On Tue, Nov 24, 2020 at 11:40 AM Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx> wrote: > Since commit acaab7335bd6 ("lib/zlib: remove outdated and incorrect > pre-increment optimization"), get_unaligned16() is only used when > !CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS. > > Hence, make CC=clang W=1 warns: > > lib/zlib_inflate/inffast.c:20:1: > warning: unused function 'get_unaligned16' [-Wunused-function] > > Define get_unaligned16() only when it is actually used. > > Signed-off-by: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx> AFAICS a nicer option would be to "#include <asm/unaligned.h>" and then use "get_unaligned", which should automatically do the right thing everywhere and remove the need for defining get_unaligned16() and checking CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS entirely?