Hi Arnd,
On Thu, 2 Nov 2017 12:20:43 +0100
Arnd Bergmann <arnd@xxxxxxxx> wrote:
> Printing a size_t variable needs to use the %z format string modifier
> rather than %l, otherwise we get this warning on 64-bit architectures:
>
> drivers/gpu/drm/vc4/vc4_bo.c: In function 'vc4_bo_stats_debugfs':
> drivers/gpu/drm/vc4/vc4_bo.c:91:26: error: format '%d' expects argument of type 'int', but argument 4 has type 'size_t {aka long unsigned int}' [-Werror=format=]
>
I already sent (and applied) a fix for this bug [1].
Regards,
Boris
[1]https://patchwork.kernel.org/patch/10036075/
> Fixes: b9f19259b84d ("drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctl")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
> drivers/gpu/drm/vc4/vc4_bo.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
> index 3c3d11236910..4ae45d7dac42 100644
> --- a/drivers/gpu/drm/vc4/vc4_bo.c
> +++ b/drivers/gpu/drm/vc4/vc4_bo.c
> @@ -88,11 +88,11 @@ int vc4_bo_stats_debugfs(struct seq_file *m, void *unused)
>
> mutex_lock(&vc4->purgeable.lock);
> if (vc4->purgeable.num)
> - seq_printf(m, "%30s: %6dkb BOs (%d)\n", "userspace BO cache",
> + seq_printf(m, "%30s: %6zdkb BOs (%d)\n", "userspace BO cache",
> vc4->purgeable.size / 1024, vc4->purgeable.num);
>
> if (vc4->purgeable.purged_num)
> - seq_printf(m, "%30s: %6dkb BOs (%d)\n", "total purged BO",
> + seq_printf(m, "%30s: %6zdkb BOs (%d)\n", "total purged BO",
> vc4->purgeable.purged_size / 1024,
> vc4->purgeable.purged_num);
> mutex_unlock(&vc4->purgeable.lock);
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