linux-kernel - [PATCH 281/437] watchdog: wdt285: convert to read/write iterators

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Message-ID: <20240411153126.16201-282-axboe@kernel.dk>
Date: Thu, 11 Apr 2024 09:17:01 -0600
From: Jens Axboe <axboe@...nel.dk>
To: linux-kernel@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 281/437] watchdog: wdt285: convert to read/write iterators

Signed-off-by: Jens Axboe <axboe@...nel.dk>
---
 drivers/watchdog/wdt285.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/watchdog/wdt285.c b/drivers/watchdog/wdt285.c
index 5b7be7a62d54..eee5aada2ddd 100644
--- a/drivers/watchdog/wdt285.c
+++ b/drivers/watchdog/wdt285.c
@@ -114,9 +114,10 @@ static int watchdog_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static ssize_t watchdog_write(struct file *file, const char __user *data,
-			      size_t len, loff_t *ppos)
+static ssize_t watchdog_write(struct kiocb *iocb, struct iov_iter *from)
 {
+	size_t len = iov_iter_count(from);
+
 	/*
 	 *	Refresh the timer.
 	 */
@@ -179,7 +180,7 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd,
 static const struct file_operations watchdog_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
-	.write		= watchdog_write,
+	.write_iter	= watchdog_write,
 	.unlocked_ioctl	= watchdog_ioctl,
 	.compat_ioctl	= compat_ptr_ioctl,
 	.open		= watchdog_open,
-- 
2.43.0