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authorDavid S. Miller <davem@davemloft.net>2008-02-18 16:50:22 -0800
committerDavid S. Miller <davem@davemloft.net>2008-02-18 16:50:22 -0800
commit8f789c48448aed74fe1c07af76de8f04adacec7d (patch)
tree6939205a4c21453ae41bae92ce8c10a728c4bae3 /include/linux/if_ether.h
parent988d0093f9cb2bf27c299e373f9cbaac47dab2c1 (diff)
[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: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/if_ether.h')
-rw-r--r--include/linux/if_ether.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
index 7a1e011b8a2..42dc6a3571e 100644
--- a/include/linux/if_ether.h
+++ b/include/linux/if_ether.h
@@ -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