[U-Boot] [PATCH 1/3] common: add ifdefs around bouncebuf.c body

[Stephen Warren <swarren@wwwdotorg.org>]

On 11/05/2012 05:54 PM, Marek Vasut wrote:
> Dear Stephen Warren,
> 
>> From: Stephen Warren <swarren@nvidia.com>
>>
>> If a U-Boot config file enables CONFIG_BOUNCE_BUFFER only for the main
>> U-Boot build and not for the SPL, then config.mk will contain
>> CONFIG_BOUNCE_BUFFER=y, so common/Makefile will build bouncebuf.c for
>> both the SPL and main U-Boot, but config.h won't set CONFIG_BOUNCE_BUFFER
>> for the SPL, so bouncebuf.h will provide static inline functions, which
>> will conflict with the compiled bouncebuf.c. Solve this by guarding the
>> body of bouncebuf.c with the ifdef to avoid conflicts.
> 
> Uh, don't you want the bounce buffer not compiled in for SPL? Then maybe add 
> CONFIG_SPL_BOUNCE_BUFFER to force BB to be compiled into SPL or something ...

Not compiling bouncebuf.c for SPL would solve this too. I have no idea
what build system contortions would be required to do this though. Do
you think the build system should be fixed first rather than taking this
series/patch?

I guess we shouldn't need a separate CONFIG_SPL_BOUNCE_BUFFER option
though; we should rather simply set CONFIG_SPL_BOUNCE_BUFFER
appropriately for SPL and non-SPL, and have everything key off that one
variable, right?