel and does not set errno. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2026-01-22selftests/rseq: Add rseq slice histogram scriptPeter Zijlstra
A script that processes trace-cmd data and generates a histogram of rseq slice_ext durations for the recorded workload. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://patch.msgid.link/20260121143208.340549136@infradead.org
2026-01-22selftests/rseq: Implement time slice extension testThomas Gleixner
Provide an initial test case to evaluate the functionality. This needs to be extended to cover the ABI violations and expose the race condition between observing granted and arriving in rseq_slice_yield(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://patch.msgid.link/20251215155709.320325431@linutronix.de
2026-01-21Merge tag 'perf-tools-fixes-for-v6.19-2026-01-21' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools Pull perf-tools fix from Namhyung Kim: "A minor fix for error handling in the event parser" * tag 'perf-tools-fixes-for-v6.19-2026-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: perf parse-events: Fix evsel allocation failure
2026-01-21selftests: net: amt: wait longer for connection before sending packetsTaehee Yoo
Both send_mcast4() and send_mcast6() use sleep 2 to wait for the tunnel connection between the gateway and the relay, and for the listener socket to be created in the LISTENER namespace. However, tests sometimes fail because packets are sent before the connection is fully established. Increase the waiting time to make the tests more reliable, and use wait_local_port_listen() to explicitly wait for the listener socket. Fixes: c08e8baea78e ("selftests: add amt interface selftest script") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Link: https://patch.msgid.link/20260120133930.863845-1-ap420073@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21selftests: netconsole: validate target resumeAndre Carvalho
Introduce a new netconsole selftest to validate that netconsole is able to resume a deactivated target when the low level interface comes back. The test setups the network using netdevsim, creates a netconsole target and then remove/add netdevsim in order to bring the same interfaces back. Afterwards, the test validates that the target works as expected. Targets are created via cmdline parameters to the module to ensure that we are able to resume targets that were bound by mac and interface name. Reviewed-by: Breno Leitao <leitao@debian.org> Signed-off-by: Andre Carvalho <asantostc@gmail.com> Tested-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20260118-netcons-retrigger-v11-7-4de36aebcf48@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-21perf header: Support CPU DOMAIN relation infoSwapnil Sapkal
The '/proc/schedstat' file gives info about load balancing statistics within a given domain. It also contains the cpu_mask giving information about the sibling cpus and domain names after schedstat version 17. Storing this information in perf header will help tools like `perf sched stats` for better analysis. Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-21tools/lib: Add list_is_first()Swapnil Sapkal
Add list_is_first() to check whether @list is the first entry in list @head Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Tested-by: Chen Yu <yu.c.chen@intel.com> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anubhav Shelat <ashelat@redhat.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: David Vernet <void@manifault.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Gautham Shenoy <gautham.shenoy@amd.com> Cc: Graham Woodward <graham.woodward@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Cc: Shrikanth Hegde <sshegde@linux.ibm.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: Zhongqiu Han <quic_zhonhan@quicinc.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-21selftests/bpf: Fix resource leak in serial_test_wq on attach failureKery Qi
