[PATCH 3.19 164/177] nfsd: eliminate NFSD_DEBUG

[Greg Kroah-Hartman]

3.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mark Salter <msalter@xxxxxxxxxx>

commit 135dd002c23054aaa056ea3162c1e0356905c195 upstream.

Commit f895b252d4edf ("sunrpc: eliminate RPC_DEBUG") introduced
use of IS_ENABLED() in a uapi header which leads to a build
failure for userspace apps trying to use <linux/nfsd/debug.h>:

   linux/nfsd/debug.h:18:15: error: missing binary operator before token "("
  #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
                ^

Since this was only used to define NFSD_DEBUG if CONFIG_SUNRPC_DEBUG
is enabled, replace instances of NFSD_DEBUG with CONFIG_SUNRPC_DEBUG.

Fixes: f895b252d4edf "sunrpc: eliminate RPC_DEBUG"
Signed-off-by: Mark Salter <msalter@xxxxxxxxxx>
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 fs/lockd/svcsubs.c              |    2 +-
 fs/nfsd/nfs4state.c             |    2 +-
 fs/nfsd/nfsd.h                  |    2 +-
 include/uapi/linux/nfsd/debug.h |    8 --------
 4 files changed, 3 insertions(+), 11 deletions(-)

--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -31,7 +31,7 @@
 static struct hlist_head	nlm_files[FILE_NRHASH];
 static DEFINE_MUTEX(nlm_file_mutex);
 
-#ifdef NFSD_DEBUG
+#ifdef CONFIG_SUNRPC_DEBUG
 static inline void nlm_debug_print_fh(char *msg, struct nfs_fh *f)
 {
 	u32 *fhp = (u32*)f->data;
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1162,7 +1162,7 @@ hash_sessionid(struct nfs4_sessionid *se
 	return sid->sequence % SESSION_HASH_SIZE;
 }
 
-#ifdef NFSD_DEBUG
+#ifdef CONFIG_SUNRPC_DEBUG
 static inline void
 dump_sessionid(const char *fn, struct nfs4_sessionid *sessionid)
 {
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -24,7 +24,7 @@
 #include "export.h"
 
 #undef ifdebug
-#ifdef NFSD_DEBUG
+#ifdef CONFIG_SUNRPC_DEBUG
 # define ifdebug(flag)		if (nfsd_debug & NFSDDBG_##flag)
 #else
 # define ifdebug(flag)		if (0)
--- a/include/uapi/linux/nfsd/debug.h
+++ b/include/uapi/linux/nfsd/debug.h
@@ -12,14 +12,6 @@
 #include <linux/sunrpc/debug.h>
 
 /*
- * Enable debugging for nfsd.
- * Requires RPC_DEBUG.
- */
-#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
-# define NFSD_DEBUG		1
-#endif
-
-/*
  * knfsd debug flags
  */
 #define NFSDDBG_SOCK		0x0001


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