| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.7 134/179] x86: math-emu: Fix up cmp insn for clang ias | Date | Mon, 27 Jul 2020 16:05:09 +0200 |
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From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit 81e96851ea32deb2c921c870eecabf335f598aeb ]
The clang integrated assembler requires the 'cmp' instruction to have a length prefix here:
arch/x86/math-emu/wm_sqrt.S:212:2: error: ambiguous instructions require an explicit suffix (could be 'cmpb', 'cmpw', or 'cmpl') cmp $0xffffffff,-24(%ebp) ^
Make this a 32-bit comparison, which it was clearly meant to be.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lkml.kernel.org/r/20200527135352.1198078-1-arnd@arndb.de Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/x86/math-emu/wm_sqrt.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/math-emu/wm_sqrt.S b/arch/x86/math-emu/wm_sqrt.S index 3b2b58164ec18..40526dd85137b 100644 --- a/arch/x86/math-emu/wm_sqrt.S +++ b/arch/x86/math-emu/wm_sqrt.S @@ -209,7 +209,7 @@ sqrt_stage_2_finish: #ifdef PARANOID /* It should be possible to get here only if the arg is ffff....ffff */ - cmp $0xffffffff,FPU_fsqrt_arg_1 + cmpl $0xffffffff,FPU_fsqrt_arg_1 jnz sqrt_stage_2_error #endif /* PARANOID */ -- 2.25.1
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