Re: usb_nop_xceiv_register() missing when OTG built as modules

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"Gupta, Ajay Kumar" <ajay.gupta@xxxxxx> writes:

>> -----Original Message-----
>> From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-
>> owner@xxxxxxxxxxxxxxx] On Behalf Of Kevin Hilman
>> Sent: Thursday, March 04, 2010 5:39 AM
>> To: linux-omap@xxxxxxxxxxxxxxx
>> Subject: usb_nop_xceiv_register() missing when OTG built as modules
>> 
>> This just started happening with v2.6.33.
>> 
>> On OMAP3EVM, usb_nop_xceiv_register() is called in the board file,
>> but if USB gadget support is built as a module, this causes a link
>> error (below)
>
> Kevin,
>
> usb_nop_xceiv_register() is defined at drivers/usb/otg/nop-usb-xceiv.c file
> which gets compiled if CONFIG_NOP_USB_XCEIV=y.
>
> I think you have enabled CONFIG_NOP_USB_XCEIV as module?

Yes, I did that intentionally.  I *want* USB compiled as a module.  If
I do that, the build fails, and that's a bug that needs to be fixed.

Kevin


>
>> 
>> This is obviously broken, and this hook needs to be fixed to work when
>> called as a module.
>> 
>> To reproduce, start with omap3_defconfig and change both USB host
>> and gadget to be built as modules.
>> 
>> Kevin
>> 
>> 
>>   [...]
>>   LD      .tmp_vmlinux1
>> arch/arm/mach-omap2/built-in.o: In function `omap3_evm_init':
>> /opt/home/khilman/work.local/kernel/omap/dev/arch/arm/mach-omap2/board-
>> omap3evm.c:686: undefined reference to `usb_nop_xceiv_register'
>> arch/arm/mach-omap2/built-in.o: In function `omap_4430sdp_init':
>> /opt/home/khilman/work.local/kernel/omap/dev/arch/arm/mach-omap2/board-
>> 4430sdp.c:143: undefined reference to `usb_nop_xceiv_register'
>> make[1]: *** [.tmp_vmlinux1] Error 1
>> make: *** [sub-make] Error 2
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