xfs: remove pointless externs in xfs_error.h

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

Author: Christoph Hellwig

fs/xfs/xfs_error.h

@@ -8,22 +8,17 @@
 
 struct xfs_mount;
 
-extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
-			const char *filename, int linenum,
-			xfs_failaddr_t failaddr);
-extern void xfs_corruption_error(const char *tag, int level,
-			struct xfs_mount *mp, const void *buf, size_t bufsize,
-			const char *filename, int linenum,
-			xfs_failaddr_t failaddr);
+void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
+		const char *filename, int linenum, xfs_failaddr_t failaddr);
+void xfs_corruption_error(const char *tag, int level, struct xfs_mount *mp,
+		const void *buf, size_t bufsize, const char *filename,
+		int linenum, xfs_failaddr_t failaddr);
 void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa);
-extern void xfs_buf_verifier_error(struct xfs_buf *bp, int error,
-			const char *name, const void *buf, size_t bufsz,
-			xfs_failaddr_t failaddr);
-extern void xfs_verifier_error(struct xfs_buf *bp, int error,
-			xfs_failaddr_t failaddr);
-extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error,
-			const char *name, const void *buf, size_t bufsz,
-			xfs_failaddr_t failaddr);
+void xfs_buf_verifier_error(struct xfs_buf *bp, int error, const char *name,
+		const void *buf, size_t bufsz, xfs_failaddr_t failaddr);
+void xfs_verifier_error(struct xfs_buf *bp, int error, xfs_failaddr_t failaddr);
+void xfs_inode_verifier_error(struct xfs_inode *ip, int error, const char *name,
+		const void *buf, size_t bufsz, xfs_failaddr_t failaddr);
 
 #define	XFS_ERROR_REPORT(e, lvl, mp)	\
 	xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
@@ -39,8 +34,8 @@ extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error,
 #define XFS_CORRUPTION_DUMP_LEN		(128)
 
 #ifdef DEBUG
-extern int xfs_errortag_init(struct xfs_mount *mp);
-extern void xfs_errortag_del(struct xfs_mount *mp);
+int xfs_errortag_init(struct xfs_mount *mp);
+void xfs_errortag_del(struct xfs_mount *mp);
 bool xfs_errortag_test(struct xfs_mount *mp, const char *file, int line,
 		unsigned int error_tag);
 #define XFS_TEST_ERROR(mp, tag)		\
@@ -58,8 +53,8 @@ bool xfs_errortag_enabled(struct xfs_mount *mp, unsigned int tag);
 		mdelay((mp)->m_errortag[(tag)]); \
 	} while (0)
 
-extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
-extern int xfs_errortag_clearall(struct xfs_mount *mp);
+int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
+int xfs_errortag_clearall(struct xfs_mount *mp);
 #else
 #define xfs_errortag_init(mp)			(0)
 #define xfs_errortag_del(mp)