On Sun, Dec 11, 2016 at 08:20:19PM +0100, Daniel Vetter wrote:
> Looping twice when we can do it once is silly. Also use a consistent
> style. Note that there's a good race with the connector list walking,
> since that is no longer protected by mode_config.mutex. But that's for
> a later patch to fix.
>
> v2: Actually try to not blow up, somehow I lost the hunk that checks
> we don't copy too much. Noticed by Chris.
>
> v3:
> - squash all drm_mode_getresources cleanups into one
> - use consistent style for walking objects (Chris)
>
> v4:
> - Use u64_to_user_ptr (Chris)
> - Don't forget to copy the last connector (Chris)
>
> v5: Chris was right ...
>
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> ---
> drivers/gpu/drm/drm_mode_config.c | 111 ++++++++++++++------------------------
> 1 file changed, 39 insertions(+), 72 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c
> index 2735a5847ffa..b1e8bbceaf39 100644
> --- a/drivers/gpu/drm/drm_mode_config.c
> +++ b/drivers/gpu/drm/drm_mode_config.c
> @@ -84,17 +84,11 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
> struct drm_file *file_priv)
> {
> struct drm_mode_card_res *card_res = data;
> - struct list_head *lh;
> struct drm_framebuffer *fb;
> struct drm_connector *connector;
> struct drm_crtc *crtc;
> struct drm_encoder *encoder;
> - int ret = 0;
> - int connector_count = 0;
> - int crtc_count = 0;
> - int fb_count = 0;
> - int encoder_count = 0;
> - int copied = 0;
> + int count, ret = 0;
I'm down to a minor int but uABI uses u32. This being C, it all comes
out in the wash. One day we may have -Wsign-compare, but not today!
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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