CONFIG_X86_L1_CACHE_SHIFT    7 arch/um/include/asm/cache.h # define L1_CACHE_SHIFT		(CONFIG_X86_L1_CACHE_SHIFT)
CONFIG_X86_L1_CACHE_SHIFT    8 arch/x86/include/asm/cache.h #define L1_CACHE_SHIFT	(CONFIG_X86_L1_CACHE_SHIFT)