CC: [email protected] BCC: [email protected] CC: [email protected] CC: [email protected] CC: [email protected] TO: Imre Deak <[email protected]> CC: Jani Nikula <[email protected]>
tree: git://anongit.freedesktop.org/drm/drm-tip drm-tip head: 5a4dce336cfb95d05d7bedc0ab0c623784735c79 commit: d8bb92e70a434584f5b8a882eb46930cc22fd45a [674/689] drm/dp: Factor out a function to probe a DPCD address :::::: branch date: 3 hours ago :::::: commit date: 29 hours ago config: x86_64-randconfig-c022 (https://download.01.org/0day-ci/archive/20220416/[email protected]/config) compiler: gcc-11 (Debian 11.2.0-19) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> Reported-by: Julia Lawall <[email protected]> cocci warnings: (new ones prefixed by >>) >> drivers/gpu/drm/dp/drm_dp.c:551:12-13: WARNING opportunity for min() vim +551 drivers/gpu/drm/dp/drm_dp.c c197db75ff5c1d drivers/gpu/drm/drm_dp_helper.c Thierry Reding 2013-11-28 529 d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 530 /** d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 531 * drm_dp_dpcd_probe() - probe a given DPCD address with a 1-byte read access d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 532 * @aux: DisplayPort AUX channel (SST) d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 533 * @offset: address of the register to probe d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 534 * d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 535 * Probe the provided DPCD address by reading 1 byte from it. The function can d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 536 * be used to trigger some side-effect the read access has, like waking up the d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 537 * sink, without the need for the read-out value. d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 538 * d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 539 * Returns 0 if the read access suceeded, or a negative error code on failure. d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 540 */ d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 541 int drm_dp_dpcd_probe(struct drm_dp_aux *aux, unsigned int offset) d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 542 { d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 543 u8 buffer; d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 544 int ret; d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 545 d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 546 ret = drm_dp_dpcd_access(aux, DP_AUX_NATIVE_READ, offset, &buffer, 1); d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 547 WARN_ON(ret == 0); d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 548 d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 549 drm_dp_dump_access(aux, DP_AUX_NATIVE_READ, offset, &buffer, ret); d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 550 d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 @551 return ret < 0 ? ret : 0; d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 552 } d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 553 EXPORT_SYMBOL(drm_dp_dpcd_probe); d8bb92e70a4345 drivers/gpu/drm/dp/drm_dp.c Imre Deak 2022-04-11 554 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
