On 9/1/22 10:51, Xuezhi Zhang wrote:
> From: Xuezhi Zhang <zhangxuezhi1@xxxxxxxxxxx>
>
> Follow the advice of the Documentation/filesystems/sysfs.rst
> and show() should only use sysfs_emit() or sysfs_emit_at()
> when formatting the value to be returned to user space.
>
> Signed-off-by: Xuezhi Zhang <zhangxuezhi1@xxxxxxxxxxx>
Looks OK.
Reviewed-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>
> ---
> v2: delete 'else' and extra space.
> v3: delete extra configs in patch v2
> and use a new changelog.
> ---
> drivers/scsi/csiostor/csio_scsi.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c
> index 9aafe0002ab1..05e1a63e00c3 100644
> --- a/drivers/scsi/csiostor/csio_scsi.c
> +++ b/drivers/scsi/csiostor/csio_scsi.c
> @@ -1366,9 +1366,9 @@ csio_show_hw_state(struct device *dev,
> struct csio_hw *hw = csio_lnode_to_hw(ln);
>
> if (csio_is_hw_ready(hw))
> - return snprintf(buf, PAGE_SIZE, "ready\n");
> - else
> - return snprintf(buf, PAGE_SIZE, "not ready\n");
> + return sysfs_emit(buf, "ready\n");
> +
> + return sysfs_emit(buf, "not ready\n");
> }
>
> /* Device reset */
> @@ -1430,7 +1430,7 @@ csio_show_dbg_level(struct device *dev,
> {
> struct csio_lnode *ln = shost_priv(class_to_shost(dev));
>
> - return snprintf(buf, PAGE_SIZE, "%x\n", ln->params.log_level);
> + return sysfs_emit(buf, "%x\n", ln->params.log_level);
> }
>
> /* Store debug level */
> @@ -1476,7 +1476,7 @@ csio_show_num_reg_rnodes(struct device *dev,
> {
> struct csio_lnode *ln = shost_priv(class_to_shost(dev));
>
> - return snprintf(buf, PAGE_SIZE, "%d\n", ln->num_reg_rnodes);
> + return sysfs_emit(buf, "%d\n", ln->num_reg_rnodes);
> }
>
> static DEVICE_ATTR(num_reg_rnodes, S_IRUGO, csio_show_num_reg_rnodes, NULL);
--
Damien Le Moal
Western Digital Research
