linux-kernel - [PATCH 5.4 25/62] psample: Add a fwd declaration for skbuff

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Date:   Mon, 16 Aug 2021 15:01:57 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Roi Dayan <roid@...dia.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 25/62] psample: Add a fwd declaration for skbuff

From: Roi Dayan <roid@...dia.com>

[ 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: 6ae0a6286171 ("net: Introduce psample, a new genetlink channel for packet sampling")
Signed-off-by: Roi Dayan <roid@...dia.com>
Link: https://lore.kernel.org/r/20210808065242.1522535-1-roid@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 include/net/psample.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/net/psample.h b/include/net/psample.h
index 68ae16bb0a4a..20a17551f790 100644
--- a/include/net/psample.h
+++ b/include/net/psample.h
@@ -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,
-- 
2.30.2