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[PATCH] selftests/tracing: Add basic test for trace_marker_raw file

by Steven Rostedt

From: Steven Rostedt <rostedt(a)goodmis.org> Commit 64cf7d058a00 ("tracing: Have trace_marker use per-cpu data to read user space") made an update that fixed both trace_marker and trace_marker_raw. But the small difference made to trace_marker_raw had a blatant bug in it that any basic testing would have uncovered. Unfortunately, the self tests have tests for trace_marker but nothing for trace_marker_raw which allowed the bug to get upstream. Add basic selftests to test trace_marker_raw so that this doesn't happen again. Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> --- .../ftrace/test.d/00basic/trace_marker_raw.tc | 107 ++++++++++++++++++ 1 file changed, 107 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/00basic/trace_marker_raw.tc diff --git a/tools/testing/selftests/ftrace/test.d/00basic/trace_marker_raw.tc b/tools/testing/selftests/ftrace/test.d/00basic/trace_marker_raw.tc new file mode 100644 index 000000000000..7daf7292209e --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/00basic/trace_marker_raw.tc @@ -0,0 +1,107 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Basic tests on writing to trace_marker_raw +# requires: trace_marker_raw +# flags: instance + +is_little_endian() { + if lscpu | grep -q 'Little Endian'; then + echo 1; + else + echo 0; + fi +} + +little=`is_little_endian` + +make_str() { + id=$1 + cnt=$2 + + if [ $little -eq 1 ]; then + val=`printf "\\%03o\\%03o\\%03o\\%03o" \ + $(($id & 0xff)) \ + $((($id >> 8) & 0xff)) \ + $((($id >> 16) & 0xff)) \ + $((($id >> 24) & 0xff))` + else + val=`printf "\\%03o\\%03o\\%03o\\%03o" \ + $((($id >> 24) & 0xff)) \ + $((($id >> 16) & 0xff)) \ + $((($id >> 8) & 0xff)) \ + $(($id & 0xff))` + fi + + data=`printf -- 'X%.0s' $(seq $cnt)` + + printf "${val}${data}" +} + +write_buffer() { + id=$1 + size=$2 + + # write the string into the raw marker + make_str $id $size > trace_marker_raw +} + + +test_multiple_writes() { + + # Write a bunch of data where the id is the count of + # data to write + for i in `seq 1 10` `seq 101 110` `seq 1001 1010`; do + write_buffer $i $i + done + + # add a little buffer + echo stop > trace_marker + + # Check to make sure the number of entries is the id (rounded up by 4) + awk '/.*: # [0-9a-f]* / { + print; + cnt = -1; + for (i = 0; i < NF; i++) { + # The counter is after the "#" marker + if ( $i == "#" ) { + i++; + cnt = strtonum("0x" $i); + num = NF - (i + 1); + # The number of items is always rounded up by 4 + cnt2 = int((cnt + 3) / 4) * 4; + if (cnt2 != num) { + exit 1; + } + break; + } + } + } + // { if (NR > 30) { exit 0; } } ' trace_pipe; +} + + +get_buffer_data_size() { + sed -ne 's/^.*data.*size:$[0-9][0-9]*$.*/\1/p' events/header_page +} + +test_buffer() { + + # The id must be four bytes, test that 3 bytes fails a write + if echo -n abc > ./trace_marker_raw ; then + echo "Too small of write expected to fail but did not" + exit_fail + fi + + size=`get_buffer_data_size` + echo size = $size + + # Now add a little more than what it can handle + + if write_buffer 0xdeadbeef $size ; then + echo "Too big of write expected to fail but did not" + exit_fail + fi +} + +test_buffer +test_multiple_writes -- 2.51.0

3 weeks, 2 days

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[PATCH] selftests/dma: fix invalid array access in printf

