Re: [PATCH] arm64: alternatives: Move length validation in alternative_{insn,endif}

From: Catalin Marinas
Date: Thu Apr 15 2021 - 05:17:53 EST


Hi Nathan,

On Tue, Apr 13, 2021 at 05:08:04PM -0700, Nathan Chancellor wrote:
> After commit 2decad92f473 ("arm64: mte: Ensure TIF_MTE_ASYNC_FAULT is
> set atomically"), LLVM's integrated assembler fails to build entry.S:
>
> <instantiation>:5:7: error: expected assembly-time absolute expression
> .org . - (664b-663b) + (662b-661b)
> ^
> <instantiation>:6:7: error: expected assembly-time absolute expression
> .org . - (662b-661b) + (664b-663b)
> ^

I tried the latest Linus' tree and linux-next (defconfig) with this
commit in and I can't get your build error. I used both clang-10 from
Debian stable and clang-11 from Debian sid. So, which clang version did
you use or which kernel config options?

--
Catalin