From ddeaa6379d50a530f9f57b3d12f7940e079b052c Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 15 Oct 2016 13:59:03 -0700
Subject: sunrpc & nfs: Add and use dprintk_cont macros

Allow line continuations to work properly with KERN_CONT.

Signed-off-by: Joe Perches <joe@perches.com>
[Anna: Add fallback dprintk_cont() for when CONFIG_SUNRPC_DEBUG=n]
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---
 include/linux/sunrpc/debug.h | 58 ++++++++++++++++++++++++++++++--------------
 1 file changed, 40 insertions(+), 18 deletions(-)

(limited to 'include/linux/sunrpc/debug.h')

diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index 59a7889e15db..8da0f37f3bdc 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -20,33 +20,55 @@ extern unsigned int		nfsd_debug;
 extern unsigned int		nlm_debug;
 #endif
 
-#define dprintk(args...)	dfprintk(FACILITY, ## args)
-#define dprintk_rcu(args...)	dfprintk_rcu(FACILITY, ## args)
+#define dprintk(fmt, ...)						\
+	dfprintk(FACILITY, fmt, ##__VA_ARGS__)
+#define dprintk_cont(fmt, ...)						\
+	dfprintk_cont(FACILITY, fmt, ##__VA_ARGS__)
+#define dprintk_rcu(fmt, ...)						\
+	dfprintk_rcu(FACILITY, fmt, ##__VA_ARGS__)
+#define dprintk_rcu_cont(fmt, ...)					\
+	dfprintk_rcu_cont(FACILITY, fmt, ##__VA_ARGS__)
 
 #undef ifdebug
 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
 # define ifdebug(fac)		if (unlikely(rpc_debug & RPCDBG_##fac))
 
-# define dfprintk(fac, args...)	\
-	do { \
-		ifdebug(fac) \
-			printk(KERN_DEFAULT args); \
-	} while (0)
-
-# define dfprintk_rcu(fac, args...)	\
-	do { \
-		ifdebug(fac) { \
-			rcu_read_lock(); \
-			printk(KERN_DEFAULT args); \
-			rcu_read_unlock(); \
-		} \
-	} while (0)
+# define dfprintk(fac, fmt, ...)					\
+do {									\
+	ifdebug(fac)							\
+		printk(KERN_DEFAULT fmt, ##__VA_ARGS__);		\
+} while (0)
+
+# define dfprintk_cont(fac, fmt, ...)					\
+do {									\
+	ifdebug(fac)							\
+		printk(KERN_CONT fmt, ##__VA_ARGS__);			\
+} while (0)
+
+# define dfprintk_rcu(fac, fmt, ...)					\
+do {									\
+	ifdebug(fac) {							\
+		rcu_read_lock();					\
+		printk(KERN_DEFAULT fmt, ##__VA_ARGS__);		\
+		rcu_read_unlock();					\
+	}								\
+} while (0)
+
+# define dfprintk_rcu_cont(fac, fmt, ...)				\
+do {									\
+	ifdebug(fac) {							\
+		rcu_read_lock();					\
+		printk(KERN_CONT fmt, ##__VA_ARGS__);			\
+		rcu_read_unlock();					\
+	}								\
+} while (0)
 
 # define RPC_IFDEBUG(x)		x
 #else
 # define ifdebug(fac)		if (0)
-# define dfprintk(fac, args...)	do {} while (0)
-# define dfprintk_rcu(fac, args...)	do {} while (0)
+# define dfprintk(fac, fmt, ...)	do {} while (0)
+# define dfprintk_cont(fac, fmt, ...)	do {} while (0)
+# define dfprintk_rcu(fac, fmt, ...)	do {} while (0)
 # define RPC_IFDEBUG(x)
 #endif
 
-- 
cgit