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* [PATCH] include/linux/usb/usb_phy_gen_xceiv.h: check built-in or module for swithing usb_nop_xceiv_register() implementation
@ 2013-10-23  9:55 Chen Gang
  2013-11-04  9:32 ` Chen Gang
  2013-11-14 18:37 ` Tony Lindgren
  0 siblings, 2 replies; 4+ messages in thread
From: Chen Gang @ 2013-10-23  9:55 UTC (permalink / raw)
  To: linux-arm-kernel

When CONFIG_NOP_USB_XCEIV is as 'm', usb_nop_xceiv_register() will be
exported when the related module is loaded. So for built-in source
code, still need use the empty one.

Or it will can not pass compiling, the related error (for arm, with 
allmodconfig):

  arch/arm/mach-omap2/built-in.o: In function `omap3_evm_init':
  arch/arm/mach-omap2/board-omap3evm.c:703: undefined reference to `usb_nop_xceiv_register'


Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 include/linux/usb/usb_phy_gen_xceiv.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/include/linux/usb/usb_phy_gen_xceiv.h b/include/linux/usb/usb_phy_gen_xceiv.h
index f9a7e7b..8515958 100644
--- a/include/linux/usb/usb_phy_gen_xceiv.h
+++ b/include/linux/usb/usb_phy_gen_xceiv.h
@@ -12,7 +12,8 @@ struct usb_phy_gen_xceiv_platform_data {
 	unsigned int needs_reset:1;
 };
 
-#if IS_ENABLED(CONFIG_NOP_USB_XCEIV)
+#if IS_BUILTIN(CONFIG_NOP_USB_XCEIV) || \
+	(IS_MODULE(CONFIG_NOP_USB_XCEIV) && 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);
-- 
1.7.7.6

^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2013-11-15  1:36 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2013-10-23  9:55 [PATCH] include/linux/usb/usb_phy_gen_xceiv.h: check built-in or module for swithing usb_nop_xceiv_register() implementation Chen Gang
2013-11-04  9:32 ` Chen Gang
2013-11-14 18:37 ` Tony Lindgren
2013-11-15  1:36   ` Chen Gang

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