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| author | Borislav Petkov <petkovbb@googlemail.com> | 2008-10-13 21:39:35 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-10-13 21:39:35 +0200 |
| commit | e1c7c4641aae8d278fca62b3b5cffad3a8dcb0a4 (patch) | |
| tree | 5fee46f00db24a3ca301dca5fb2d3baddfdd2938 /include/linux/ide.h | |
| parent | b22b2ca4ff0730b14d14bcc36bd1b84873557512 (diff) | |
| download | lwn-e1c7c4641aae8d278fca62b3b5cffad3a8dcb0a4.tar.gz lwn-e1c7c4641aae8d278fca62b3b5cffad3a8dcb0a4.zip | |
ide: add a driver-wide debugging macro
Add __ide_debug_log() debugging macro which is controlled by drive->debug_mask.
The macro has to have the macro DRV_NAME defined in each driver before use.
Also, add different debugging levels depending on the functionality debugged.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include/linux/ide.h')
| -rw-r--r-- | include/linux/ide.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index fcd98e1d1863..02c4c642e6a5 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -927,6 +927,26 @@ static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t * #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0; #endif +enum { + /* enter/exit functions */ + IDE_DBG_FUNC = (1 << 0), + /* sense key/asc handling */ + IDE_DBG_SENSE = (1 << 1), + /* packet commands handling */ + IDE_DBG_PC = (1 << 2), + /* request handling */ + IDE_DBG_RQ = (1 << 3), + /* driver probing/setup */ + IDE_DBG_PROBE = (1 << 4), +}; + +/* DRV_NAME has to be defined in the driver before using the macro below */ +#define __ide_debug_log(lvl, fmt, args...) \ +{ \ + if (unlikely(drive->debug_mask & lvl)) \ + printk(KERN_INFO DRV_NAME ": " fmt, ## args); \ +} + /* * Power Management step value (rq->pm->pm_step). * |