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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-03-12 20:13:31 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-03-12 20:13:31 +0400 |
| commit | f7a0d426f3e7ec321b8037238b6426566df36edb (patch) | |
| tree | 505e7d0264500db94534f1226684f78af7757289 /include/linux/usb/serial.h | |
| parent | fde7d9049e55ab85a390be7f415d74c9f62dd0f9 (diff) | |
| parent | b790f5d1260b4c962bd066cd34ae982943c27fe1 (diff) | |
| download | linux-f7a0d426f3e7ec321b8037238b6426566df36edb.tar.xz | |
Merge 3.3-rc7 into usb-next
This resolves the conflict with drivers/usb/host/ehci-fsl.h that
happened with changes in Linus's and this branch at the same time.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb/serial.h')
| -rw-r--r-- | include/linux/usb/serial.h | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index 4267a9c717ba..fbb666b1b670 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -300,8 +300,10 @@ struct usb_serial_driver { #define to_usb_serial_driver(d) \ container_of(d, struct usb_serial_driver, driver) -extern int usb_serial_register(struct usb_serial_driver *driver); -extern void usb_serial_deregister(struct usb_serial_driver *driver); +extern int usb_serial_register_drivers(struct usb_driver *udriver, + struct usb_serial_driver * const serial_drivers[]); +extern void usb_serial_deregister_drivers(struct usb_driver *udriver, + struct usb_serial_driver * const serial_drivers[]); extern void usb_serial_port_softint(struct usb_serial_port *port); extern int usb_serial_probe(struct usb_interface *iface, @@ -389,5 +391,35 @@ do { \ printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg); \ } while (0) +/* + * Macro for reporting errors in write path to avoid inifinite loop + * when port is used as a console. + */ +#define dev_err_console(usport, fmt, ...) \ +do { \ + static bool __print_once; \ + struct usb_serial_port *__port = (usport); \ + \ + if (!__port->port.console || !__print_once) { \ + __print_once = true; \ + dev_err(&__port->dev, fmt, ##__VA_ARGS__); \ + } \ +} while (0) + +/* + * module_usb_serial_driver() - Helper macro for registering a USB Serial driver + * @__usb_driver: usb_driver struct to register + * @__serial_drivers: list of usb_serial drivers to register + * + * Helper macro for USB serial drivers which do not do anything special + * in module init/exit. This eliminates a lot of boilerplate. Each + * module may only use this macro once, and calling it replaces + * module_init() and module_exit() + * + */ +#define module_usb_serial_driver(__usb_driver, __serial_drivers) \ + module_driver(__usb_driver, usb_serial_register_drivers, \ + usb_serial_deregister_drivers, __serial_drivers) + #endif /* __LINUX_USB_SERIAL_H */ |