linux/fs/xfs/linux-2.6/xfs_message.h
Christoph Hellwig 957935dcd8 xfs: fix xfs_debug warnings
For a CONFIG_XFS_DEBUG=n build gcc complains about statements with no
effect in xfs_debug:

fs/xfs/quota/xfs_qm_syscalls.c: In function 'xfs_qm_scall_trunc_qfiles':
fs/xfs/quota/xfs_qm_syscalls.c:291:3: warning: statement with no effect

The reason for that is that the various new xfs message functions have a
return value which is never used, and in case of the non-debug build
xfs_debug the macro evaluates to a plain 0 which produces the above
warnings.  This can be fixed by turning xfs_debug into an inline function
instead of a macro, but in addition to that I've also changed all the
message helpers to return void as we never use their return values.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
2011-04-08 08:09:24 -05:00

40 lines
1.5 KiB
C

#ifndef __XFS_MESSAGE_H
#define __XFS_MESSAGE_H 1
struct xfs_mount;
extern void xfs_printk(const char *level, const struct xfs_mount *mp,
const char *fmt, ...)
__attribute__ ((format (printf, 3, 4)));
extern void xfs_emerg(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
extern void xfs_alert(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
extern void xfs_alert_tag(const struct xfs_mount *mp, int tag,
const char *fmt, ...)
__attribute__ ((format (printf, 3, 4)));
extern void xfs_crit(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
extern void xfs_err(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
extern void xfs_warn(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
extern void xfs_notice(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
extern void xfs_info(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
#ifdef DEBUG
extern void xfs_debug(const struct xfs_mount *mp, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
#else
static inline void xfs_debug(const struct xfs_mount *mp, const char *fmt, ...)
{
}
#endif
extern void assfail(char *expr, char *f, int l);
extern void xfs_hex_dump(void *p, int length);
#endif /* __XFS_MESSAGE_H */