diff mbox series

[v3,12/16] bbdev: use previous value atomic fetch operations

Message ID 1679338836-21321-13-git-send-email-roretzla@linux.microsoft.com (mailing list archive)
State Accepted, archived
Delegated to: David Marchand
Headers
Series replace __atomic operations returning new value |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Tyler Retzlaff March 20, 2023, 7 p.m. UTC 
  Use __atomic_fetch_{add,and,or,sub,xor} instead of
__atomic_{add,and,or,sub,xor}_fetch adding the necessary code to
allow consumption of the resulting value.

Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
---
 lib/bbdev/rte_bbdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/lib/bbdev/rte_bbdev.c b/lib/bbdev/rte_bbdev.c
index 1521cdb..9df0837 100644
--- a/lib/bbdev/rte_bbdev.c
+++ b/lib/bbdev/rte_bbdev.c
@@ -250,8 +250,8 @@  struct rte_bbdev *
 	}
 
 	/* clear shared BBDev Data if no process is using the device anymore */
-	if (__atomic_sub_fetch(&bbdev->data->process_cnt, 1,
-			      __ATOMIC_RELAXED) == 0)
+	if (__atomic_fetch_sub(&bbdev->data->process_cnt, 1,
+			      __ATOMIC_RELAXED) - 1 == 0)
 		memset(bbdev->data, 0, sizeof(*bbdev->data));
 
 	memset(bbdev, 0, sizeof(*bbdev));