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ipv4: Initialize flowi4_multipath_hash in data path

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flowi4_multipath_hash was added by the commit referenced below for
tunnels. Unfortunately, the patch did not initialize the new field
for several fast path lookups that do not initialize the entire flow
struct to 0. Fix those locations. Currently, flowi4_multipath_hash
is random garbage and affects the hash value computed by
fib_multipath_hash for multipath selection.

Fixes: 24ba14406c ("route: Add multipath_hash in flowi_common to make user-define hash")
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: wenxu <wenxu@ucloud.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern
2020-09-13 12:43:39 -06:00
committed by David S. Miller
parent 9d6e0c8b70
commit 1869e226a7
4 changed files with 4 additions and 0 deletions
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include/net/flow.h
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@@ -116,6 +116,7 @@ static inline void flowi4_init_output(struct flowi4 *fl4, int oif,
fl4->saddr = saddr;
fl4->fl4_dport = dport;
fl4->fl4_sport = sport;
fl4->flowi4_multipath_hash = 0;
}
/* Reset some input parameters after previous lookup */