arch/sh/include/asm/checksum.h - linux - Git at Google

 #ifdef CONFIG_SUPERH32
 # include <asm/checksum_32.h>
 #else
 # include <asm-generic/checksum.h>
 #endif
	#ifdef CONFIG_SUPERH32
	# include <asm/checksum_32.h>
	#else
	# include <asm-generic/checksum.h>
	#endif