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USB: otg: fix link breakage, when the NOP USB Xceiver is a module

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If the NOP USB OTG transceiver driver is built as a module, the otg.h
header declares external functions, but if they are referenced from the
kernel proper, as, e.g., in the OMAP3 case, where the omap3evm board is
calling the usb_nop_xceiv_register() function, linkage breaks. This patch
fixes this problem.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Guennadi Liakhovetski 2010-12-09 22:46:29 +01:00 committed by Greg Kroah-Hartman
parent 537baabbdf
commit 352a337832
1 changed files with 1 additions and 1 deletions
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2
include/linux/usb/otg.h
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@ -116,7 +116,7 @@ struct otg_transceiver {
/* for board-specific init logic */
extern int otg_set_transceiver(struct otg_transceiver *);
#if defined(CONFIG_NOP_USB_XCEIV) || defined(CONFIG_NOP_USB_XCEIV_MODULE)
#if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE))
/* sometimes transceivers are accessed only through e.g. ULPI */
extern void usb_nop_xceiv_register(void);
extern void usb_nop_xceiv_unregister(void);