When wq__attach() fails, serial_test_wq() returns early without calling wq__destroy(), leaking the skeleton resources allocated by wq__open_and_load(). This causes ASAN leak reports in selftests runs. Fix this by jumping to a common clean_up label that calls wq__destroy() on all exit paths after successful open_and_load. Note that the early return after wq__open_and_load() failure is correct and doesn't need fixing, since that function returns NULL on failure (after internally cleaning up any partial allocations). Fixes: 8290dba51910 ("selftests/bpf: wq: add bpf_wq_start() checks") Signed-off-by: Kery Qi <qikeyu2017@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/bpf/20260121094114.1801-3-qikeyu2017@gmail.com
2026-01-21objtool: Fix libopcodes linking with static librariesSasha Levin
Commit 436326bc525d ("objtool: fix build failure due to missing libopcodes check") tests for libopcodes using an empty main(), which passes even when static libraries lack their dependencies. This causes undefined reference errors (xmalloc, bfd_get_bits, etc.) when linking against static libopcodes without its required libbfd and libiberty. Fix by testing with an actual libopcodes symbol and trying increasingly complete library combinations until one succeeds. Fixes: 436326bc525d ("objtool: fix build failure due to missing libopcodes check") Reported-by: Rafael J. Wysocki <rafael@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Rafael J. Wysocki (Intel) <rafael@kernel.org> Link: https://patch.msgid.link/20260121162532.1596238-1-sashal@kernel.org
2026-01-21selftests/pidfd: fix typo in commentZiyu Chen
Fix the typo "untill" → "until" in a comment in pidfd_info_test.c. This typo is already listed in scripts/spelling.txt by commit 66b47b4a9dad ("checkpatch: look for common misspellings"). Link: https://lore.kernel.org/r/20260121094147.4187337-1-chenziyu@uniontech.com Suggested-by: Cryolitia PukNgae <cryolitia@uniontech.com> Signed-off-by: Ziyu Chen <chenziyu@uniontech.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2026-01-21selftests/bpf: Test kfunc bpf_strncasecmpYuzuki Ishiyama
Add testsuites for kfunc bpf_strncasecmp. Signed-off-by: Yuzuki Ishiyama <ishiyama@hpc.is.uec.ac.jp> Acked-by: Viktor Malik <vmalik@redhat.com> Link: https://lore.kernel.org/r/20260121033328.1850010-3-ishiyama@hpc.is.uec.ac.jp Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-21selftests/bpf: test bpf_get_func_arg() for tp_btfMenglong Dong
Test bpf_get_func_arg() and bpf_get_func_arg_cnt() for tp_btf. The code is most copied from test1 and test2. Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20260121044348.113201-3-dongml2@chinatelecom.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-21selftests/io_uring: support NO_SQARRAY in miniliburingPavel Begunkov
Add support for IORING_SETUP_NO_SQARRAY in miniliburing. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-21selftests/io_uring: add io_uring_queue_init_paramsPavel Begunkov
Add a ring init variant taking struct io_uring_params, which mimicks liburing API. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-21selftests/ublk: fix garbage output in foreground modeMing Lei
Initialize _evtfd to -1 in struct dev_ctx to prevent garbage output when running kublk in foreground mode. Without this, _evtfd is zero-initialized to 0 (stdin), and ublk_send_dev_event() writes binary data to stdin which appears as garbage on the terminal. Also fix debug message format string. Fixes: 6aecda00b7d1 ("selftests: ublk: add kernel selftests for ublk") Signed-off-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Caleb Sander Mateos <csander@purestorage.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-21selftests/ublk: fix error handling for starting deviceMing Lei
Fix error handling in ublk_start_daemon() when start_dev fails: 1. Call ublk_ctrl_stop_dev() to cancel inflight uring_cmd before cleanup. Without this, the device deletion may hang waiting for I/O completion that will never happen. 2. Add fail_start label so that pthread_join() is called on the error path. This ensures proper thread cleanup when startup fails. Fixes: 6aecda00b7d1 ("selftests: ublk: add kernel selftests for ublk") Signed-off-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Caleb Sander Mateos <csander@purestorage.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-21selftests/ublk: fix IO thread idle checkMing Lei
