Patch "powerpc: xor_vmx: Add '-mhard-float' to CFLAGS" has been added to the 6.1-stable tree

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This is a note to let you know that I've just added the patch titled

    powerpc: xor_vmx: Add '-mhard-float' to CFLAGS

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     powerpc-xor_vmx-add-mhard-float-to-cflags.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit a3c4db899b22a7c90a37cdc078f1d188938a20fb
Author: Nathan Chancellor <nathan@xxxxxxxxxx>
Date:   Sat Jan 27 11:07:43 2024 -0700

    powerpc: xor_vmx: Add '-mhard-float' to CFLAGS
    
    [ Upstream commit 35f20786c481d5ced9283ff42de5c69b65e5ed13 ]
    
    arch/powerpc/lib/xor_vmx.o is built with '-msoft-float' (from the main
    powerpc Makefile) and '-maltivec' (from its CFLAGS), which causes an
    error when building with clang after a recent change in main:
    
      error: option '-msoft-float' cannot be specified with '-maltivec'
      make[6]: *** [scripts/Makefile.build:243: arch/powerpc/lib/xor_vmx.o] Error 1
    
    Explicitly add '-mhard-float' before '-maltivec' in xor_vmx.o's CFLAGS
    to override the previous inclusion of '-msoft-float' (as the last option
    wins), which matches how other areas of the kernel use '-maltivec', such
    as AMDGPU.
    
    Cc: stable@xxxxxxxxxxxxxxx
    Closes: https://github.com/ClangBuiltLinux/linux/issues/1986
    Link: https://github.com/llvm/llvm-project/commit/4792f912b232141ecba4cbae538873be3c28556c
    Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>
    Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
    Link: https://msgid.link/20240127-ppc-xor_vmx-drop-msoft-float-v1-1-f24140e81376@xxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 9b394bab17eba..374b82cf13d9d 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -72,7 +72,7 @@ obj-$(CONFIG_PPC_LIB_RHEAP) += rheap.o
 obj-$(CONFIG_FTR_FIXUP_SELFTEST) += feature-fixups-test.o
 
 obj-$(CONFIG_ALTIVEC)	+= xor_vmx.o xor_vmx_glue.o
-CFLAGS_xor_vmx.o += -maltivec $(call cc-option,-mabi=altivec)
+CFLAGS_xor_vmx.o += -mhard-float -maltivec $(call cc-option,-mabi=altivec)
 # Enable <altivec.h>
 CFLAGS_xor_vmx.o += -isystem $(shell $(CC) -print-file-name=include)
 




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