4:50 a.m.
Hi Ankit,
url:
https://github.com/0day-ci/linux/commits/Ankit-Nautiyal/Add-support-for-D...
base: git://anongit.freedesktop.org/drm-intel for-linux-next
config: i386-randconfig-m021-20201209 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com>
smatch warnings:
drivers/gpu/drm/drm_dp_helper.c:3185 drm_dp_pcon_convert_rgb_to_ycbcr() warn: was
&& intended here instead of ||?
vim +3185 drivers/gpu/drm/drm_dp_helper.c
+int drm_dp_pcon_convert_rgb_to_ycbcr(struct drm_dp_aux *aux, u8 color_spc)
+{
+ int ret;
+ u8 buf;
+
+ if (color_spc != DP_CONVERSION_BT601_RGB_YCBCR_ENABLE ||
+ color_spc != DP_CONVERSION_BT709_RGB_YCBCR_ENABLE ||
+ color_spc != DP_CONVERSION_BT2020_RGB_YCBCR_ENABLE)
+ return -EINVAL;
"color_spc" cannot possibly be equal to three different values so this
function will always return -EINVAL.
+
+ ret = drm_dp_dpcd_readb(aux, DP_PROTOCOL_CONVERTER_CONTROL_2, &buf);
+ if (ret < 0)
+ return ret;
+
+ buf |= color_spc;
+ ret = drm_dp_dpcd_writeb(aux, DP_PROTOCOL_CONVERTER_CONTROL_2, buf);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org