linux-kernel - [PATCH 07/30] net: Add missing annotation for llc_seq

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Message-Id: <20200223231711.157699-8-jbi.octave@gmail.com>
Date:   Sun, 23 Feb 2020 23:16:48 +0000
From:   Jules Irenge <jbi.octave@...il.com>
To:     boqun.feng@...il.com
Cc:     jbi.octave@...il.com, linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        netdev@...r.kernel.org (open list:LLC (802.2))
Subject: [PATCH 07/30] net: Add missing annotation for llc_seq_start()

Sparse reports a warning at llc_seq_start()

warning: context imbalance in llc_seq_start() - wrong count at exit
The root cause is the msiing annotation at llc_seq_start()

Add the missing __acquires(RCU) annotation

Signed-off-by: Jules Irenge <jbi.octave@...il.com>
---
 net/llc/llc_proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
index f3a36c16a5e7..a4eccb98220a 100644
--- a/net/llc/llc_proc.c
+++ b/net/llc/llc_proc.c
@@ -56,7 +56,7 @@ static struct sock *llc_get_sk_idx(loff_t pos)
 	return sk;
 }
 
-static void *llc_seq_start(struct seq_file *seq, loff_t *pos)
+static void *llc_seq_start(struct seq_file *seq, loff_t *pos) __acquires(RCU)
 {
 	loff_t l = *pos;
 
-- 
2.24.1