Include cmd_inflight in ublk_thread_is_done() check. Without this, the thread may exit before all FETCH commands are completed, which may cause device deletion to hang. Fixes: 6aecda00b7d1 ("selftests: ublk: add kernel selftests for ublk") Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-01-21perf list: Don't write to const memoryArnaldo Carvalho de Melo
Something now detected on fedora 44, where strchr() returns const if it is passed a const pointer: util/print-events.c: In function 'print_sdt_events': util/print-events.c:89:29: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 89 | char *bid = strchr(sdt_name->s, '@'); | ^~~~~~ Fix it by using strchrnul() + strncmp() instead of temporarily scrubbing it with '\0'. Reviewed-by: Ian Rogers <irogers@google.com> Suggested-by: David Laight <david.laight.linux@gmail.com> Link: https://lore.kernel.org/r/20260121112536.27fd5d11@pumpkin Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-21perf list: Signal changing const memory is okArnaldo Carvalho de Melo
In this case its a temp list that is created just for listing events and will be deleted at the end, so just cast it to get rid of the compiler warning. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-01-20selftests/bpf: test the jited inline of bpf_get_current_taskMenglong Dong
Add the testcase for the jited inline of bpf_get_current_task(). Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20260120070555.233486-3-dongml2@chinatelecom.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-01-20watchdog: softlockup: panic when lockup duration exceeds N thresholdsLi RongQing
The softlockup_panic sysctl is currently a binary option: panic immediately or never panic on soft lockups. Panicking on any soft lockup, regardless of duration, can be overly aggressive for brief stalls that may be caused by legitimate operations. Conversely, never panicking may allow severe system hangs to persist undetected. Extend softlockup_panic to accept an integer threshold, allowing the kernel to panic only when the normalized lockup duration exceeds N watchdog threshold periods. This provides finer-grained control to distinguish between transient delays and persistent system failures. The accepted values are: - 0: Don't panic (unchanged) - 1: Panic when duration >= 1 * threshold (20s default, original behavior) - N > 1: Panic when duration >= N * threshold (e.g., 2 = 40s, 3 = 60s.) The original behavior is preserved for values 0 and 1, maintaining full backward compatibility while allowing systems to tolerate brief lockups while still catching severe, persistent hangs. [lirongqing@baidu.com: v2] Link: https://lkml.kernel.org/r/20251218074300.4080-1-lirongqing@baidu.com Link: https://lkml.kernel.org/r/20251216074521.2796-1-lirongqing@baidu.com Signed-off-by: Li RongQing <lirongqing@baidu.com> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Hao Luo <haoluo@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Fastabend <john.fastabend@gmail.com> Cc: KP Singh <kpsingh@kernel.org> Cc: Lance Yang <lance.yang@linux.dev> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Song Liu <song@kernel.org> Cc: Stanislav Fomichev <sdf@fomichev.me> Cc: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20selftests/mm: fix comment for check_test_requirementsChunyu Hu
The test supports arm64 as well so the comment is incorrect. And there's a check for arm64 in va_high_addr_switch.c. Link: https://lkml.kernel.org/r/20251221040025.3159990-5-chuhu@redhat.com Fixes: 983e760bcdb6 ("selftest/mm: va_high_addr_switch: add ppc64 support check") Fixes: f556acc2facd ("selftests/mm: skip test for non-LPA2 and non-LVA systems") Signed-off-by: Chunyu Hu <chuhu@redhat.com> Reviewed-by: Luiz Capitulino <luizcap@redhat.com> Cc: "David Hildenbrand (Red Hat)" <david@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20selftests/mm: va_high_addr_switch return fail when either test failedChunyu Hu