by Zhang Chujun

The printf statement attempts to print the DMA direction string using the syntax 'dir[directions]', which is an invalid array access. The variable 'dir' is an integer, and 'directions' is a char pointer array. This incorrect syntax should be 'directions[dir]', using 'dir' as the index into the 'directions' array. Fix this by correcting the array access from 'dir[directions]' to 'directions[dir]'. Signed-off-by: Zhang Chujun <zhangchujun(a)cmss.chinamobile.com> diff --git a/tools/testing/selftests/dma/dma_map_benchmark.c b/tools/testing/selftests/dma/dma_map_benchmark.c index b12f1f9babf8..b925756373ce 100644 --- a/tools/testing/selftests/dma/dma_map_benchmark.c +++ b/tools/testing/selftests/dma/dma_map_benchmark.c @@ -118,7 +118,7 @@ int main(int argc, char **argv) } printf("dma mapping benchmark: threads:%d seconds:%d node:%d dir:%s granule: %d\n", - threads, seconds, node, dir[directions], granule); + threads, seconds, node, directions[dir], granule); printf("average map latency(us):%.1f standard deviation:%.1f\n", map.avg_map_100ns/10.0, map.map_stddev/10.0); printf("average unmap latency(us):%.1f standard deviation:%.1f\n", -- 2.50.1.windows.1

3 weeks, 2 days

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[PATCH v6 0/3] drivers/base: Introduce revocable

by Tzung-Bi Shih

The series is separated from [1] to show the independency and compare potential use cases easier. This is the revocable core part. Use cases are in other series. The 1st patch introduces the revocable which is an implementation of ideas from the talk [2]. The 2nd and 3rd patches add test cases for revocable in Kunit and selftest. [1] https://lore.kernel.org/chrome-platform/20251016054204.1523139-1-tzungbi@ke… [2] https://lpc.events/event/17/contributions/1627/ v6: - Rebase onto next-20251106. - Separate revocable core and use cases. v5: https://lore.kernel.org/chrome-platform/20251016054204.1523139-1-tzungbi@ke… - Rebase onto next-20251015. - Add more context about the PoC. - Support multiple revocable providers in the PoC. v4: https://lore.kernel.org/chrome-platform/20250923075302.591026-1-tzungbi@ker… - Rebase onto next-20250922. - Remove the 5th patch from v3. - Add fops replacement PoC in 5th - 7th patches. v3: https://lore.kernel.org/chrome-platform/20250912081718.3827390-1-tzungbi@ke… - Rebase onto https://lore.kernel.org/chrome-platform/20250828083601.856083-1-tzungbi@ker… and next-20250912. - The 4th patch changed accordingly. v2: https://lore.kernel.org/chrome-platform/20250820081645.847919-1-tzungbi@ker… - Rename "ref_proxy" -> "revocable". - Add test cases in Kunit and selftest. v1: https://lore.kernel.org/chrome-platform/20250814091020.1302888-1-tzungbi@ke… Tzung-Bi Shih (3): revocable: Revocable resource management revocable: Add Kunit test cases selftests: revocable: Add kselftest cases .../driver-api/driver-model/index.rst | 1 + .../driver-api/driver-model/revocable.rst | 112 +++++++++ MAINTAINERS | 9 + drivers/base/Kconfig | 8 + drivers/base/Makefile | 5 +- drivers/base/revocable.c | 234 ++++++++++++++++++ drivers/base/revocable_test.c | 139 +++++++++++ include/linux/revocable.h | 69 ++++++ tools/testing/selftests/Makefile | 1 + .../selftests/drivers/base/revocable/Makefile | 7 + .../drivers/base/revocable/revocable_test.c | 136 ++++++++++ .../drivers/base/revocable/test-revocable.sh | 39 +++ .../base/revocable/test_modules/Makefile | 10 + .../revocable/test_modules/revocable_test.c | 195 +++++++++++++++ 14 files changed, 964 insertions(+), 1 deletion(-) create mode 100644 Documentation/driver-api/driver-model/revocable.rst create mode 100644 drivers/base/revocable.c create mode 100644 drivers/base/revocable_test.c create mode 100644 include/linux/revocable.h create mode 100644 tools/testing/selftests/drivers/base/revocable/Makefile create mode 100644 tools/testing/selftests/drivers/base/revocable/revocable_test.c create mode 100755 tools/testing/selftests/drivers/base/revocable/test-revocable.sh create mode 100644 tools/testing/selftests/drivers/base/revocable/test_modules/Makefile create mode 100644 tools/testing/selftests/drivers/base/revocable/test_modules/revocable_test.c -- 2.48.1

