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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-04-09 12:00:59 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-04-09 19:52:03 +0100 |
| commit | 29da47cfc1f0c3aad0daa89ccf284c3465971482 (patch) | |
| tree | e526c631e69fb7d34443b1aa24661412c8952337 /drivers/dma-buf | |
| parent | 4d1b58d5eafd6acbc728e41263a7de1b5e8b781a (diff) | |
| download | lwn-29da47cfc1f0c3aad0daa89ccf284c3465971482.tar.gz lwn-29da47cfc1f0c3aad0daa89ccf284c3465971482.zip | |
dma-buf: Prettify typecasts for dma-fence-chain
Inside dma-fence-chain, we use a cmpxchg on an RCU-protected pointer. To
avoid the sparse warning for using the RCU pointer directly, we have to
cast away the __rcu annotation. However, we don't need to use void*
everywhere and can stick to the dma_fence*.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200409110101.18400-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/dma-fence-chain.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma-buf/dma-fence-chain.c b/drivers/dma-buf/dma-fence-chain.c index 44a741677d25..3d123502ff12 100644 --- a/drivers/dma-buf/dma-fence-chain.c +++ b/drivers/dma-buf/dma-fence-chain.c @@ -62,7 +62,8 @@ struct dma_fence *dma_fence_chain_walk(struct dma_fence *fence) replacement = NULL; } - tmp = cmpxchg((void **)&chain->prev, (void *)prev, (void *)replacement); + tmp = cmpxchg((struct dma_fence __force **)&chain->prev, + prev, replacement); if (tmp == prev) dma_fence_put(tmp); else |