Hi Rusty,

Looks partly better.   You seem to be using
CONFIG_SYMBOL_PREFIX_UNDERSCORE but selecting
CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX.  One trivial comment below.

Maybe this was an unfinished version of the patch?

On Tue, 12 Mar 2013 15:18:15 +1030 Rusty Russell <rusty@rustcorp.com.au> wrote:
>
> diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
> index 600494c..314ee6a 100644
> --- a/arch/blackfin/Kconfig
> +++ b/arch/blackfin/Kconfig
> @@ -45,6 +42,7 @@ config BLACKFIN
>  	select HAVE_MOD_ARCH_SPECIFIC
>  	select MODULES_USE_ELF_RELA
>  
> +
>  config GENERIC_CSUM
>  	def_bool y

Extra blank line added.

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au