On Sat, May 16, 2020 at 10:23:28PM +0100, Chris Wilson wrote:
> drivers/gpu/drm/drm_client_modeset.c: In function ‘drm_client_firmware_config’:
> ./include/linux/bits.h:26:28: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
> __builtin_constant_p((l) > (h)), (l) > (h), 0)))
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Took me a while to spot where this goes boom, kinda wonder whether we
should have an
if (WARN_ON(!connector_count))
return -EINVAL;
somewhere in here. Just for belts&suspenders approach.
Anyway this looks good.
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
> drivers/gpu/drm/drm_client_modeset.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
> index 7443114bd713..6e9530df0737 100644
> --- a/drivers/gpu/drm/drm_client_modeset.c
> +++ b/drivers/gpu/drm/drm_client_modeset.c
> @@ -563,7 +563,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client,
> struct drm_client_offset *offsets,
> bool *enabled, int width, int height)
> {
> - unsigned int count = min_t(unsigned int, connector_count, BITS_PER_LONG);
> + const int count = min_t(unsigned int, connector_count, BITS_PER_LONG);
> unsigned long conn_configured, conn_seq, mask;
> struct drm_device *dev = client->dev;
> int i, j;
> --
> 2.20.1
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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