From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- tools/perf/tests/perf-hooks.c | 49 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 tools/perf/tests/perf-hooks.c (limited to 'tools/perf/tests/perf-hooks.c') diff --git a/tools/perf/tests/perf-hooks.c b/tools/perf/tests/perf-hooks.c new file mode 100644 index 000000000..78cdeb896 --- /dev/null +++ b/tools/perf/tests/perf-hooks.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include + +#include "tests.h" +#include "debug.h" +#include "perf-hooks.h" + +static void sigsegv_handler(int sig __maybe_unused) +{ + pr_debug("SIGSEGV is observed as expected, try to recover.\n"); + perf_hooks__recover(); + signal(SIGSEGV, SIG_DFL); + raise(SIGSEGV); + exit(-1); +} + + +static void the_hook(void *_hook_flags) +{ + int *hook_flags = _hook_flags; + + *hook_flags = 1234; + + /* Generate a segfault, test perf_hooks__recover */ + raise(SIGSEGV); +} + +static int test__perf_hooks(struct test_suite *test __maybe_unused, int subtest __maybe_unused) +{ + int hook_flags = 0; + + signal(SIGSEGV, sigsegv_handler); + perf_hooks__set_hook("test", the_hook, &hook_flags); + perf_hooks__invoke_test(); + + /* hook is triggered? */ + if (hook_flags != 1234) { + pr_debug("Setting failed: %d (%p)\n", hook_flags, &hook_flags); + return TEST_FAIL; + } + + /* the buggy hook is removed? */ + if (perf_hooks__get_hook("test")) + return TEST_FAIL; + return TEST_OK; +} + +DEFINE_SUITE("perf hooks", perf_hooks); -- cgit v1.3.1