On Mon, Dec 13, 2021 at 6:58 PM Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> wrote: > > According to the document "Minimal requirements to compile the Kernel [1], [1] is the kernel document, so you do not need to refer to the URL. You can say: According to Documentation/process/changes.rst, ... https://www.kernel.org/doc/html/latest is the moving target. If you get access to this URL some years later, the min GCC version may not be 5.1 Other than the nit, Reviewed-by: Masahiro Yamada <masahiroy@xxxxxxxxxx> > the minimal version of GCC is 5.1, -mr10k-cache-barrier=store is supported > with GCC 5.1 [2], so just remove the unnecessary check to fix the build > error [3]: > > arch/mips/sgi-ip22/Platform:28: *** gcc doesn't support needed option -mr10k-cache-barrier=store. Stop. > > [1] https://www.kernel.org/doc/html/latest/process/changes.html > [2] https://gcc.gnu.org/onlinedocs/gcc-5.1.0/gcc/MIPS-Options.html > [3] https://github.com/ClangBuiltLinux/linux/issues/1543 > > Reported-by: Ryutaroh Matsumoto <ryutaroh@xxxxxxxxxxxxxxxxxx> > Suggested-by: Nathan Chancellor <nathan@xxxxxxxxxx> > Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> > --- > arch/mips/sgi-ip22/Platform | 5 ----- > 1 file changed, 5 deletions(-) > > diff --git a/arch/mips/sgi-ip22/Platform b/arch/mips/sgi-ip22/Platform > index 62fa30b..a4c46e3 100644 > --- a/arch/mips/sgi-ip22/Platform > +++ b/arch/mips/sgi-ip22/Platform > @@ -23,10 +23,5 @@ endif > # be 16kb aligned or the handling of the current variable will break. > # Simplified: what IP22 does at 128MB+ in ksegN, IP28 does at 512MB+ in xkphys > # > -ifdef CONFIG_SGI_IP28 > - ifeq ($(call cc-option-yn,-march=r10000 -mr10k-cache-barrier=store), n) > - $(error gcc doesn't support needed option -mr10k-cache-barrier=store) > - endif > -endif > cflags-$(CONFIG_SGI_IP28) += -mr10k-cache-barrier=store -I$(srctree)/arch/mips/include/asm/mach-ip28 > load-$(CONFIG_SGI_IP28) += 0xa800000020004000 > -- > 2.1.0 > -- Best Regards Masahiro Yamada
