Re: Fwd: [PATCH] scsi: be2iscsi: wacom: convert sysfs sprintf/snprintf family to sysfs_emit

From: Chris Leech
Date: Wed Jul 19 2023 - 14:06:42 EST


On Fri, Jul 14, 2023 at 04:10:43PM +0800, hanyu001@xxxxxxxxxx wrote:
> Fix the following coccicheck warning:
>
> ./drivers/hid/wacom_sys.c:1828:8-16: WARNING: use scnprintf or sprintf.
>
> ./drivers/scsi/be2iscsi/be_mgmt.c:1251:9-17: WARNING: use scnprintf or
> sprintf
> ./drivers/scsi/be2iscsi/be_mgmt.c:1145:8-16: WARNING: use scnprintf or
> sprintf
> ./drivers/scsi/be2iscsi/be_mgmt.c:1164:8-16: WARNING: use scnprintf or
> sprintf
> ./drivers/scsi/be2iscsi/be_mgmt.c:1280:8-16: WARNING: use scnprintf or
> sprintf
>
> Signed-off-by: ztt <1549089851@xxxxxx>
> ---
> drivers/scsi/be2iscsi/be_mgmt.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)

The changes here to scnprintf don't match the subject, which mentions
sysfs_emit. It would be better to convert to sysfs_emit.

- Chris Leech

>
> diff --git a/drivers/scsi/be2iscsi/be_mgmt.c
> b/drivers/scsi/be2iscsi/be_mgmt.c
> index 4e899ec1477d..4916ce9c36a6 100644
> --- a/drivers/scsi/be2iscsi/be_mgmt.c
> +++ b/drivers/scsi/be2iscsi/be_mgmt.c
> @@ -1142,7 +1142,7 @@ ssize_t
> beiscsi_drvr_ver_disp(struct device *dev, struct device_attribute *attr,
> char *buf)
> {
> - return snprintf(buf, PAGE_SIZE, BE_NAME "\n");
> + return scnprintf(buf, PAGE_SIZE, BE_NAME "\n");
> }
>
> /**
> @@ -1161,7 +1161,7 @@ beiscsi_fw_ver_disp(struct device *dev, struct
> device_attribute *attr,
> struct Scsi_Host *shost = class_to_shost(dev);
> struct beiscsi_hba *phba = iscsi_host_priv(shost);
>
> - return snprintf(buf, PAGE_SIZE, "%s\n", phba->fw_ver_str);
> + return scnprintf(buf, PAGE_SIZE, "%s\n", phba->fw_ver_str);
> }
>
> /**
> @@ -1248,7 +1248,7 @@ beiscsi_adap_family_disp(struct device *dev, struct
> device_attribute *attr,
> case BE_DEVICE_ID1:
> case OC_DEVICE_ID1:
> case OC_DEVICE_ID2:
> - return snprintf(buf, PAGE_SIZE,
> + return scnprintf(buf, PAGE_SIZE,
> "Obsolete/Unsupported BE2 Adapter Family\n");
> case BE_DEVICE_ID2:
> case OC_DEVICE_ID3:
> @@ -1277,7 +1277,7 @@ beiscsi_phys_port_disp(struct device *dev, struct
> device_attribute *attr,
> struct Scsi_Host *shost = class_to_shost(dev);
> struct beiscsi_hba *phba = iscsi_host_priv(shost);
>
> - return snprintf(buf, PAGE_SIZE, "Port Identifier : %u\n",
> + return scnprintf(buf, PAGE_SIZE, "Port Identifier : %u\n",
> phba->fw_config.phys_port);
> }