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@xxxxxxxxx> CC: Sesidhar Baddela <sebaddel@xxxxxxxxx> CC: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxx> CC: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx> CC: linux-scsi@xxxxxxxxxxxxxxx Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx> --- 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@xxxxxxxxxxx/ --- 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
