Re: [PATCH v3 02/14] drm/msm/dp: fix msm_dp_utils_pack_sdp_header interface

From: Abhinav Kumar
Date: Wed Dec 11 2024 - 20:24:09 EST




On 12/11/2024 3:41 PM, Dmitry Baryshkov wrote:
The msm_dp_utils_pack_sdp_header() accepts an unlimited-size u32 pointer
for the header output, while it expects a two-element array. It performs
a sizeof check which is always true on 64-bit platforms (since
sizeof(u32*) is 8) and is always false on 32-bit platforms. It returns
an error code which nobody actually checks.

Fix the function interface to accept u32[2] and return void, skipping
all the checks.

Fixes: 55fb8ffc1802 ("drm/msm/dp: add VSC SDP support for YUV420 over DP")
Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/gpu/drm/msm/dp/dp_utils.c | 10 +---------
drivers/gpu/drm/msm/dp/dp_utils.h | 2 +-
2 files changed, 2 insertions(+), 10 deletions(-)


This was included in -fixes as well. So no need to include.