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xfrm: optimize ipv4 selector matching
authorAlexey Dobriyan <adobriyan@gmail.com>
Tue, 22 Nov 2011 06:46:02 +0000 (06:46 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 22 Nov 2011 20:27:18 +0000 (15:27 -0500)
Current addr_match() is errh, under-optimized.

Compiler doesn't know that memcmp() branch doesn't trigger for IPv4.
Also, pass addresses by value -- they fit into register.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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