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dma-fence: Silence sparse warning in dma_fence_describe

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Sparse complains about assigning a string to a __rcu annotated local
variable:

drivers/dma-buf/dma-fence.c:1040:38: warning: incorrect type in initializer (different address spaces)
drivers/dma-buf/dma-fence.c:1040:38:    expected char const [noderef] __rcu *timeline
drivers/dma-buf/dma-fence.c:1040:38:    got char *
drivers/dma-buf/dma-fence.c:1041:36: warning: incorrect type in initializer (different address spaces)
drivers/dma-buf/dma-fence.c:1041:36:    expected char const [noderef] __rcu *driver
drivers/dma-buf/dma-fence.c:1041:36:    got char *

It is harmless but lets silence it.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Fixes: ac364014fd ("dma-buf: cleanup dma_fence_describe v3")
Cc: Christian König <christian.koenig@amd.com>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
Link: https://lore.kernel.org/r/20260415083207.40513-1-tvrtko.ursulin@igalia.com
This commit is contained in:
Tvrtko Ursulin 2026-04-15 09:32:06 +01:00 committed by Tvrtko Ursulin
parent be19b43f92
commit 7daff375fa
1 changed files with 2 additions and 2 deletions
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4
drivers/dma-buf/dma-fence.c
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@ -1021,8 +1021,8 @@ EXPORT_SYMBOL(dma_fence_set_deadline);
*/
void dma_fence_describe(struct dma_fence *fence, struct seq_file *seq)
{
const char __rcu *timeline = "";
const char __rcu *driver = "";
const char __rcu *timeline = (const char __rcu *)"";
const char __rcu *driver = (const char __rcu *)"";
const char *signaled = "";
rcu_read_lock();