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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-05-13 08:47:47 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-05-13 13:38:59 +0100 |
| commit | 1c530d431c698f156538b8954b07df95337beb34 (patch) | |
| tree | 06a1acc1f0cd38f59b2b4b6adc653d7a0a461daa /drivers | |
| parent | 761e9f4f80a21a4b845097027030bef863001636 (diff) | |
| download | linux-stable-1c530d431c698f156538b8954b07df95337beb34.tar.gz linux-stable-1c530d431c698f156538b8954b07df95337beb34.tar.bz2 linux-stable-1c530d431c698f156538b8954b07df95337beb34.zip | |
dma-buf: Use atomic_fetch_add() for the context id
Now that atomic64_fetch_add() exists we can use it to return the base
context id, rather than the atomic64_add_return(N) - N concoction.
Suggested-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200513074809.18194-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma-buf/dma-fence.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index 052a41e2451c..90edf2b281b0 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -106,7 +106,7 @@ EXPORT_SYMBOL(dma_fence_get_stub); u64 dma_fence_context_alloc(unsigned num) { WARN_ON(!num); - return atomic64_add_return(num, &dma_fence_context_counter) - num; + return atomic64_fetch_add(num, &dma_fence_context_counter); } EXPORT_SYMBOL(dma_fence_context_alloc); |