Commit 8f789c48 authored by David S. Miller's avatar David S. Miller
Browse files

[NET]: Elminate spurious print_mac() calls. 



Patrick McHardy notes that print_mac() can get invoked
even if the result it unused (f.e. as an argument to
pr_debug() when DEBUG is not defined).

Mark this function as "__pure" to eliminate this problem.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 988d0093

include/linux/if_ether.h

+1 −1
Original line number Diff line number Diff line
@@ -129,7 +129,7 @@ extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len); 
/*

 *	Display a 6 byte device address (MAC) in a readable format.

 */

extern char *print_mac(char *buf, const unsigned char *addr);

extern __pure char *print_mac(char *buf, const unsigned char *addr);

#define MAC_BUF_SIZE	18

#define DECLARE_MAC_BUF(var) char var[MAC_BUF_SIZE] __maybe_unused

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