These functions always return '0' and no callers use the return value.
So make it a void function.

This eliminates the following coccicheck warning:
./fs/jfs/jfs_txnmgr.c:1365:5-7: Unneeded variable: "rc". Return "0" on
line 1414
./fs/jfs/jfs_txnmgr.c:1422:5-7: Unneeded variable: "rc". Return "0" on
line 1527

Reported-by: Abaci Robot <ab...@linux.alibaba.com>
Signed-off-by: Yang Li <yang....@linux.alibaba.com>
---

Changes in v2
-turn functions forward references to void type.

 fs/jfs/jfs_txnmgr.c | 32 +++++++++++++++-----------------
 1 file changed, 15 insertions(+), 17 deletions(-)

diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index dca8edd..5f54a4c 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -148,10 +148,10 @@ static inline void TXN_SLEEP_DROP_LOCK(wait_queue_head_t 
* event)
 /*
  * forward references
  */
-static int diLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
-               struct tlock * tlck, struct commit * cd);
-static int dataLog(struct jfs_log * log, struct tblock * tblk, struct lrd * 
lrd,
-               struct tlock * tlck);
+static void diLog(struct jfs_log *log, struct tblock *tblk, struct lrd *lrd,
+               struct tlock *tlck, struct commit *cd);
+static void dataLog(struct jfs_log *log, struct tblock *tblk, struct lrd *lrd,
+               struct tlock *tlck);
 static void dtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
                struct tlock * tlck);
 static void mapLog(struct jfs_log * log, struct tblock * tblk, struct lrd * 
lrd,
@@ -159,8 +159,8 @@ static void mapLog(struct jfs_log * log, struct tblock * 
tblk, struct lrd * lrd,
 static void txAllocPMap(struct inode *ip, struct maplock * maplock,
                struct tblock * tblk);
 static void txForce(struct tblock * tblk);
-static int txLog(struct jfs_log * log, struct tblock * tblk,
-               struct commit * cd);
+static void txLog(struct jfs_log *log, struct tblock *tblk,
+               struct commit *cd);
 static void txUpdateMap(struct tblock * tblk);
 static void txRelease(struct tblock * tblk);
 static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
@@ -1365,9 +1365,8 @@ int txCommit(tid_t tid,           /* transaction 
identifier */
  *
  * RETURN :
  */
-static int txLog(struct jfs_log * log, struct tblock * tblk, struct commit * 
cd)
+static void txLog(struct jfs_log *log, struct tblock *tblk, struct commit *cd)
 {
-       int rc = 0;
        struct inode *ip;
        lid_t lid;
        struct tlock *tlck;
@@ -1414,7 +1413,7 @@ static int txLog(struct jfs_log * log, struct tblock * 
tblk, struct commit * cd)
                }
        }
 
-       return rc;
+       return;
 }
 
 /*
@@ -1422,10 +1421,9 @@ static int txLog(struct jfs_log * log, struct tblock * 
tblk, struct commit * cd)
  *
  * function:   log inode tlock and format maplock to update bmap;
  */
-static int diLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
-                struct tlock * tlck, struct commit * cd)
+static void diLog(struct jfs_log *log, struct tblock *tblk, struct lrd *lrd,
+                struct tlock *tlck, struct commit *cd)
 {
-       int rc = 0;
        struct metapage *mp;
        pxd_t *pxd;
        struct pxd_lock *pxdlock;
@@ -1527,7 +1525,7 @@ static int diLog(struct jfs_log * log, struct tblock * 
tblk, struct lrd * lrd,
        }
 #endif                         /* _JFS_WIP */
 
-       return rc;
+       return;
 }
 
 /*
@@ -1535,8 +1533,8 @@ static int diLog(struct jfs_log * log, struct tblock * 
tblk, struct lrd * lrd,
  *
  * function:   log data tlock
  */
-static int dataLog(struct jfs_log * log, struct tblock * tblk, struct lrd * 
lrd,
-           struct tlock * tlck)
+static void dataLog(struct jfs_log *log, struct tblock *tblk, struct lrd *lrd,
+           struct tlock *tlck)
 {
        struct metapage *mp;
        pxd_t *pxd;
@@ -1562,7 +1560,7 @@ static int dataLog(struct jfs_log * log, struct tblock * 
tblk, struct lrd * lrd,
                metapage_homeok(mp);
                discard_metapage(mp);
                tlck->mp = NULL;
-               return 0;
+               return;
        }
 
        PXDaddress(pxd, mp->index);
@@ -1573,7 +1571,7 @@ static int dataLog(struct jfs_log * log, struct tblock * 
tblk, struct lrd * lrd,
        /* mark page as homeward bound */
        tlck->flag |= tlckWRITEPAGE;
 
-       return 0;
+       return;
 }
 
 /*
-- 
1.8.3.1

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