CC: [email protected] BCC: [email protected] CC: Linux Memory Management List <[email protected]> TO: Maxime Ripard <[email protected]> CC: Melissa Wen <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 07dc787be2316e243a16a33d0a9b734cd9365bd3 commit: 30f8c74ca9b7b3a2db55f6bb1d2e9f8c47a79f94 [3459/4317] drm/vc4: Warn if some v3d code is run on BCM2711 :::::: branch date: 2 days ago :::::: commit date: 3 days ago config: parisc-randconfig-m031-20220619 (https://download.01.org/0day-ci/archive/20220619/[email protected]/config) compiler: hppa-linux-gcc (GCC) 11.3.0 If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> smatch warnings: drivers/gpu/drm/vc4/vc4_perfmon.c:25 vc4_perfmon_get() warn: variable dereferenced before check 'perfmon' (see line 20) drivers/gpu/drm/vc4/vc4_perfmon.c:240 vc4_perfmon_get_values_ioctl() warn: variable dereferenced before check 'perfmon' (see line 237) drivers/gpu/drm/vc4/vc4_validate.c:173 vc4_check_tex_size() warn: signedness bug returning '(-19)' vim +/perfmon +25 drivers/gpu/drm/vc4/vc4_perfmon.c 65101d8c910820 Boris Brezillon 2018-01-12 17 65101d8c910820 Boris Brezillon 2018-01-12 18 void vc4_perfmon_get(struct vc4_perfmon *perfmon) 65101d8c910820 Boris Brezillon 2018-01-12 19 { 30f8c74ca9b7b3 Maxime Ripard 2022-06-10 @20 struct vc4_dev *vc4 = perfmon->dev; 30f8c74ca9b7b3 Maxime Ripard 2022-06-10 21 30f8c74ca9b7b3 Maxime Ripard 2022-06-10 22 if (WARN_ON_ONCE(vc4->is_vc5)) 30f8c74ca9b7b3 Maxime Ripard 2022-06-10 23 return; 30f8c74ca9b7b3 Maxime Ripard 2022-06-10 24 65101d8c910820 Boris Brezillon 2018-01-12 @25 if (perfmon) 65101d8c910820 Boris Brezillon 2018-01-12 26 refcount_inc(&perfmon->refcnt); 65101d8c910820 Boris Brezillon 2018-01-12 27 } 65101d8c910820 Boris Brezillon 2018-01-12 28 :::::: The code at line 25 was first introduced by commit :::::: 65101d8c9108201118efa7e08f4e2c57f438deb9 drm/vc4: Expose performance counters to userspace :::::: TO: Boris Brezillon <[email protected]> :::::: CC: Eric Anholt <[email protected]> -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
