On Wed, Aug 12, 2020 at 10:35 AM Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> wrote: > > On Wed, Aug 12, 2020 at 7:42 AM Jean-Philippe Brucker > <jean-philippe@xxxxxxxxxx> wrote: > > > > When building Arm NEON (SIMD) code from lib/raid6/neon.uc, GCC emits > > DWARF information using a base type "__Poly8_t", which is internal to > > GCC and not recognized by Clang. This causes build failures when > > building with Clang a vmlinux.h generated from an arm64 kernel that was > > built with GCC. > > > > vmlinux.h:47284:9: error: unknown type name '__Poly8_t' > > typedef __Poly8_t poly8x16_t[16]; > > ^~~~~~~~~ > > > > The polyX_t types are defined as unsigned integers in the "Arm C > > Language Extension" document (101028_Q220_00_en). Emit typedefs based on > > standard integer types for the GCC internal types, similar to those > > emitted by Clang. > > > > Including linux/kernel.h to use ARRAY_SIZE() incidentally redefined > > max(), causing a build bug due to different types, hence the seemingly > > unrelated change. > > > > Reported-by: Jakov Petrina <jakov.petrina@xxxxxxxxxx> > > Signed-off-by: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx> > > --- > > LGTM. > > Acked-by: Andrii Nakryiko <andriin@xxxxxx> Applied. Thanks
