[PATCH] RISC-V: Guard alternative asm macros with !LINKER_SCRIPT

[Palmer Dabbelt]

On Tue, 14 Feb 2023 12:13:58 PST (-0800), Palmer Dabbelt wrote:
> Without this I get a handful of .macro related directives that trip up
> LD.
>
> Signed-off-by: Palmer Dabbelt <palmer at rivosinc.com>
> ---
> I'm not sure when this started failing, but I recently tried a build on
> my local machine (with crossdev-based toolchains) and it failed.

It's actually just because I had 
https://lore.kernel.org/all/20221216062109.865573-3-panqinglin2020@iscas.ac.cn/ 
applied, I'll squash this in if that's OK with folks over there.

> ---
>  arch/riscv/include/asm/alternative-macros.h | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/arch/riscv/include/asm/alternative-macros.h b/arch/riscv/include/asm/alternative-macros.h
> index cc6a81c00f2f..afc87528cf71 100644
> --- a/arch/riscv/include/asm/alternative-macros.h
> +++ b/arch/riscv/include/asm/alternative-macros.h
> @@ -6,6 +6,8 @@
>
>  #ifdef __ASSEMBLY__
>
> +#ifndef LINKER_SCRIPT
> +
>  .macro ALT_ENTRY oldptr newptr vendor_id errata_id new_len
>  	.4byte \oldptr - .
>  	.4byte \newptr - .
> @@ -53,6 +55,8 @@
>  #define __ALTERNATIVE_CFG(...)		ALTERNATIVE_CFG __VA_ARGS__
>  #define __ALTERNATIVE_CFG_2(...)	ALTERNATIVE_CFG_2 __VA_ARGS__
>
> +#endif /* LINKER_SCRIPT */
> +
>  #else /* !__ASSEMBLY__ */
>
>  #include <asm/asm.h>