4.19-stable review patch. If anyone has any objections, please let me know.
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From: Sherry Yang sherry.yang@oracle.com
[ Upstream commit 25b85075150fe8adddb096db8a4b950353045ee1 ]
The following build error was triggered because of NULL string argument:
BUILDSTDERR: drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c: In function 'mdp5_smp_dump': BUILDSTDERR: drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c:352:51: error: '%s' directive argument is null [-Werror=format-overflow=] BUILDSTDERR: 352 | drm_printf(p, "%s:%d\t%d\t%s\n", BUILDSTDERR: | ^~ BUILDSTDERR: drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c:352:51: error: '%s' directive argument is null [-Werror=format-overflow=]
This happens from the commit a61ddb4393ad ("drm: enable (most) W=1 warnings by default across the subsystem"). Using "(null)" instead to fix it.
Fixes: bc5289eed481 ("drm/msm/mdp5: add debugfs to show smp block status") Signed-off-by: Sherry Yang sherry.yang@oracle.com Reviewed-by: Abhinav Kumar quic_abhinavk@quicinc.com Patchwork: https://patchwork.freedesktop.org/patch/611071/ Link: https://lore.kernel.org/r/20240827165337.1075904-1-sherry.yang@oracle.com Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c index 96c2b828dba4a..2d9027c8418ee 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c @@ -366,7 +366,7 @@ void mdp5_smp_dump(struct mdp5_smp *smp, struct drm_printer *p)
drm_printf(p, "%s:%d\t%d\t%s\n", pipe2name(pipe), j, inuse, - plane ? plane->name : NULL); + plane ? plane->name : "(null)");
total += inuse; }