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| author | Willem de Bruijn <willemb@google.com> | 2019-03-23 19:23:07 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-03-25 01:31:57 +0300 |
| commit | 62b31b42cff924c7d1e9a095b68ff3bbfc49b15b (patch) | |
| tree | 1db3163ba2f023f753054bd45f4976aae57eba8c /net/core | |
| parent | 7df5e3db8f6354125540dfa50affd2c02b7d2832 (diff) | |
| download | linux-62b31b42cff924c7d1e9a095b68ff3bbfc49b15b.tar.xz | |
bpf: silence uninitialized var warning in bpf_skb_net_grow
These three variables are set in one branch and used in another with
the same condition. But on some architectures they still generate
compiler warnings of the kind:
warning: 'inner_trans' may be used uninitialized in this function [-Wmaybe-uninitialized]
Silence these false positives. Use the straightforward approach to
always initialize them, if a bit superfluous.
Fixes: 868d523535c2 ("bpf: add bpf_skb_adjust_room encap flags")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/filter.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index 0a972fbf60df..22eb2edf5573 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2975,8 +2975,8 @@ static int bpf_skb_net_grow(struct sk_buff *skb, u32 off, u32 len_diff, u64 flags) { bool encap = flags & BPF_F_ADJ_ROOM_ENCAP_L3_MASK; + u16 mac_len = 0, inner_net = 0, inner_trans = 0; unsigned int gso_type = SKB_GSO_DODGY; - u16 mac_len, inner_net, inner_trans; int ret; if (skb_is_gso(skb) && !skb_is_gso_tcp(skb)) { |