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Subject[PATCH v2 12/25] scsi: snic: Convert sprintf() family to sysfs_emit() family
Date
Per filesystems/sysfs.rst, show() should only use sysfs_emit()
or sysfs_emit_at() when formatting the value to be returned to user space.

coccinelle complains that there are still a couple of functions that use
snprintf(). Convert them to sysfs_emit().

sprintf() and scnprintf() will be converted as well if they have.

Generally, this patch is generated by
make coccicheck M=<path/to/file> MODE=patch \
COCCI=scripts/coccinelle/api/device_attr_show.cocci

No functional change intended

CC: Karan Tilak Kumar <kartilak@cisco.com>
CC: Sesidhar Baddela <sebaddel@cisco.com>
CC: "James E.J. Bottomley" <jejb@linux.ibm.com>
CC: "Martin K. Petersen" <martin.petersen@oracle.com>
CC: linux-scsi@vger.kernel.org
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
---
This is a part of the work "Fix coccicheck device_attr_show warnings"[1]
Split them per subsystem so that the maintainer can review it easily
[1] https://lore.kernel.org/lkml/20240116041129.3937800-1-lizhijian@fujitsu.com/
---
drivers/scsi/snic/snic_attrs.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/snic/snic_attrs.c b/drivers/scsi/snic/snic_attrs.c
index 3ddbdbc3ded1..48bf82d042b4 100644
--- a/drivers/scsi/snic/snic_attrs.c
+++ b/drivers/scsi/snic/snic_attrs.c
@@ -13,7 +13,7 @@ snic_show_sym_name(struct device *dev,
{
struct snic *snic = shost_priv(class_to_shost(dev));

- return snprintf(buf, PAGE_SIZE, "%s\n", snic->name);
+ return sysfs_emit(buf, "%s\n", snic->name);
}

static ssize_t
@@ -23,8 +23,7 @@ snic_show_state(struct device *dev,
{
struct snic *snic = shost_priv(class_to_shost(dev));

- return snprintf(buf, PAGE_SIZE, "%s\n",
- snic_state_str[snic_get_state(snic)]);
+ return sysfs_emit(buf, "%s\n", snic_state_str[snic_get_state(snic)]);
}

static ssize_t
@@ -32,7 +31,7 @@ snic_show_drv_version(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%s\n", SNIC_DRV_VERSION);
+ return sysfs_emit(buf, "%s\n", SNIC_DRV_VERSION);
}

static ssize_t
@@ -45,8 +44,8 @@ snic_show_link_state(struct device *dev,
if (snic->config.xpt_type == SNIC_DAS)
snic->link_status = svnic_dev_link_status(snic->vdev);

- return snprintf(buf, PAGE_SIZE, "%s\n",
- (snic->link_status) ? "Link Up" : "Link Down");
+ return sysfs_emit(buf, "%s\n",
+ (snic->link_status) ? "Link Up" : "Link Down");
}

static DEVICE_ATTR(snic_sym_name, S_IRUGO, snic_show_sym_name, NULL);
--
2.29.2

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