Re: [PATCH 14/24] drm/nouveau: Merge pre/postclose hooks

Sean Paul
2017-03-13T19:07:54Z

On Wed, Mar 08, 2017 at 03:12:47PM +0100, Daniel Vetter wrote:
> Again no apparent explanation for the split except hysterical raisins.
> Merging them also makes it a bit more obviuos what's going on wrt the
> runtime pm refdancing.

Yeah, holding the pm reference from preclose to postclose had me a little
nervous. However, it seems like the reference is just needed for
nouveau_abi16_fini() and nouveau_cli_fini(), as opposed to being needed while
drm_release() is active.

Reviewed-by: Sean Paul <seanpaul@chromium.org>

>
> Cc: Ben Skeggs <bskeggs@redhat.com>
> Cc: nouveau@lists.freedesktop.org
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
> drivers/gpu/drm/nouveau/nouveau_drm.c | 9 +--------
> 1 file changed, 1 insertion(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
> index f0bb7606eb8b..0e26be017de7 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_drm.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
> @@ -881,7 +881,7 @@ nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
> }
>
> static void
> -nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
> +nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
> {
> struct nouveau_cli *cli = nouveau_cli(fpriv);
> struct nouveau_drm *drm = nouveau_drm(dev);
> @@ -897,12 +897,6 @@ nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
> list_del(&cli->head);
> mutex_unlock(&drm->client.mutex);
>
> -}
> -
> -static void
> -nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
> -{
> - struct nouveau_cli *cli = nouveau_cli(fpriv);
> nouveau_cli_fini(cli);
> kfree(cli);
> pm_runtime_mark_last_busy(dev->dev);
> @@ -974,7 +968,6 @@ driver_stub = {
> .load = nouveau_drm_load,
> .unload = nouveau_drm_unload,
> .open = nouveau_drm_open,
> - .preclose = nouveau_drm_preclose,
> .postclose = nouveau_drm_postclose,
> .lastclose = nouveau_vga_lastclose,
>
> --
> 2.11.0
>
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