From 3c87cf73533fbbb15577c78c2e9a50ebe03861d1 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 27 Feb 2019 13:37:26 +0300
Subject: [PATCH 4/6] net: dev: Use unsigned integer as an argument to
left-shift
Git-commit: f4d7b3e23d259c44f1f1c39645450680fcd935d6
References: git-fixes
Patch-mainline: v5.0
1 << 31 is Undefined Behaviour according to the C standard.
Use U type modifier to avoid theoretical overflow.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
include/linux/netdevice.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 1113e9c2f3f2..aebfe3461551 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3823,7 +3823,7 @@ static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits)
if (debug_value == 0) /* no output */
return 0;
/* set low N bits */
- return (1 << debug_value) - 1;
+ return (1U << debug_value) - 1;
}
static inline void __netif_tx_lock(struct netdev_queue *txq, int cpu)
--
2.16.4