linux-kernel - [PATCH 1/1] RDS: add __printf format attribute to error reporting functions

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Message-Id: <20160805201112.30892-1-nicolas.iooss_linux@m4x.org>
Date:	Fri,  5 Aug 2016 22:11:12 +0200
From:	Nicolas Iooss <nicolas.iooss_linux@....org>
To:	Santosh Shilimkar <santosh.shilimkar@...cle.com>,
	"David S. Miller" <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Nicolas Iooss <nicolas.iooss_linux@....org>
Subject: [PATCH 1/1] RDS: add __printf format attribute to error reporting functions

This is helpful to detect at compile-time errors related to format
strings.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@....org>
---
 net/rds/ib.h  | 1 +
 net/rds/rds.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/net/rds/ib.h b/net/rds/ib.h
index 046f7508c06b..45ac8e8e58f4 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -333,6 +333,7 @@ void rds_ib_conn_path_shutdown(struct rds_conn_path *cp);
 void rds_ib_state_change(struct sock *sk);
 int rds_ib_listen_init(void);
 void rds_ib_listen_stop(void);
+__printf(2, 3)
 void __rds_ib_conn_error(struct rds_connection *conn, const char *, ...);
 int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id,
 			     struct rdma_cm_event *event);
diff --git a/net/rds/rds.h b/net/rds/rds.h
index b2d17f0fafa8..fd0bccb2f9f9 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -688,6 +688,7 @@ void __rds_conn_error(struct rds_connection *conn, const char *, ...);
 #define rds_conn_error(conn, fmt...) \
 	__rds_conn_error(conn, KERN_WARNING "RDS: " fmt)
 
+__printf(2, 3)
 void __rds_conn_path_error(struct rds_conn_path *cp, const char *, ...);
 #define rds_conn_path_error(cp, fmt...) \
 	__rds_conn_path_error(cp, KERN_WARNING "RDS: " fmt)
-- 
2.9.2