git/linux-net
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/ synced 2026-04-17 22:23:45 -04:00
Code Issues Packages Projects Releases Wiki Activity

USB: correct API of usb_control_msg_send/recv

Browse Source 
They need to specify how memory is to be allocated,
as control messages need to work in contexts that require GFP_NOIO.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20200923134348.23862-9-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oliver Neukum
2020-09-23 15:43:42 +02:00
committed by Greg Kroah-Hartman
parent cf58e8e752
commit ddd1198e3e
2 changed files with 20 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
include/linux/usb.h
View File

@@ -1804,10 +1804,12 @@ extern int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
/* wrappers around usb_control_msg() for the most common standard requests */
int usb_control_msg_send(struct usb_device *dev, __u8 endpoint, __u8 request,
__u8 requesttype, __u16 value, __u16 index,
const void *data, __u16 size, int timeout);
const void *data, __u16 size, int timeout,
gfp_t memflags);
int usb_control_msg_recv(struct usb_device *dev, __u8 endpoint, __u8 request,
__u8 requesttype, __u16 value, __u16 index,
void *data, __u16 size, int timeout);
void *data, __u16 size, int timeout,
gfp_t memflags);
extern int usb_get_descriptor(struct usb_device *dev, unsigned char desctype,
unsigned char descindex, void *buf, int size);
extern int usb_get_status(struct usb_device *dev,