3 weeks, 2 days

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[PATCH net] bonding: fix NULL pointer dereference in actor_port_prio setting

by Hangbin Liu

Liang reported an issue where setting a slave’s actor_port_prio to predefined values such as 0, 255, or 65535 would cause a system crash. The problem occurs because in bond_opt_parse(), when the provided value matches a predefined table entry, the function returns that table entry, which does not contain slave information. Later, in bond_option_actor_port_prio_set(), calling bond_slave_get_rtnl() leads to a NULL pointer dereference. Since actor_port_prio is defined as a u16 and initialized to the default value of 255 in ad_initialize_port(), there is no need for the bond_actor_port_prio_tbl. Using the BOND_OPTFLAG_RAWVAL flag is sufficient. Fixes: 6b6dc81ee7e8 ("bonding: add support for per-port LACP actor priority") Reported-by: Liang Li <liali(a)redhat.com> Signed-off-by: Hangbin Liu <liuhangbin(a)gmail.com> --- BTW, the logic in bond_opt_parse() may also need an update after we have f2b3b28ce523 ("bonding: add slave_dev field for bond_opt_value"), as we may need range checking on slave options in future. But this should be another patch and not urgent as this one. --- drivers/net/bonding/bond_options.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c index 495a87f2ea7c..384499c869b8 100644 --- a/drivers/net/bonding/bond_options.c +++ b/drivers/net/bonding/bond_options.c @@ -225,13 +225,6 @@ static const struct bond_opt_value bond_ad_actor_sys_prio_tbl[] = { { NULL, -1, 0}, }; -static const struct bond_opt_value bond_actor_port_prio_tbl[] = { - { "minval", 0, BOND_VALFLAG_MIN}, - { "maxval", 65535, BOND_VALFLAG_MAX}, - { "default", 255, BOND_VALFLAG_DEFAULT}, - { NULL, -1, 0}, -}; - static const struct bond_opt_value bond_ad_user_port_key_tbl[] = { { "minval", 0, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT}, { "maxval", 1023, BOND_VALFLAG_MAX}, @@ -497,7 +490,7 @@ static const struct bond_option bond_opts[BOND_OPT_LAST] = { .id = BOND_OPT_ACTOR_PORT_PRIO, .name = "actor_port_prio", .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)), - .values = bond_actor_port_prio_tbl, + .flags = BOND_OPTFLAG_RAWVAL, .set = bond_option_actor_port_prio_set, }, [BOND_OPT_AD_ACTOR_SYSTEM] = { -- 2.50.1

3 weeks, 2 days

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[PATCH net v2] selftests/vsock: avoid false-positives when checking dmesg

by Bobby Eshleman

From: Bobby Eshleman <bobbyeshleman(a)meta.com> Sometimes VMs will have some intermittent dmesg warnings that are unrelated to vsock. Change the dmesg parsing to filter on strings containing 'vsock' to avoid false positive failures that are unrelated to vsock. The downside is that it is possible for some vsock related warnings to not contain the substring 'vsock', so those will be missed. Fixes: a4a65c6fe08b ("selftests/vsock: add initial vmtest.sh for vsock") Reviewed-by: Simon Horman <horms(a)kernel.org> Signed-off-by: Bobby Eshleman <bobbyeshleman(a)meta.com> --- Previously was part of the series: https://lore.kernel.org/all/20251022-vsock-selftests-fixes-and-improvements… --- Changes in v2: - use consistent quoting for vsock string - Link to v1: https://lore.kernel.org/r/20251104-vsock-vmtest-dmesg-fix-v1-1-80c8db3f5dfe… --- tools/testing/selftests/vsock/vmtest.sh | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/vsock/vmtest.sh b/tools/testing/selftests/vsock/vmtest.sh index edacebfc1632..8ceeb8a7894f 100755 --- a/tools/testing/selftests/vsock/vmtest.sh +++ b/tools/testing/selftests/vsock/vmtest.sh @@ -389,9 +389,9 @@ run_test() { local rc host_oops_cnt_before=$(dmesg | grep -c -i 'Oops') - host_warn_cnt_before=$(dmesg --level=warn | wc -l) + host_warn_cnt_before=$(dmesg --level=warn | grep -c -i 'vsock') vm_oops_cnt_before=$(vm_ssh -- dmesg | grep -c -i 'Oops') - vm_warn_cnt_before=$(vm_ssh -- dmesg --level=warn | wc -l) + vm_warn_cnt_before=$(vm_ssh -- dmesg --level=warn | grep -c -i 'vsock') name=$(echo "${1}" | awk '{ print $1 }') eval test_"${name}" @@ -403,7 +403,7 @@ run_test() { rc=$KSFT_FAIL fi - host_warn_cnt_after=$(dmesg --level=warn | wc -l) + host_warn_cnt_after=$(dmesg --level=warn | grep -c -i 'vsock') if [[ ${host_warn_cnt_after} -gt ${host_warn_cnt_before} ]]; then echo "FAIL: kernel warning detected on host" | log_host "${name}" rc=$KSFT_FAIL @@ -415,7 +415,7 @@ run_test() { rc=$KSFT_FAIL fi - vm_warn_cnt_after=$(vm_ssh -- dmesg --level=warn | wc -l) + vm_warn_cnt_after=$(vm_ssh -- dmesg --level=warn | grep -c -i 'vsock') if [[ ${vm_warn_cnt_after} -gt ${vm_warn_cnt_before} ]]; then echo "FAIL: kernel warning detected on vm" | log_host "${name}" rc=$KSFT_FAIL --- base-commit: 89aec171d9d1ab168e43fcf9754b82e4c0aef9b9 change-id: 20251104-vsock-vmtest-dmesg-fix-b2c59e1d9c38 Best regards, -- Bobby Eshleman <bobbyeshleman(a)meta.com>