When the first test failed, and the hugetlb test passed, the result would be pass, but we expect a fail. Fix this issue by returning fail if either is not KSFT_PASS. Link: https://lkml.kernel.org/r/20251221040025.3159990-4-chuhu@redhat.com Signed-off-by: Chunyu Hu <chuhu@redhat.com> Reviewed-by: Luiz Capitulino <luizcap@redhat.com> Cc: "David Hildenbrand (Red Hat)" <david@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20selftests/mm: remove arm64 nr_hugepages setup for va_high_addr_switch testChunyu Hu
arm64 and x86_64 has the same nr_hugepages requriement for running the va_high_addr_switch test. Since commit d9d957bd7b61 ("selftests/mm: alloc hugepages in va_high_addr_switch test"), the setup can be done in va_high_addr_switch.sh. So remove the duplicated setup. Link: https://lkml.kernel.org/r/20251221040025.3159990-3-chuhu@redhat.com Signed-off-by: Chunyu Hu <chuhu@redhat.com> Reviewed-by: Luiz Capitulino <luizcap@redhat.com> Cc: Luiz Capitulino <luizcap@redhat.com> Cc: "David Hildenbrand (Red Hat)" <david@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20selftests/mm: allocate 6 hugepages in va_high_addr_switch.shChunyu Hu
The va_high_addr_switch test requires 6 hugepages, not 5. If running the test directly by: ./va_high_addr_switch.sh, the test will hit a mmap 'FAIL' caused by not enough hugepages: mmap(addr_switch_hint - hugepagesize, 2*hugepagesize, MAP_HUGETLB): 0x7f330f800000 - OK mmap(addr_switch_hint , 2*hugepagesize, MAP_FIXED | MAP_HUGETLB): 0xffffffffffffffff - FAILED The failure can't be hit if run the tests by running 'run_vmtests.sh -t hugevm' because the nr_hugepages is set to 128 at the beginning of run_vmtests.sh and va_high_addr_switch.sh skip the setup of nr_hugepages because already enough. Link: https://lkml.kernel.org/r/20251221040025.3159990-2-chuhu@redhat.com Fixes: d9d957bd7b61 ("selftests/mm: alloc hugepages in va_high_addr_switch test") Signed-off-by: Chunyu Hu <chuhu@redhat.com> Reviewed-by: Luiz Capitulino <luizcap@redhat.com> Cc: "David Hildenbrand (Red Hat)" <david@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20selftests/mm: fix va_high_addr_switch.sh return valueChunyu Hu
Patch series "Fix va_high_addr_switch.sh test failure - again", v2. The series address several issues exist for the va_high_addr_switch test: 1) the test return value is ignored in va_high_addr_switch.sh. 2) the va_high_addr_switch test requires 6 hugepages not 5. 3) the reurn value of the first test in va_high_addr_switch.c can be overridden by the second test. 4) the nr_hugepages setup in run_vmtests.sh for arm64 can be done in va_high_addr_switch.sh too. 5) update a comment for check_test_requirements. This patch: (of 5) The return value should be return value of va_high_addr_switch, otherwise a test failure would be silently ignored. Link: https://lkml.kernel.org/r/20251221040025.3159990-1-chuhu@redhat.com Fixes: d9d957bd7b61 ("selftests/mm: alloc hugepages in va_high_addr_switch test") Signed-off-by: Chunyu Hu <chuhu@redhat.com> Reviewed-by: Luiz Capitulino <luizcap@redhat.com> Cc: Luiz Capitulino <luizcap@redhat.com> Cc: "David Hildenbrand (Red Hat)" <david@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20selftests/mm/charge_reserved_hugetlb.sh: add waits with timeout helperLi Wang
The hugetlb cgroup usage wait loops in charge_reserved_hugetlb.sh were unbounded and could hang forever if the expected cgroup file value never appears (e.g. due to write_to_hugetlbfs in Error mapping). === Error log === # uname -r 6.12.0-xxx.el10.aarch64+64k # ls /sys/kernel/mm/hugepages/hugepages-* hugepages-16777216kB/ hugepages-2048kB/ hugepages-524288kB/ #./charge_reserved_hugetlb.sh -cgroup-v2 # ----------------------------------------- ... # nr hugepages = 10 # writing cgroup limit: 5368709120 # writing reseravation limit: 5368709120 ... # write_to_hugetlbfs: Error mapping the file: Cannot allocate memory # Waiting for hugetlb memory reservation to reach size 2684354560. # 0 # Waiting for hugetlb memory reservation to reach size 2684354560. # 0 # Waiting for hugetlb memory reservation to reach size 2684354560. # 0 # Waiting for hugetlb memory reservation to reach size 2684354560. # 0 # Waiting for hugetlb memory reservation to reach size 2684354560. # 0 # Waiting for hugetlb memory reservation to reach size 2684354560. # 0 ... Introduce a small helper, wait_for_file_value(), and use it for: - waiting for reservation usage to drop to 0, - waiting for reservation usage to reach a given size, - waiting for fault usage to reach a given size. This makes the waits consistent and adds a hard timeout (60 tries with 1s sleep) so the test fails instead of stalling indefinitely. Link: https://lkml.kernel.org/r/20251221122639.3168038-4-liwang@redhat.com Signed-off-by: Li Wang <liwang@redhat.com> Acked-by: David Hildenbrand (Red Hat) <david@kernel.org> Cc: Mark Brown <broonie@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Waiman Long <longman@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20selftests/mm/charge_reserved_hugetlb: drop mount size for hugetlbfsLi Wang
charge_reserved_hugetlb.sh mounts a hugetlbfs instance at /mnt/huge with a fixed size of 256M. On systems with large base hugepages (e.g. 512MB), this is smaller than a single hugepage, so the hugetlbfs mount ends up with zero capacity (often visible as size=0 in mount output). As a result, write_to_hugetlbfs fails with ENOMEM and the test can hang waiting for progress. === Error log === # uname -r 6.12.0-xxx.el10.aarch64+64k #./charge_reserved_hugetlb.sh -cgroup-v2 # ----------------------------------------- ... # nr hugepages = 10 # writing cgroup limit: 5368709120 # writing reseravation limit: 5368709120 ... # write_to_hugetlbfs: Error mapping the file: Cannot allocate memory # Waiting for hugetlb memory reservation to reach size 2684354560. # 0 # Waiting for hugetlb memory reservation to reach size 2684354560. # 0 ... # mount |grep /mnt/huge none on /mnt/huge type hugetlbfs (rw,relatime,seclabel,pagesize=512M,size=0) # grep -i huge /proc/meminfo ... HugePages_Total: 10 HugePages_Free: 10 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 524288 kB Hugetlb: 5242880 kB Drop the mount args with 'size=256M', so the filesystem capacity is sufficient regardless of HugeTLB page size. Link: https://lkml.kernel.org/r/20251221122639.3168038-3-liwang@redhat.com Fixes: 29750f71a9b4 ("hugetlb_cgroup: add hugetlb_cgroup reservation tests") Signed-off-by: Li Wang <liwang@redhat.com> Acked-by: David Hildenbrand (Red Hat) <david@kernel.org> Acked-by: Waiman Long <longman@redhat.com> Cc: Mark Brown <broonie@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20selftests/mm/write_to_hugetlbfs: parse -s as size_tLi Wang
Patch series "selftests/mm: hugetlb cgroup charging: robustness fixes", v3. This series fixes a few issues in the hugetlb cgroup charging selftests (write_to_hugetlbfs.c + charge_reserved_hugetlb.sh) that show up on systems with large hugepages (e.g. 512MB) and when failures cause the test to wait indefinitely. On an aarch64 64k page kernel with 512MB hugepages, the test consistently fails in write_to_hugetlbfs with ENOMEM and then hangs waiting for the expected usage values. The root cause is that charge_reserved_hugetlb.sh mounts hugetlbfs with a fixed size=256M, which is smaller than a single hugepage, resulting in a mount with size=0 capacity. In addition, write_to_hugetlbfs previously parsed -s via atoi() into an int, which can overflow and print negative sizes. Reproducer / environment: - Kernel: 6.12.0-xxx.el10.aarch64+64k - Hugepagesize: 524288 kB (512MB) - ./charge_reserved_hugetlb.sh -cgroup-v2 - Observed mount: pagesize=512M,size=0 before this series After applying the series, the test completes successfully on the above setup. This patch (of 3): write_to_hugetlbfs currently parses the -s size argument with atoi() into an int. This silently accepts malformed input, cannot report overflow, and can truncate large sizes. === Error log === # uname -r 6.12.0-xxx.el10.aarch64+64k # ls /sys/kernel/mm/hugepages/hugepages-* hugepages-16777216kB/ hugepages-2048kB/ hugepages-524288kB/ #./charge_reserved_hugetlb.sh -cgroup-v2 # ----------------------------------------- ... # nr hugepages = 10 # writing cgroup limit: 5368709120 # writing reseravation limit: 5368709120 ... # Writing to this path: /mnt/huge/test # Writing this size: -1610612736 <-------- Switch the size variable to size_t and parse -s with sscanf("%zu", ...). Also print the size using %zu. This avoids incorrect behavior with large -s values and makes the utility more robust. Link: https://lkml.kernel.org/r/20251221122639.3168038-1-liwang@redhat.com Link: https://lkml.kernel.org/r/20251221122639.3168038-2-liwang@redhat.com Signed-off-by: Li Wang <liwang@redhat.com> Acked-by: David Hildenbrand (Red Hat) <david@kernel.org> Acked-by: Waiman Long <longman@redhat.com> Cc: David Hildenbrand <david@kernel.org> Cc: Mark Brown <broonie@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20lib/test_vmalloc.c: minor fixes to test_vmalloc.cAudra Mitchell
