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Date: Sat, 31 Aug 2013 18:27:50 -0400 (EDT) From: David Miller <davem@...emloft.net> To: joe@...ches.com Cc: eric.dumazet@...il.com, netdev@...r.kernel.org Subject: Re: [PATCH net-next] etherdevice: Optimize compare_ether_addr/ether_addr_equal From: Joe Perches <joe@...ches.com> Date: Sat, 31 Aug 2013 01:54:16 -0700 > When CONFIG_HAS_EFFICIENT_UNALIGNED_ACCESS is set, > optimize compare_ether_addr a little by removing an > xor and or by using a u32 and u16 comparison > instead of 3 separate u16 comparisons. > > Make the ether_addr_equal_64bits code a bit simpler > by adding a test for CONFIG_64BIT and calling > ether_addr_equal otherwise. > > This also slightly improves ether_addr_equal_64bits > by removing the zap_last_2bytes shifts in the !64bit > case. > > Signed-off-by: Joe Perches <joe@...ches.com> You'll need to update Documantion/unaligned-memory-access.txt as well because it uses this funcation as a "real life" example. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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