3 weeks, 2 days

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[PATCH] selftests: timers: nanosleep: Add tests for return of remaining time

by Thomas Weißschuh

If interrupted by a signal clock_nanosleep() returns the remaining time into the structure pointed to by the rmtp parameter. So far this functionality was not tested by the timer selftests. Extend the nanosleep selftest to cover this feature. Signed-off-by: Thomas Weißschuh <thomas.weissschuh(a)linutronix.de> --- tools/testing/selftests/timers/nanosleep.c | 55 ++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) diff --git a/tools/testing/selftests/timers/nanosleep.c b/tools/testing/selftests/timers/nanosleep.c index 252c6308c5698f9094b8bdc39c284077b5d55531..10badae13ebeb8d596839d5aab1a5161526eeaa9 100644 --- a/tools/testing/selftests/timers/nanosleep.c +++ b/tools/testing/selftests/timers/nanosleep.c @@ -116,6 +116,56 @@ int nanosleep_test(int clockid, long long ns) return 0; } +static void dummy_event_handler(int val) +{ + /* No action needed */ +} + +static int nanosleep_test_remaining(int clockid) +{ + struct timespec rqtp = {}, rmtp = {}; + struct itimerspec itimer = {}; + struct sigaction sa = {}; + timer_t timer; + int ret; + + sa.sa_handler = dummy_event_handler; + ret = sigaction(SIGALRM, &sa, NULL); + if (ret) + return -1; + + ret = timer_create(clockid, NULL, &timer); + if (ret) + return -1; + + itimer.it_value.tv_nsec = NSEC_PER_SEC / 4; + ret = timer_settime(timer, 0, &itimer, NULL); + if (ret) + return -1; + + rqtp.tv_nsec = NSEC_PER_SEC / 2; + ret = clock_nanosleep(clockid, 0, &rqtp, &rmtp); + if (ret != EINTR) + return -1; + + ret = timer_delete(timer); + if (ret) + return -1; + + sa.sa_handler = SIG_DFL; + ret = sigaction(SIGALRM, &sa, NULL); + if (ret) + return -1; + + if (!in_order((struct timespec) {}, rmtp)) + return -1; + + if (!in_order(rmtp, rqtp)) + return -1; + + return 0; +} + int main(int argc, char **argv) { long long length; @@ -150,6 +200,11 @@ int main(int argc, char **argv) } length *= 100; } + ret = nanosleep_test_remaining(clockid); + if (ret < 0) { + ksft_test_result_fail("%-31s\n", clockstring(clockid)); + ksft_exit_fail(); + } ksft_test_result_pass("%-31s\n", clockstring(clockid)); next: ret = 0; --- base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787 change-id: 20251014-nanosleep-rtmp-selftest-6c14f1374f6f Best regards, -- Thomas Weißschuh <thomas.weissschuh(a)linutronix.de>

