Linux SCSI subsystem development
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From: Deepak R Varma <drv@mailo.com>
To: "James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Saurabh Singh Sengar <ssengar@microsoft.com>,
	Praveen Kumar <kumarpraveen@linux.microsoft.com>,
	Deepak R Varma <drv@mailo.com>
Subject: [PATCH] scsi: scsi_transport_sas: Use sysfs_emit in show function callsbacks
Date: Sat, 24 Dec 2022 01:37:26 +0530	[thread overview]
Message-ID: <Y6YKfp1bHZm3UZpf@qemulion> (raw)

According to Documentation/filesystems/sysfs.rst, the show() callback
function of kobject attributes should strictly use sysfs_emit() instead
of sprintf() family functions.

Issue identified using the coccinelle device_attr_show.cocci script.

Signed-off-by: Deepak R Varma <drv@mailo.com>
---
 drivers/scsi/scsi_transport_sas.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index 74b99f2b0b74..5504067adcf1 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -522,7 +522,7 @@ show_sas_device_type(struct device *dev,
 	struct sas_phy *phy = transport_class_to_phy(dev);

 	if (!phy->identify.device_type)
-		return snprintf(buf, 20, "none\n");
+		return sysfs_emit(buf, "none\n");
 	return get_sas_device_type_names(phy->identify.device_type, buf);
 }
 static DEVICE_ATTR(device_type, S_IRUGO, show_sas_device_type, NULL);
@@ -569,7 +569,7 @@ show_sas_phy_enable(struct device *dev, struct device_attribute *attr,
 {
 	struct sas_phy *phy = transport_class_to_phy(dev);

-	return snprintf(buf, 20, "%d\n", phy->enabled);
+	return sysfs_emit(buf, "%d\n", phy->enabled);
 }

 static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, show_sas_phy_enable,
@@ -1177,7 +1177,7 @@ show_sas_rphy_device_type(struct device *dev,
 	struct sas_rphy *rphy = transport_class_to_rphy(dev);

 	if (!rphy->identify.device_type)
-		return snprintf(buf, 20, "none\n");
+		return sysfs_emit(buf, "none\n");
 	return get_sas_device_type_names(
 			rphy->identify.device_type, buf);
 }
--
2.34.1




                 reply	other threads:[~2022-12-23 20:09 UTC|newest]

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