On Monday, March 18, 2024 11:31 PM, Li Zhijian <lizhijian@xxxxxxxxxxx> wrote: > > 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 > > Reviewed-by: Karan Tilak Kumar <kartilak@xxxxxxxxx> Regards, Karan
