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[SCSI] fix sdev_rw_attr macro for scsi device sysfs entries 

This patch fixes sdev_rw_attr() macro for scsi device sysfs entries.
It seems there is no such function snscanf in the current linux kernel,
so it fails to compile scsi driver when someone try to add a new rw entry.
This has been unfixed for a long time probably because current scsi device
has no rw entries.

# grep snscanf . -rn
./drivers/scsi/scsi_sysfs.c:489:        snscanf (buf, 20, format_string, &sdev->field);                 \

Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Tomohiro Kusumi 2010-04-14 15:15:14 +09:00 committed by James Bottomley
parent 8637ac3340
commit 160e7f6713
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/scsi_sysfs.c
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@ -474,7 +474,7 @@ static DEVICE_ATTR(field, S_IRUGO, sdev_show_##field, NULL);
/*
* sdev_rd_attr: create a function and attribute variable for a
* sdev_rw_attr: create a function and attribute variable for a
* read/write field.
*/
#define sdev_rw_attr(field, format_string) \
@ -486,7 +486,7 @@ sdev_store_##field (struct device *dev, struct device_attribute *attr, \
{ \
struct scsi_device *sdev; \
sdev = to_scsi_device(dev); \
snscanf (buf, 20, format_string, &sdev->field); \
sscanf (buf, format_string, &sdev->field); \
return count; \
} \
static DEVICE_ATTR(field, S_IRUGO | S_IWUSR, sdev_show_##field, sdev_store_##field);