On Mon, 30 Jul 2012, Pekka Enberg wrote: > > The label oops is used in CONFIG_DEBUG_VM ifdef block and is defined > > outside ifdef CONFIG_DEBUG_VM block. This results in the following > > build warning when built with CONFIG_DEBUG_VM disabled. Fix to move > > label oops definition to inside a CONFIG_DEBUG_VM block. > > > > mm/slab_common.c: In function ‘kmem_cache_create’: > > mm/slab_common.c:101:1: warning: label ‘oops’ defined but not used > > [-Wunused-label] > > > > Signed-off-by: Shuah Khan <shuah.khan@xxxxxx> > > I merged this as an obvious and safe fix for current merge window. We > need to clean this up properly for v3.7. > -Wunused-label is overridden in gcc for a label that is conditionally referenced by using __maybe_unused in the kernel. I'm not sure what's so obscure about out: __maybe_unused Are label attributes really that obsecure?