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Message-Id: <20240814093853.48657-1-kunwu.chan@linux.dev>
Date: Wed, 14 Aug 2024 17:38:53 +0800
From: kunwu.chan@...ux.dev
To: trondmy@...nel.org,
	anna@...nel.org,
	chuck.lever@...cle.com,
	jlayton@...nel.org,
	neilb@...e.de,
	kolga@...app.com,
	Dai.Ngo@...cle.com,
	tom@...pey.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com
Cc: linux-nfs@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Kunwu Chan <chentao@...inos.cn>
Subject: [PATCH] SUNRPC: Fix -Wformat-truncation warning

From: Kunwu Chan <chentao@...inos.cn>

Increase size of the servername array to avoid truncated output warning.

net/sunrpc/clnt.c:582:75: error:‘%s’ directive output may be truncated
writing up to 107 bytes into a region of size 48
[-Werror=format-truncation=]
  582 |                   snprintf(servername, sizeof(servername), "%s",
      |                                                             ^~

net/sunrpc/clnt.c:582:33: note:‘snprintf’ output
between 1 and 108 bytes into a destination of size 48
  582 |                     snprintf(servername, sizeof(servername), "%s",
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  583 |                                          sun->sun_path);

Signed-off-by: Kunwu Chan <chentao@...inos.cn>
---
 net/sunrpc/clnt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 09f29a95f2bc..874085f3ed50 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -546,7 +546,7 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
 		.connect_timeout = args->connect_timeout,
 		.reconnect_timeout = args->reconnect_timeout,
 	};
-	char servername[48];
+	char servername[108];
 	struct rpc_clnt *clnt;
 	int i;
 
-- 
2.40.1


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