linux-kernel - [PATCH 165/437] usb: host: uhci: convert to read/write iterators

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Message-ID: <20240411153126.16201-166-axboe@kernel.dk>
Date: Thu, 11 Apr 2024 09:15:05 -0600
From: Jens Axboe <axboe@...nel.dk>
To: linux-kernel@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 165/437] usb: host: uhci: convert to read/write iterators

Signed-off-by: Jens Axboe <axboe@...nel.dk>
---
 drivers/usb/host/uhci-debug.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c
index c4e67c4b51f6..e8329c44db59 100644
--- a/drivers/usb/host/uhci-debug.c
+++ b/drivers/usb/host/uhci-debug.c
@@ -589,11 +589,10 @@ static loff_t uhci_debug_lseek(struct file *file, loff_t off, int whence)
 	return no_seek_end_llseek_size(file, off, whence, up->size);
 }
 
-static ssize_t uhci_debug_read(struct file *file, char __user *buf,
-				size_t nbytes, loff_t *ppos)
+static ssize_t uhci_debug_read(struct kiocb *iocb, struct iov_iter *to)
 {
-	struct uhci_debug *up = file->private_data;
-	return simple_read_from_buffer(buf, nbytes, ppos, up->data, up->size);
+	struct uhci_debug *up = iocb->ki_filp->private_data;
+	return simple_copy_to_iter(up->data, &iocb->ki_pos, up->size, to);
 }
 
 static int uhci_debug_release(struct inode *inode, struct file *file)
@@ -610,7 +609,7 @@ static const struct file_operations uhci_debug_operations = {
 	.owner =	THIS_MODULE,
 	.open =		uhci_debug_open,
 	.llseek =	uhci_debug_lseek,
-	.read =		uhci_debug_read,
+	.read_iter =	uhci_debug_read,
 	.release =	uhci_debug_release,
 };
 #define UHCI_DEBUG_OPS
-- 
2.43.0