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authorTonghao Zhang <xiangxia.m.yue@gmail.com>2019-11-01 22:23:50 +0800
committerDavid S. Miller <davem@davemloft.net>2019-11-03 17:18:03 -0800
commit515b65a4b99197ae062a795ab4de919e6d04be04 (patch)
treefc2ecc9ce1e57e5ce59c9fe596140ec425f197f5 /net/openvswitch
parent57f7d7b9164426c496300d254fd5167fbbf205ea (diff)
downloadlinux-515b65a4b99197ae062a795ab4de919e6d04be04.tar.bz2
net: openvswitch: simplify the flow_hash
Simplify the code and remove the unnecessary BUILD_BUG_ON. Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com> Tested-by: Greg Rose <gvrose8192@gmail.com> Acked-by: William Tu <u9012063@gmail.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/openvswitch')
-rw-r--r--net/openvswitch/flow_table.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index a10d421773f8..96757e2ed256 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -432,13 +432,10 @@ err_free_ti:
static u32 flow_hash(const struct sw_flow_key *key,
const struct sw_flow_key_range *range)
{
- int key_start = range->start;
- int key_end = range->end;
- const u32 *hash_key = (const u32 *)((const u8 *)key + key_start);
- int hash_u32s = (key_end - key_start) >> 2;
+ const u32 *hash_key = (const u32 *)((const u8 *)key + range->start);
/* Make sure number of hash bytes are multiple of u32. */
- BUILD_BUG_ON(sizeof(long) % sizeof(u32));
+ int hash_u32s = range_n_bytes(range) >> 2;
return jhash2(hash_key, hash_u32s, 0);
}