If PAGE_SIZE is larger than 4k and if you have a system with a large number of CPUs, this test can require a very large amount of memory leading to oom-killer firing. Given the type of allocation, the kernel won't have anything to kill, causing the system to stall. Add a parameter to the test_vmalloc driver to represent the number of times a percpu object will be allocated. Calculate this in test_vmalloc.sh to be 90% of available memory or the current default of 35000, whichever is smaller. Link: https://lkml.kernel.org/r/20251201181848.1216197-1-audra@redhat.com Signed-off-by: Audra Mitchell <audra@redhat.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Rafael Aquini <raquini@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: "Uladzislau Rezki (Sony)" <urezki@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20tools/mm/slabinfo: fix --partial long option mappingKaushlendra Kumar
The long option "--partial" was incorrectly mapped to lowercase 'p' in the opts[] array, but the getopt string and switch case handle uppercase 'P'. This mismatch caused --partial to be rejected. Fix the long_options mapping to use 'P' so --partial works correctly alongside the existing -P short option. Link: https://lkml.kernel.org/r/20251208105240.2719773-1-kaushlendra.kumar@intel.com Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com> Reviewed-by: SeongJae Park <sj@kernel.org> Tested-by: SeongJae Park <sj@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20tools/mm/thp_swap_allocator_test: fix small folio alignmentKaushlendra Kumar
Use ALIGNMENT_SMALLFOLIO instead of ALIGNMENT_MTHP when allocating small folios to ensure correct memory alignment for the test case. Before: test allocates small folios with 64KB alignment (ALIGNMENT_MTHP) when only 4KB alignment (ALIGNMENT_SMALLFOLIO) is needed. This wastes address space and may cause allocation failures on systems with fragmented memory. Worst-case impact: this only affects thp_swap_allocator_test tool behavior. Link: https://lkml.kernel.org/r/20251209031745.2723120-1-kaushlendra.kumar@intel.com Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20selftests: drv-net: fix missing include in ncdevmemJakub Kicinski
Commit ca9d74eb5f6a ("uapi: add INT_MAX and INT_MIN constants") recently removed some includes of limits.h in uAPI headers. ncdevmem.c was depending on them: ncdevmem.c: In function ‘ethtool_add_flow’: ncdevmem.c:369:60: error: ‘INT_MAX’ undeclared (first use in this function) 369 | if (endptr == id_start || flow_id < 0 || flow_id > INT_MAX) | ^~~~~~~ ncdevmem.c:77:1: note: ‘INT_MAX’ is defined in header ‘<limits.h>’; did you forget to ‘#include <limits.h>’? Reviewed-by: Mina Almasry <almasrymina@google.com> Link: https://patch.msgid.link/20260120180319.1673271-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-20selftests: drv-net: extend HW timestamp test with ioctlVadim Fedorenko
Extend HW timestamp tests to check that ioctl interface is not broken and configuration setups and requests are equal to netlink interface. Some linter warnings are disabled because of ctypes classes. Reviewed-by: Kory Maincent <kory.maincent@bootlin.com> Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Link: https://patch.msgid.link/20260116062121.1230184-2-vadim.fedorenko@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-20Merge tag 'net-queue-rx-buf-len-v9' of https://github.com/isilence/linuxJakub Kicinski
