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x86/build: Remove cc-option from -mno-fp-ret-in-387

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This has been supported in GCC for forever and clang gained support for it as
an alias of '-mno-x87' in LLVM 14. Now that x86 requires LLVM 15 or newer
since

  7861640aac ("x86/build: Raise the minimum LLVM version to 15.0.0"),

this flag can be unconditionally added, saving a compiler invocation.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: a9fba2be35
Link: https://lore.kernel.org/20250814-x86-min-ver-cleanups-v1-4-ff7f19457523@kernel.org
This commit is contained in:
Nathan Chancellor 2025-08-14 18:31:40 -07:00 committed by Borislav Petkov (AMD)
parent 487fe3a936
commit 0a42d732c1
1 changed files with 1 additions and 1 deletions
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2
arch/x86/Makefile
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@ -148,7 +148,7 @@ else
# Don't autogenerate traditional x87 instructions
KBUILD_CFLAGS += -mno-80387
KBUILD_CFLAGS += $(call cc-option,-mno-fp-ret-in-387)
KBUILD_CFLAGS += -mno-fp-ret-in-387
# By default gcc and clang use a stack alignment of 16 bytes for x86.
# However the standard kernel entry on x86-64 leaves the stack on an