linux-kernel - [PATCH 18/42] drivers/scsi/aic94xx: Convert snprintf to sysfs

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Message-Id: <20240116045151.3940401-16-lizhijian@fujitsu.com>
Date: Tue, 16 Jan 2024 12:51:27 +0800
From: Li Zhijian <lizhijian@...itsu.com>
To: linux-kernel@...r.kernel.org
Cc: Li Zhijian <lizhijian@...itsu.com>,
	"James E.J. Bottomley" <jejb@...ux.ibm.com>,
	linux-scsi@...r.kernel.org
Subject: [PATCH 18/42] drivers/scsi/aic94xx: 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/aic94xx/aic94xx_init.c:267:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/aic94xx/aic94xx_init.c:276:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/aic94xx/aic94xx_init.c:284:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/aic94xx/aic94xx_init.c:455:8-16: WARNING: please use sysfs_emit

No functional change intended

CC: "James E.J. Bottomley" <jejb@...ux.ibm.com>
CC: linux-scsi@...r.kernel.org
Signed-off-by: Li Zhijian <lizhijian@...itsu.com>
---
 drivers/scsi/aic94xx/aic94xx_init.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index 8a3340d8d7ad..b006e852c40c 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -264,8 +264,7 @@ static ssize_t asd_show_dev_rev(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
-	return snprintf(buf, PAGE_SIZE, "%s\n",
-			asd_dev_rev[asd_ha->revision_id]);
+	return sysfs_emit(buf, "%s\n", asd_dev_rev[asd_ha->revision_id]);
 }
 static DEVICE_ATTR(aic_revision, S_IRUGO, asd_show_dev_rev, NULL);
 
@@ -273,7 +272,7 @@ static ssize_t asd_show_dev_bios_build(struct device *dev,
 				       struct device_attribute *attr,char *buf)
 {
 	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
-	return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
+	return sysfs_emit(buf, "%d\n", asd_ha->hw_prof.bios.bld);
 }
 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
 
@@ -281,7 +280,7 @@ static ssize_t asd_show_dev_pcba_sn(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
 	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
-	return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
+	return sysfs_emit(buf, "%s\n", asd_ha->hw_prof.pcba_sn);
 }
 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
 
@@ -452,9 +451,9 @@ static ssize_t asd_show_update_bios(struct device *dev,
 	if (asd_ha->bios_status != FLASH_IN_PROGRESS)
 		asd_ha->bios_status = FLASH_OK;
 
-	return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
-			flash_error_table[i].err_code,
-			flash_error_table[i].reason);
+	return sysfs_emit(buf, "status=%x %s\n",
+			  flash_error_table[i].err_code,
+			  flash_error_table[i].reason);
 }
 
 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,
@@ -937,7 +936,7 @@ static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
 
 static ssize_t version_show(struct device_driver *driver, char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
+	return sysfs_emit(buf, "%s\n", ASD_DRIVER_VERSION);
 }
 static DRIVER_ATTR_RO(version);
 
-- 
2.29.2