From: Danilo Krummrich Date: Sat, 16 Sep 2023 01:14:58 +0000 (+0200) Subject: drm/nouveau: fence: fix type cast warning in nouveau_fence_emit() X-Git-Tag: v6.6-rc3~22^2~3^2~7 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7ece3fc9b76b2d4596607fd8751f36c4e5f1f072;p=thirdparty%2Fkernel%2Flinux.git drm/nouveau: fence: fix type cast warning in nouveau_fence_emit() Fix the following warning. drivers/gpu/drm/nouveau/nouveau_fence.c:210:45: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct nouveau_channel *chan @@ got struct nouveau_channel [noderef] __rcu *channel We're just about to emit the fence, there is nothing to protect against yet, hence it is safe to just cast __rcu away. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202309140340.BwKXzaDx-lkp@intel.com/ Fixes: 978474dc8278 ("drm/nouveau: fence: fix undefined fence state after emit") Signed-off-by: Danilo Krummrich Reviewed-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20230916011501.15813-1-dakr@redhat.com --- diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c index 61d9e70da9fd5..ca762ea554136 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.c +++ b/drivers/gpu/drm/nouveau/nouveau_fence.c @@ -207,7 +207,7 @@ nouveau_fence_context_new(struct nouveau_channel *chan, struct nouveau_fence_cha int nouveau_fence_emit(struct nouveau_fence *fence) { - struct nouveau_channel *chan = fence->channel; + struct nouveau_channel *chan = unrcu_pointer(fence->channel); struct nouveau_fence_chan *fctx = chan->fence; struct nouveau_fence_priv *priv = (void*)chan->drm->fence; int ret;