| Message ID | 20200508111035.18813-1-chris@chris-wilson.co.uk (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | dma-buf: Use atomic_fetch_add() for the context id | expand |
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);
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> --- drivers/dma-buf/dma-fence.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)