linux-kernel - [PATCH 4/4] use device_attr macros for sysfs attribute

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1464089188-6155-5-git-send-email-pranjas@gmail.com>
Date:	Tue, 24 May 2016 14:26:28 +0300
From:	"Pranay Kr. Srivastava" <pranjas@...il.com>
To:	mpa@...gutronix.de, nbd-general@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Cc:	"Pranay Kr. Srivastava" <pranjas@...il.com>
Subject: [PATCH 4/4] use device_attr macros for sysfs attribute

This patch changes the pid sysfs device attribute to use
DEVICE_ATTR_* macro.

Signed-off-by: Pranay Kr. Srivastava <pranjas@...il.com>
---
 drivers/block/nbd.c |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 59db890..d6ab9c9 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -436,10 +436,8 @@ static ssize_t pid_show(struct device *dev,
 	return sprintf(buf, "%d\n", task_pid_nr(nbd->task_recv));
 }
 
-static struct device_attribute pid_attr = {
-	.attr = { .name = "pid", .mode = S_IRUGO},
-	.show = pid_show,
-};
+
+static DEVICE_ATTR_RO(pid);
 
 static int nbd_thread_recv(struct nbd_device *nbd, struct block_device *bdev)
 {
@@ -452,7 +450,7 @@ static int nbd_thread_recv(struct nbd_device *nbd, struct block_device *bdev)
 
 	nbd->task_recv = current;
 
-	ret = device_create_file(disk_to_dev(nbd->disk), &pid_attr);
+	ret = device_create_file(disk_to_dev(nbd->disk), &dev_attr_pid);
 	if (ret) {
 		dev_err(disk_to_dev(nbd->disk), "device_create_file failed!\n");
 
@@ -475,7 +473,7 @@ static int nbd_thread_recv(struct nbd_device *nbd, struct block_device *bdev)
 
 	nbd_size_clear(nbd, bdev);
 
-	device_remove_file(disk_to_dev(nbd->disk), &pid_attr);
+	device_remove_file(disk_to_dev(nbd->disk), &dev_attr_pid);
 
 	nbd->task_recv = NULL;
 
-- 
1.7.9.5