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Message-Id: <20240116045151.3940401-29-lizhijian@fujitsu.com>
Date: Tue, 16 Jan 2024 12:51:40 +0800
From: Li Zhijian <lizhijian@...itsu.com>
To: linux-kernel@...r.kernel.org
Cc: Li Zhijian <lizhijian@...itsu.com>,
Hannes Reinecke <hare@...nel.org>,
"James E.J. Bottomley" <jejb@...ux.ibm.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
linux-scsi@...r.kernel.org
Subject: [PATCH 31/42] drivers/scsi/myrs: Convert snprintf to sysfs_emit
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().
> ./drivers/scsi/myrs.c:1061:9-17: WARNING: please use sysfs_emit
> ./drivers/scsi/myrs.c:1089:9-17: WARNING: please use sysfs_emit
> ./drivers/scsi/myrs.c:1193:9-17: WARNING: please use sysfs_emit
> ./drivers/scsi/myrs.c:1306:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/myrs.c:1316:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/myrs.c:1391:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/myrs.c:1401:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/myrs.c:1411:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/myrs.c:1421:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/myrs.c:1491:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/myrs.c:942:9-17: WARNING: please use sysfs_emit
No functional change intended
CC: Hannes Reinecke <hare@...nel.org>
CC: "James E.J. Bottomley" <jejb@...ux.ibm.com>
CC: "Martin K. Petersen" <martin.petersen@...cle.com>
CC: linux-scsi@...r.kernel.org
Signed-off-by: Li Zhijian <lizhijian@...itsu.com>
---
drivers/scsi/myrs.c | 56 ++++++++++++++++++++++-----------------------
1 file changed, 28 insertions(+), 28 deletions(-)
diff --git a/drivers/scsi/myrs.c b/drivers/scsi/myrs.c
index a1eec65a9713..deafe5904055 100644
--- a/drivers/scsi/myrs.c
+++ b/drivers/scsi/myrs.c
@@ -939,7 +939,7 @@ static ssize_t raid_state_show(struct device *dev,
int ret;
if (!sdev->hostdata)
- return snprintf(buf, 16, "Unknown\n");
+ return sysfs_emit(buf, "Unknown\n");
if (sdev->channel >= cs->ctlr_info->physchan_present) {
struct myrs_ldev_info *ldev_info = sdev->hostdata;
@@ -947,10 +947,10 @@ static ssize_t raid_state_show(struct device *dev,
name = myrs_devstate_name(ldev_info->dev_state);
if (name)
- ret = snprintf(buf, 32, "%s\n", name);
+ ret = sysfs_emit(buf, "%s\n", name);
else
- ret = snprintf(buf, 32, "Invalid (%02X)\n",
- ldev_info->dev_state);
+ ret = sysfs_emit(buf, "Invalid (%02X)\n",
+ ldev_info->dev_state);
} else {
struct myrs_pdev_info *pdev_info;
const char *name;
@@ -958,10 +958,10 @@ static ssize_t raid_state_show(struct device *dev,
pdev_info = sdev->hostdata;
name = myrs_devstate_name(pdev_info->dev_state);
if (name)
- ret = snprintf(buf, 32, "%s\n", name);
+ ret = sysfs_emit(buf, "%s\n", name);
else
- ret = snprintf(buf, 32, "Invalid (%02X)\n",
- pdev_info->dev_state);
+ ret = sysfs_emit(buf, "Invalid (%02X)\n",
+ pdev_info->dev_state);
}
return ret;
}
@@ -1058,7 +1058,7 @@ static ssize_t raid_level_show(struct device *dev,
const char *name = NULL;
if (!sdev->hostdata)
- return snprintf(buf, 16, "Unknown\n");
+ return sysfs_emit(buf, "Unknown\n");
if (sdev->channel >= cs->ctlr_info->physchan_present) {
struct myrs_ldev_info *ldev_info;
@@ -1066,13 +1066,13 @@ static ssize_t raid_level_show(struct device *dev,
ldev_info = sdev->hostdata;
name = myrs_raid_level_name(ldev_info->raid_level);
if (!name)
- return snprintf(buf, 32, "Invalid (%02X)\n",
+ return sysfs_emit(buf, "Invalid (%02X)\n",
ldev_info->dev_state);
} else
name = myrs_raid_level_name(MYRS_RAID_PHYSICAL);
- return snprintf(buf, 32, "%s\n", name);
+ return sysfs_emit(buf, "%s\n", name);
}
static DEVICE_ATTR_RO(raid_level);
@@ -1086,7 +1086,7 @@ static ssize_t rebuild_show(struct device *dev,
unsigned char status;
if (sdev->channel < cs->ctlr_info->physchan_present)
- return snprintf(buf, 32, "physical device - not rebuilding\n");
