Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> Shrink the strncpy bounds to ensure the NUL-terminator can fit within
> the embedded array:
>
> In file included from drivers/gpu/drm/i915/gem/i915_gem_context.c:2475:
> drivers/gpu/drm/i915/gem/selftests/mock_context.c: In function ‘mock_context’:
> drivers/gpu/drm/i915/gem/selftests/mock_context.c:40:3: error: ‘strncpy’ specified bound 24 equals destination size [-Werror=stringop-truncation]
> 40 | strncpy(ctx->name, name, sizeof(ctx->name));
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/gem/selftests/mock_context.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gem/selftests/mock_context.c b/drivers/gpu/drm/i915/gem/selftests/mock_context.c
> index 7bad8fed4238..81764289cf0d 100644
> --- a/drivers/gpu/drm/i915/gem/selftests/mock_context.c
> +++ b/drivers/gpu/drm/i915/gem/selftests/mock_context.c
> @@ -37,7 +37,7 @@ mock_context(struct drm_i915_private *i915,
> if (name) {
> struct i915_ppgtt *ppgtt;
>
> - strncpy(ctx->name, name, sizeof(ctx->name));
> + strncpy(ctx->name, name, sizeof(ctx->name) - 1);
>
> ppgtt = mock_ppgtt(i915, name);
> if (!ppgtt)
> --
> 2.25.0
>
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