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psample: Add a fwd declaration for skbuff

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[ Upstream commit beb7f2de5728b0bd2140a652fa51f6ad85d159f7 ]

Without this there is a warning if source files include psample.h
before skbuff.h or doesn't include it at all.

Fixes: 6ae0a62861 ("net: Introduce psample, a new genetlink channel for packet sampling")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Link: https://lore.kernel.org/r/20210808065242.1522535-1-roid@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Roi Dayan 2021-08-08 09:52:42 +03:00 committed by Greg Kroah-Hartman
parent 9dc8e396c1
commit f99aa76bb8
1 changed files with 2 additions and 0 deletions
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2
include/net/psample.h
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@ -18,6 +18,8 @@ struct psample_group *psample_group_get(struct net *net, u32 group_num);
void psample_group_take(struct psample_group *group);
void psample_group_put(struct psample_group *group);
struct sk_buff;
#if IS_ENABLED(CONFIG_PSAMPLE)
void psample_sample_packet(struct psample_group *group, struct sk_buff *skb,