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net: dst_cache: minor optimization in dst_cache_set_ip6()

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There is no need to use this_cpu_ptr(dst_cache->cache) twice.

Compiler is unable to optimize the second call, because of
per-cpu constraints.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20240507132717.627518-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2024-05-07 13:27:17 +00:00 committed by Jakub Kicinski
parent 3b09b2bd0d
commit e2d09e5a1e
1 changed files with 1 additions and 1 deletions
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2
net/core/dst_cache.c
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@ -112,7 +112,7 @@ void dst_cache_set_ip6(struct dst_cache *dst_cache, struct dst_entry *dst,
return;
idst = this_cpu_ptr(dst_cache->cache);
dst_cache_per_cpu_dst_set(this_cpu_ptr(dst_cache->cache), dst,
dst_cache_per_cpu_dst_set(idst, dst,
rt6_get_cookie(dst_rt6_info(dst)));
idst->in6_saddr = *saddr;
}