+ return sysfs_emit(buf, "physical device - not rebuilding\n");
ldev_info = sdev->hostdata;
ldev_num = ldev_info->ldev_num;
@@ -1098,11 +1098,11 @@ static ssize_t rebuild_show(struct device *dev,
return -EIO;
}
if (ldev_info->rbld_active) {
- return snprintf(buf, 32, "rebuilding block %zu of %zu\n",
+ return sysfs_emit(buf, "rebuilding block %zu of %zu\n",
(size_t)ldev_info->rbld_lba,
(size_t)ldev_info->cfg_devsize);
} else
- return snprintf(buf, 32, "not rebuilding\n");
+ return sysfs_emit(buf, "not rebuilding\n");
}
static ssize_t rebuild_store(struct device *dev,
@@ -1190,7 +1190,7 @@ static ssize_t consistency_check_show(struct device *dev,
unsigned short ldev_num;
if (sdev->channel < cs->ctlr_info->physchan_present)
- return snprintf(buf, 32, "physical device - not checking\n");
+ return sysfs_emit(buf, "physical device - not checking\n");
ldev_info = sdev->hostdata;
if (!ldev_info)
@@ -1198,11 +1198,11 @@ static ssize_t consistency_check_show(struct device *dev,
ldev_num = ldev_info->ldev_num;
myrs_get_ldev_info(cs, ldev_num, ldev_info);
if (ldev_info->cc_active)
- return snprintf(buf, 32, "checking block %zu of %zu\n",
- (size_t)ldev_info->cc_lba,
- (size_t)ldev_info->cfg_devsize);
+ return sysfs_emit(buf, "checking block %zu of %zu\n",
+ (size_t)ldev_info->cc_lba,
+ (size_t)ldev_info->cfg_devsize);
else
- return snprintf(buf, 32, "not checking\n");
+ return sysfs_emit(buf, "not checking\n");
}
static ssize_t consistency_check_store(struct device *dev,
@@ -1303,7 +1303,7 @@ static ssize_t serial_show(struct device *dev,
memcpy(serial, cs->ctlr_info->serial_number, 16);
serial[16] = '\0';
- return snprintf(buf, 16, "%s\n", serial);
+ return sysfs_emit(buf, "%s\n", serial);
}
static DEVICE_ATTR_RO(serial);
@@ -1313,7 +1313,7 @@ static ssize_t ctlr_num_show(struct device *dev,
struct Scsi_Host *shost = class_to_shost(dev);
struct myrs_hba *cs = shost_priv(shost);
- return snprintf(buf, 20, "%d\n", cs->host->host_no);
+ return sysfs_emit(buf, "%d\n", cs->host->host_no);
}
static DEVICE_ATTR_RO(ctlr_num);
@@ -1388,7 +1388,7 @@ static ssize_t model_show(struct device *dev,
struct Scsi_Host *shost = class_to_shost(dev);
struct myrs_hba *cs = shost_priv(shost);
- return snprintf(buf, 28, "%s\n", cs->model_name);
+ return sysfs_emit(buf, "%s\n", cs->model_name);
}
static DEVICE_ATTR_RO(model);
@@ -1398,7 +1398,7 @@ static ssize_t ctlr_type_show(struct device *dev,
struct Scsi_Host *shost = class_to_shost(dev);
struct myrs_hba *cs = shost_priv(shost);
- return snprintf(buf, 4, "%d\n", cs->ctlr_info->ctlr_type);
+ return sysfs_emit(buf, "%d\n", cs->ctlr_info->ctlr_type);
}
static DEVICE_ATTR_RO(ctlr_type);
@@ -1408,7 +1408,7 @@ static ssize_t cache_size_show(struct device *dev,
struct Scsi_Host *shost = class_to_shost(dev);
struct myrs_hba *cs = shost_priv(shost);
- return snprintf(buf, 8, "%d MB\n", cs->ctlr_info->cache_size_mb);
+ return sysfs_emit(buf, "%d MB\n", cs->ctlr_info->cache_size_mb);
}
static DEVICE_ATTR_RO(cache_size);
@@ -1418,10 +1418,10 @@ static ssize_t firmware_show(struct device *dev,
struct Scsi_Host *shost = class_to_shost(dev);
struct myrs_hba *cs = shost_priv(shost);
- return snprintf(buf, 16, "%d.%02d-%02d\n",
- cs->ctlr_info->fw_major_version,
- cs->ctlr_info->fw_minor_version,
- cs->ctlr_info->fw_turn_number);
+ return sysfs_emit(buf, "%d.%02d-%02d\n",
+ cs->ctlr_info->fw_major_version,
+ cs->ctlr_info->fw_minor_version,
+ cs->ctlr_info->fw_turn_number);
}
static DEVICE_ATTR_RO(firmware);
@@ -1488,7 +1488,7 @@ static ssize_t disable_enclosure_messages_show(struct device *dev,
struct Scsi_Host *shost = class_to_shost(dev);
struct myrs_hba *cs = shost_priv(shost);
- return snprintf(buf, 3, "%d\n", cs->disable_enc_msg);
+ return sysfs_emit(buf, "%d\n", cs->disable_enc_msg);
}
static ssize_t disable_enclosure_messages_store(struct device *dev,
--
2.29.2
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