MSM8960: gpu/drm/dp/drm_dp.c:59:27: warning: array subscript 10 is outside, array bounds of 'const u8[6]'

From: Rudraksha Gupta
Date: Tue Mar 01 2022 - 21:39:26 EST


Hi all,


I am getting this warning when compiling the kernel for the MSM8960 with this defconfig: https://raw.githubusercontent.com/apq8064-mainline/linux/qcom-apq8064-next/arch/arm/configs/qcom_apq8064_defconfig


Warning:

../drivers/gpu/drm/dp/drm_dp.c: In function 'drm_dp_get_adjust_request_post_cursor':
../drivers/gpu/drm/dp/drm_dp.c:59:27: warning: array subscript 10 is outside array bounds of 'const u8[6]' {aka 'const unsigned char[6]'} [-Warray-bounds]
   59 |         return link_status[r - DP_LANE0_1_STATUS];
      |                ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
../drivers/gpu/drm/dp/drm_dp.c:210:51: note: while referencing 'link_status'
  210 | u8 drm_dp_get_adjust_request_post_cursor(const u8 link_status[DP_LINK_STATUS_SIZE],
      | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~