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

From: Jani Nikula <[email-masked]>
Date: Wed, 02 Mar 2022 13:33:56 +0200

On Tue, 01 Mar 2022, Rudraksha Gupta <[email-masked]> wrote:
> 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],
>        | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>

Please see https://lore.kernel.org/r/[email-masked]

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Graphics Center