Pavel Begunkov says: ==================== Add support for providers with large rx buffer Many modern NICs support configurable receive buffer lengths, and zcrx and memory providers can use buffers larger than 4K to improve performance. When paired with hw-gro larger rx buffer sizes can drastically reduce the number of buffers traversing the stack and save a lot of processing time. It also allows to give to users larger contiguous chunks of data. Single stream benchmarks showed up to ~30% CPU util improvement. E.g. comparison for 4K vs 32K buffers using a 200Gbit NIC: packets=23987040 (MB=2745098), rps=199559 (MB/s=22837) CPU %usr %nice %sys %iowait %irq %soft %idle 0 1.53 0.00 27.78 2.72 1.31 66.45 0.22 packets=24078368 (MB=2755550), rps=200319 (MB/s=22924) CPU %usr %nice %sys %iowait %irq %soft %idle 0 0.69 0.00 8.26 31.65 1.83 57.00 0.57 This series adds net infrastructure for memory providers configuring the size and implements it for bnxt. It's an opt-in feature for drivers, they should advertise support for the parameter in the qops and must check if the hardware supports the given size. It's limited to memory providers as it drastically simplifies implementation. It doesn't affect the fast path zcrx uAPI, and the user exposed parameter is defined in zcrx terms, which allows it to be flexible and adjusted in the future. A liburing example can be found at [2] full branch: [1] https://github.com/isilence/linux.git zcrx/large-buffers-v8 Liburing example: [2] https://github.com/isilence/liburing.git zcrx/rx-buf-len * tag 'net-queue-rx-buf-len-v9' of https://github.com/isilence/linux: io_uring/zcrx: document area chunking parameter selftests: iou-zcrx: test large chunk sizes eth: bnxt: support qcfg provided rx page size eth: bnxt: adjust the fill level of agg queues with larger buffers eth: bnxt: store rx buffer size per queue net: pass queue rx page size from memory provider net: add bare bone queue configs net: reduce indent of struct netdev_queue_mgmt_ops members net: memzero mp params when closing a queue ==================== Link: https://patch.msgid.link/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-20Revert "Merge branch 'netkit-support-for-io_uring-zero-copy-and-af_xdp'"Jakub Kicinski
This reverts commit 77b9c4a438fc66e2ab004c411056b3fb71a54f2c, reversing changes made to 4515ec4ad58a37e70a9e1256c0b993958c9b7497: 931420a2fc36 ("selftests/net: Add netkit container tests") ab771c938d9a ("selftests/net: Make NetDrvContEnv support queue leasing") 6be87fbb2776 ("selftests/net: Add env for container based tests") 61d99ce3dfc2 ("selftests/net: Add bpf skb forwarding program") 920da3634194 ("netkit: Add xsk support for af_xdp applications") eef51113f8af ("netkit: Add netkit notifier to check for unregistering devices") b5ef109d22d4 ("netkit: Implement rtnl_link_ops->alloc and ndo_queue_create") b5c3fa4a0b16 ("netkit: Add single device mode for netkit") 0073d2fd679d ("xsk: Proxy pool management for leased queues") 1ecea95dd3b5 ("xsk: Extend xsk_rcv_check validation") 804bf334d08a ("net: Proxy netdev_queue_get_dma_dev for leased queues") 0caa9a8ddec3 ("net: Proxy net_mp_{open,close}_rxq for leased queues") ff8889ff9107 ("net, ethtool: Disallow leased real rxqs to be resized") 9e2103f36110 ("net: Add lease info to queue-get response") 31127deddef4 ("net: Implement netdev_nl_queue_create_doit") a5546e18f77c ("net: Add queue-create operation") The series will conflict with io_uring work, and the code needs more polish. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-20selftests/bpf: update verifier test for default trusted pointer semanticsMatt Bobrowski
Replace the verifier test for default trusted pointer semantics, which previously relied on BPF kfunc bpf_get_root_mem_cgroup(), with a new test utilizing dedicated BPF kfuncs defined within the bpf_testmod. bpf_get_root_mem_cgroup() was modified such that it again relies on KF_ACQUIRE semantics, therefore no longer making it a suitable candidate to test BPF verifier default trusted pointer semantics against. Link: https://lore.kernel.org/bpf/20260113083949.2502978-2-mattbobrowski@google.com Signed-off-by: Matt Bobrowski <mattbobrowski@google.com> Link: https://lore.kernel.org/r/20260120091630.3420452-1-mattbobrowski@google.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>