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authorMing Lei <ming.lei@canonical.com>2012-11-06 04:53:04 +0000
committerDavid S. Miller <davem@davemloft.net>2012-11-07 03:53:38 -0500
commit0547fad2dd7ccaaf3c914ba49073fa37e4e241eb (patch)
tree5434c18a01f9c4591c74e0bda596f1d4b29ddd6b /include/linux/usb/usbnet.h
parentef468d234753aff7afa96075d3be135b0df1ded0 (diff)
usbnet: introduce usbnet_{read|write}_cmd_nopm
This patch introduces the below two helpers to prepare for solving the usbnet runtime PM problem, which may cause some network utilities (ifconfig, ethtool,...) touch a suspended device. usbnet_read_cmd_nopm() usbnet_write_cmd_nopm() The above two helpers should be called by usbnet resume/suspend callback to avoid deadlock. Signed-off-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/usb/usbnet.h')
-rw-r--r--include/linux/usb/usbnet.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index 4410e4166c6..9bbeabf66c5 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -167,6 +167,10 @@ extern int usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
u16 value, u16 index, void *data, u16 size);
extern int usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
u16 value, u16 index, const void *data, u16 size);
+extern int usbnet_read_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype,
+ u16 value, u16 index, void *data, u16 size);
+extern int usbnet_write_cmd_nopm(struct usbnet *dev, u8 cmd, u8 reqtype,
+ u16 value, u16 index, const void *data, u16 size);
extern int usbnet_write_cmd_async(struct usbnet *dev, u8 cmd, u8 reqtype,
u16 value, u16 index, const void *data, u16 size);