3 weeks, 2 days

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[PATCH] selftests: net: local_termination: Wait for interfaces to come up

by A. Sverdlin

From: Alexander Sverdlin <alexander.sverdlin(a)siemens.com> It seems that most of the tests prepare the interfaces once before the test run (setup_prepare()), rely on setup_wait() to wait for link and only then run the test(s). local_termination brings the physical interfaces down and up during test run but never wait for them to come up. If the auto-negotiation takes some seconds, first test packets are being lost, which leads to false-negative test results. Use setup_wait_dev() after corresponding simple_if_init() on physical interfaces to make sure auto-negotiation has been completed and test packets will not be lost because of the race against link establishment. The wait has to be done in each individual test because the interfaces have to be brough up first and only then we can wait for link (not individually, because they are expected to be looped in pairs). Fixes: 90b9566aa5cd3f ("selftests: forwarding: add a test for local_termination.sh") Signed-off-by: Alexander Sverdlin <alexander.sverdlin(a)siemens.com> --- .../selftests/net/forwarding/local_termination.sh | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/testing/selftests/net/forwarding/local_termination.sh b/tools/testing/selftests/net/forwarding/local_termination.sh index ecd34f364125c..369c8b2c1f4a2 100755 --- a/tools/testing/selftests/net/forwarding/local_termination.sh +++ b/tools/testing/selftests/net/forwarding/local_termination.sh @@ -430,6 +430,8 @@ standalone() h1_create h2_create macvlan_create $h2 + setup_wait_dev $h1 + setup_wait_dev $h2 run_test $h1 $h2 $skip_ptp $no_unicast_flt "$h2" @@ -448,6 +450,8 @@ test_bridge() bridge_create $vlan_filtering simple_if_init br0 $H2_IPV4/24 $H2_IPV6/64 macvlan_create br0 + setup_wait_dev $h1 + setup_wait_dev $h2 run_test $h1 br0 $skip_ptp $no_unicast_flt \ "vlan_filtering=$vlan_filtering bridge" @@ -480,6 +484,8 @@ test_vlan() h1_vlan_create h2_vlan_create macvlan_create $h2.100 + setup_wait_dev $h1 + setup_wait_dev $h2 run_test $h1.100 $h2.100 $skip_ptp $no_unicast_flt "VLAN upper" @@ -505,6 +511,8 @@ vlan_over_bridged_port() h2_vlan_create bridge_create $vlan_filtering macvlan_create $h2.100 + setup_wait_dev $h1 + setup_wait_dev $h2 run_test $h1.100 $h2.100 $skip_ptp $no_unicast_flt \ "VLAN over vlan_filtering=$vlan_filtering bridged port" @@ -536,6 +544,8 @@ vlan_over_bridge() simple_if_init br0 vlan_create br0 100 vbr0 $H2_IPV4/24 $H2_IPV6/64 macvlan_create br0.100 + setup_wait_dev $h1 + setup_wait_dev $h2 if [ $vlan_filtering = 1 ]; then bridge vlan add dev $h2 vid 100 master -- 2.51.1

3 weeks, 2 days

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[PATCH v4 00/35] sparc64: vdso: Switch to the generic vDSO library

