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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2019-02-27 11:37:26 +0100
committerDavid S. Miller <davem@davemloft.net>2019-02-27 18:34:39 +0100
commitf4d7b3e23d259c44f1f1c39645450680fcd935d6 (patch)
treed6355af1c739be9c4ccbdcaf7b8305a9e456d81c
parentbnxt_en: Drop oversize TX packets to prevent errors. (diff)
downloadlinux-f4d7b3e23d259c44f1f1c39645450680fcd935d6.tar.xz
linux-f4d7b3e23d259c44f1f1c39645450680fcd935d6.zip
net: dev: Use unsigned integer as an argument to left-shift
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>
-rw-r--r--include/linux/netdevice.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 86dbb3e29139..848b54b7ec91 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3861,7 +3861,7 @@ 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)