On Mon, Dec 13, 2021 at 09:35:20AM +0900, Ryutaroh Matsumoto wrote:

From: Masahiro Yamada <masahiroy@kernel.org>
Subject: Re: [PATCH v2] MIPS: Makefile: Remove "ifdef need-compiler" for Kbuild.platforms
Date: Sat, 11 Dec 2021 01:39:10 +0900

quoted

Nathan's patch cleaned up  arch/mips/loognson2ef/Platform,
but I still see similar code in arch/mips/sgi-ip22/Platform.


ifdef CONFIG_SGI_IP28
  ifeq ($(call cc-option-yn,-march=r10000 -mr10k-cache-barrier=store), n)
      $(error gcc doesn't support needed option -mr10k-cache-barrier=store)
  endif
endif


Doesn't this cause a failure of *-pkg builds for sgi-ip22 platform?

Yes, it does, as reported at
https://github.com/ClangBuiltLinux/linux/issues/1543

It seems like that section can be removed for the same reason as my
patch (that flag is supported with GCC 5.1.0) then this patch can be
applied without any issues.

Cheers,
Nathan