by Thomas Weißschuh

The generic vDSO provides a lot common functionality shared between different architectures. SPARC is the last architecture not using it, preventing some necessary code cleanup. Make use of the generic infrastructure. Follow-up to and replacement for Arnd's SPARC vDSO removal patches: https://lore.kernel.org/lkml/20250707144726.4008707-1-arnd@kernel.org/ SPARC64 can not map .bss into userspace, so the vDSO datapages are switched over to be allocated dynamically. This requires changes to the s390 and random subsystem vDSO initialization as preparation. The random subsystem changes in turn require some cleanup of the vDSO headers to not end up as ugly #ifdef mess. Tested on a Niagara T4 and QEMU. This has a semantic conflict with my series "vdso: Reject absolute relocations during build" [0]. The last patch of this series expects all users of the generic vDSO library to use the vdsocheck tool. This is not the case (yet) for SPARC64. I do have the patches for the integration, the specifics will depend on which series is applied first. Based on v6.18-rc1. [0] https://lore.kernel.org/lkml/20250812-vdso-absolute-reloc-v4-0-61a8b615e5ec… Signed-off-by: Thomas Weißschuh <thomas.weissschuh(a)linutronix.de> --- Changes in v4: - Rebase on v6.18-rc1. - Keep inclusion of asm/clocksource.h from linux/clocksource.h - Reword description of "s390/time: Set up vDSO datapage later" - Link to v3: https://lore.kernel.org/r/20250917-vdso-sparc64-generic-2-v3-0-3679b1bc8ee8… Changes in v3: - Allocate vDSO data pages dynamically (and lots of preparations for that) - Drop clock_getres() - Fix 32bit clock_gettime() syscall fallback - Link to v2: https://lore.kernel.org/r/20250815-vdso-sparc64-generic-2-v2-0-b5ff80672347… Changes in v2: - Rebase on v6.17-rc1 - Drop RFC state - Fix typo in commit message - Drop duplicate 'select GENERIC_TIME_VSYSCALL' - Merge "sparc64: time: Remove architecture-specific clocksource data" into the main conversion patch. It violated the check in __clocksource_register_scale() - Link to v1: https://lore.kernel.org/r/20250724-vdso-sparc64-generic-2-v1-0-e376a3bd24d1… --- Arnd Bergmann (1): clocksource: remove ARCH_CLOCKSOURCE_DATA Thomas Weißschuh (34): selftests: vDSO: vdso_test_correctness: Handle different tv_usec types arm64: vDSO: getrandom: Explicitly include asm/alternative.h arm64: vDSO: gettimeofday: Explicitly include vdso/clocksource.h arm64: vDSO: compat_gettimeofday: Add explicit includes ARM: vdso: gettimeofday: Add explicit includes powerpc/vdso/gettimeofday: Explicitly include vdso/time32.h powerpc/vdso: Explicitly include asm/cputable.h and asm/feature-fixups.h LoongArch: vDSO: Explicitly include asm/vdso/vdso.h MIPS: vdso: Add include guard to asm/vdso/vdso.h MIPS: vdso: Explicitly include asm/vdso/vdso.h random: vDSO: Add explicit includes vdso/gettimeofday: Add explicit includes vdso/helpers: Explicitly include vdso/processor.h vdso/datapage: Remove inclusion of gettimeofday.h vdso/datapage: Trim down unnecessary includes random: vDSO: trim vDSO includes random: vDSO: remove ifdeffery random: vDSO: split out datapage update into helper functions random: vDSO: only access vDSO datapage after random_init() s390/time: Set up vDSO datapage later vdso/datastore: Reduce scope of some variables in vvar_fault() vdso/datastore: Drop inclusion of linux/mmap_lock.h vdso/datastore: Map pages through struct page vdso/datastore: Allocate data pages dynamically sparc64: vdso: Link with -z noexecstack sparc64: vdso: Remove obsolete "fake section table" reservation sparc64: vdso: Replace code patching with runtime conditional sparc64: vdso: Move hardware counter read into header sparc64: vdso: Move syscall fallbacks into header sparc64: vdso: Introduce vdso/processor.h sparc64: vdso: Switch to the generic vDSO library sparc64: vdso2c: Drop sym_vvar_start handling sparc64: vdso2c: Remove symbol handling sparc64: vdso: Implement clock_gettime64() arch/arm/include/asm/vdso/gettimeofday.h | 2 + arch/arm64/include/asm/vdso/compat_gettimeofday.h | 3 + arch/arm64/include/asm/vdso/gettimeofday.h | 2 + arch/arm64/kernel/vdso/vgetrandom.c | 2 + arch/loongarch/kernel/process.c | 1 + arch/loongarch/kernel/vdso.c | 1 + arch/mips/include/asm/vdso/vdso.h | 5 + arch/mips/kernel/vdso.c | 1 + arch/powerpc/include/asm/vdso/gettimeofday.h | 1 + arch/powerpc/include/asm/vdso/processor.h | 3 + arch/s390/kernel/time.c | 4 +- arch/sparc/Kconfig | 3 +- arch/sparc/include/asm/clocksource.h | 9 - arch/sparc/include/asm/processor.h | 3 + arch/sparc/include/asm/processor_32.h | 2 - arch/sparc/include/asm/processor_64.h | 25 -- arch/sparc/include/asm/vdso.h | 2 - arch/sparc/include/asm/vdso/clocksource.h | 10 + arch/sparc/include/asm/vdso/gettimeofday.h | 184 ++++++++++ arch/sparc/include/asm/vdso/processor.h | 41 +++ arch/sparc/include/asm/vdso/vsyscall.h | 10 + arch/sparc/include/asm/vvar.h | 75 ---- arch/sparc/kernel/Makefile | 1 - arch/sparc/kernel/time_64.c | 6 +- arch/sparc/kernel/vdso.c | 69 ---- arch/sparc/vdso/Makefile | 8 +- arch/sparc/vdso/vclock_gettime.c | 380 ++------------------- arch/sparc/vdso/vdso-layout.lds.S | 26 +- arch/sparc/vdso/vdso.lds.S | 2 - arch/sparc/vdso/vdso2c.c | 24 -- arch/sparc/vdso/vdso2c.h | 45 +-- arch/sparc/vdso/vdso32/vdso32.lds.S | 4 +- arch/sparc/vdso/vma.c | 274 +-------------- drivers/char/random.c | 71 ++-- include/linux/clocksource.h | 6 +- include/linux/vdso_datastore.h | 6 + include/vdso/datapage.h | 23 +- include/vdso/helpers.h | 1 + init/main.c | 2 + kernel/time/Kconfig | 4 - lib/vdso/datastore.c | 73 ++-- lib/vdso/getrandom.c | 3 + lib/vdso/gettimeofday.c | 17 + .../testing/selftests/vDSO/vdso_test_correctness.c | 8 +- 44 files changed, 448 insertions(+), 994 deletions(-) --- base-commit: 28b1ac5ccd8d4900a8f53f0e6e84d517a7ccc71f change-id: 20250722-vdso-sparc64-generic-2-25f2e058e92c Best regards, -- Thomas Weißschuh <thomas.weissschuh(a)linutronix.de>

