Thread (4 messages) flat view 4 messages, 3 authors, 2021-11-22
STALE1760d

[PATCH] net-sysfs: Slightly optimize 'xps_queue_show()'

From: Christophe JAILLET <hidden>
Date: 2021-11-21 18:01:12
Also in: kernel-janitors, lkml
Subsystem: networking [general], the rest · Maintainers: "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

The 'mask' bitmap is local to this function. So the non-atomic
'__set_bit()' can be used to save a few cycles.

Signed-off-by: Christophe JAILLET <redacted>
---
 net/core/net-sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 9c01c642cf9e..3be3f4a6add3 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1452,7 +1452,7 @@ static ssize_t xps_queue_show(struct net_device *dev, unsigned int index,
 
 		for (i = map->len; i--;) {
 			if (map->queues[i] == index) {
-				set_bit(j, mask);
+				__set_bit(j, mask);
 				break;
 			}
 		}
-- 
2.30.2
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