linux-kernel - [PATCH v3 04/11] xen/events: Remove unlikely() from WARN() condition

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Message-Id: <20190829165025.15750-4-efremov@linux.com>
Date:   Thu, 29 Aug 2019 19:50:18 +0300
From:   Denis Efremov <efremov@...ux.com>
To:     linux-kernel@...r.kernel.org
Cc:     Denis Efremov <efremov@...ux.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>, Joe Perches <joe@...ches.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        xen-devel@...ts.xenproject.org
Subject: [PATCH v3 04/11] xen/events: Remove unlikely() from WARN() condition

"unlikely(WARN(x))" is excessive. WARN() already uses unlikely()
internally.

Signed-off-by: Denis Efremov <efremov@...ux.com>
Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Cc: Juergen Gross <jgross@...e.com>
Cc: Joe Perches <joe@...ches.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: xen-devel@...ts.xenproject.org
---
 drivers/xen/events/events_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 2e8570c09789..6c8843968a52 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -247,7 +247,7 @@ static void xen_irq_info_cleanup(struct irq_info *info)
  */
 unsigned int evtchn_from_irq(unsigned irq)
 {
-	if (unlikely(WARN(irq >= nr_irqs, "Invalid irq %d!\n", irq)))
+	if (WARN(irq >= nr_irqs, "Invalid irq %d!\n", irq))
 		return 0;
 
 	return info_for_irq(irq)->evtchn;
-- 
2.21.0