3 weeks, 2 days

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[PATCH v3 0/2] Print map ID on successful creation

by Harshit Mogalapalli

Hi all, I have tried looking at an issue from the bpftool repository: https://github.com/libbpf/bpftool/issues/121 and this patch series tries to add that enhancement. Summary: Currently when a map creation is successful there is no message on the terminal, printing IDs on successful creation of maps can help notify the user and can be used in CI/CD. The first patch adds the logic for printing and the second patch adds a simple selftest for the same. Thank you very much. V1 --> V2: PATCH 1 updated [Thanks Yonghong for suggesting better way of error handling with a new label for close(fd); instead of calling multiple times] V2 --> V3: Thanks to Quentin. PATCH1: drop \n in p_err statement PATCH2: Remove messages in cases of successful ID printing. Also remove message with a "FAIL:" prefix to make it more consistent. Regards, Harshit Harshit Mogalapalli (2): bpftool: Print map ID upon creation and support JSON output selftests/bpf: Add test for bpftool map ID printing tools/bpf/bpftool/map.c | 21 +++++++++--- .../testing/selftests/bpf/test_bpftool_map.sh | 32 +++++++++++++++++++ 2 files changed, 49 insertions(+), 4 deletions(-) -- 2.50.1

3 weeks, 2 days

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[PATCH] selftests/seccomp: Fix pointer type mismatch in uprobe function declarations

by WangYuli

From: WangYuli <wangyl5933(a)chinaunicom.cn> Add __nocf_check attribute to probed_uretprobe on x86_64 to match probed_uprobe's function signature. [ Fix follow error with gcc-15: ] CC seccomp_bpf seccomp_bpf.c: In function ‘UPROBE_setup’: seccomp_bpf.c:5175:74: error: pointer type mismatch in conditional expression [-Wincompatible-pointer-types] 5175 | offset = get_uprobe_offset(variant->uretprobe ? probed_uretprobe : probed_uprobe); | ^ seccomp_bpf.c:5175:57: note: first expression has type ‘int (*)(void)’ 5175 | offset = get_uprobe_offset(variant->uretprobe ? probed_uretprobe : probed_uprobe); | ^~~~~~~~~~~~~~~~ seccomp_bpf.c:5175:76: note: second expression has type ‘int (__attribute__((nocf_check)) *)(void)’ 5175 | offset = get_uprobe_offset(variant->uretprobe ? probed_uretprobe : probed_uprobe); | ^~~~~~~~~~~~~ Signed-off-by: WangYuli <wangyl5933(a)chinaunicom.cn> Signed-off-by: WangYuli <wangyuli(a)aosc.io> --- tools/testing/selftests/seccomp/seccomp_bpf.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c index 874f17763536..19df80d18619 100644 --- a/tools/testing/selftests/seccomp/seccomp_bpf.c +++ b/tools/testing/selftests/seccomp/seccomp_bpf.c @@ -5057,17 +5057,23 @@ __naked __nocf_check noinline int probed_uprobe(void) } #pragma GCC diagnostic pop -#else +int __nocf_check noinline probed_uretprobe(void) +{ + return 1; +} + +#else /* !__x86_64__ */ + noinline int probed_uprobe(void) { return 1; } -#endif noinline int probed_uretprobe(void) { return 1; } +#endif /* __x86_64__ */ static int parse_uint_from_file(const char *file, const char *fmt) { -- 2.51.0

3 weeks, 2 days

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