linux-kernel - [PATCH v2 17/25] scsi: ncr53c8xx: Convert sprintf() family to sysfs

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Message-Id: <20240319063132.1588443-17-lizhijian@fujitsu.com>
Date: Tue, 19 Mar 2024 14:31:24 +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>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	linux-scsi@...r.kernel.org
Subject: [PATCH v2 17/25] scsi: ncr53c8xx: Convert sprintf() family to sysfs_emit() family

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: "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>
---
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@fujitsu.com/
---
 drivers/scsi/ncr53c8xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index 35869b4f9329..2bd74620caf5 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -8031,7 +8031,7 @@ static ssize_t show_ncr53c8xx_revision(struct device *dev,
 	struct Scsi_Host *host = class_to_shost(dev);
 	struct host_data *host_data = (struct host_data *)host->hostdata;
   
-	return snprintf(buf, 20, "0x%x\n", host_data->ncb->revision_id);
+	return sysfs_emit(buf, "0x%x\n", host_data->ncb->revision_id);
 }
   
 static struct device_attribute ncr53c8xx_revision_attr = {
-- 
2.29.2