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scsi: introduce sdev_prefix_printk()

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Like scmd_printk(), but the device name is passed in as
a string. Can be used by eg ULDs which do not have access
to the scsi_cmnd structure.

Signed-off-by: Hannes Reinecke <[email protected]>
Reviewed-by: Robert Elliott <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
This commit is contained in:
Hannes Reinecke 2014-10-24 14:26:44 +02:00 • committed by Christoph Hellwig
commit 22e0d99415
6 changed files with 17 additions and 11 deletions
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9
include/scsi/scsi_device.h
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@ -244,6 +244,15 @@ struct scsi_dh_data {
#define sdev_dbg(sdev, fmt, a...) \
dev_dbg(&(sdev)->sdev_gendev, fmt, ##a)
/*
* like scmd_printk, but the device name is passed in
* as a string pointer
*/
#define sdev_prefix_printk(l, sdev, p, fmt, a...) \
(p) ? \
sdev_printk(l, sdev, "[%s] " fmt, p, ##a) : \
sdev_printk(l, sdev, fmt, ##a)
#define scmd_printk(prefix, scmd, fmt, a...) \
(scmd)->request->rq_disk ? \
sdev_printk(prefix, (scmd)->device, "[%s] " fmt, \