summaryrefslogtreecommitdiffstats
path: root/net
diff options
context:
space:
mode:
authorEric Dumazet <dada1@cosmosbay.com>2007-05-03 17:39:04 -0700
committerDavid S. Miller <davem@davemloft.net>2007-05-03 17:39:04 -0700
commitdb3459d1a71d885334831cdca6646a48f5ea0483 (patch)
tree62bd17f8abb8c4fac280103b6179e275490c5b15 /net
parentb40b4f79ce789e9e28d382c85006f62be2725282 (diff)
downloadop-kernel-dev-db3459d1a71d885334831cdca6646a48f5ea0483.zip
op-kernel-dev-db3459d1a71d885334831cdca6646a48f5ea0483.tar.gz
[IPV6]: Some cleanups in include/net/ipv6.h
1) struct ip6_flowlabel : moves 'users' field to avoid two 32bits holes for 64bit arches. Shrinks by 8 bytes sizeof(struct ip6_flowlabel) 2) ipv6_addr_cmp() and ipv6_addr_copy() dont need (void *) casts : Compiler might take into account natural alignement of in6_addr structs to emit better code for memcpy()/memcmp() Casts to (void *) force byte accesses. 3) ipv6_addr_prefix() optimization : Better to clear whole struct, as compiler can emit better code for memset(addr, 0, 16) (2 stores on x86_64), and avoid some conditional branches. # size vmlinux.after vmlinux.before text data bss dec hex filename 5262262 647612 557432 6467306 62aeea vmlinux.after 5262550 647612 557432 6467594 62b00a vmlinux.before thats 288 bytes saved. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud