linux-kernel - [PATCH 158/437] usb: core: convert to read/write iterators

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Message-ID: <20240411153126.16201-159-axboe@kernel.dk>
Date: Thu, 11 Apr 2024 09:14:58 -0600
From: Jens Axboe <axboe@...nel.dk>
To: linux-kernel@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 158/437] usb: core: convert to read/write iterators

Signed-off-by: Jens Axboe <axboe@...nel.dk>
---
 drivers/usb/core/devices.c | 3 ++-
 drivers/usb/core/devio.c   | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index a247da73f34d..f367132a6770 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -538,8 +538,9 @@ static ssize_t usb_device_read(struct file *file, char __user *buf,
 	mutex_unlock(&usb_bus_idr_lock);
 	return total_written;
 }
+FOPS_READ_ITER_HELPER(usb_device_read);
 
 const struct file_operations usbfs_devices_fops = {
 	.llseek =	no_seek_end_llseek,
-	.read =		usb_device_read,
+	.read_iter =	usb_device_read_iter,
 };
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 3beb6a862e80..bebfbebc1f69 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -390,6 +390,7 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
 	usb_unlock_device(dev);
 	return ret;
 }
+FOPS_READ_ITER_HELPER(usbdev_read);
 
 /*
  * async list handling
@@ -2846,7 +2847,7 @@ static __poll_t usbdev_poll(struct file *file,
 const struct file_operations usbdev_file_operations = {
 	.owner =	  THIS_MODULE,
 	.llseek =	  no_seek_end_llseek,
-	.read =		  usbdev_read,
+	.read_iter =	  usbdev_read_iter,
 	.poll =		  usbdev_poll,
 	.unlocked_ioctl = usbdev_ioctl,
 	.compat_ioctl =   compat_ptr_ioctl,
-- 
2.43.0