On Mon, Dec 16, 2024 at 09:33:13AM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
>
> Passing a variable string as a printf style format is potentially
> dangerous that -Wformat-security can warn about if enabled. A new
> instance just got added:
>
> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c: In function 'dpu_kms_mdp_snapshot':
> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c:1046:49: error: format not a string literal and no format arguments [-Werror=format-security]
> 1046 | vbif->name);
> | ~~~~^~~~~~
>
> Fix this one and the preexisting -Wformat-security warnings the in the
> DRM code for snapdragon.
>
> Fixes: 1a40bb31fcf1 ("drm/msm/dpu: Add VBIF to DPU snapshot") # and others
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
> I have a larger series that I still plan to send eventually, sending this
> one now as I just saw another one get added. The warning is enabled by
> default because there are still over 100 other files with the same problem.
> ---
> drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 2 +-
> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 28 ++++++++++++++++---------
> 2 files changed, 19 insertions(+), 11 deletions(-)
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
--
With best wishes
Dmitry
