linux-kernel - Re: [PATCH 2/2] powerpc: add ALTIVEC support to lib/ when PPC

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Message-ID: <20210419133209.GR26583@gate.crashing.org>
Date:   Mon, 19 Apr 2021 08:32:09 -0500
From:   Segher Boessenkool <segher@...nel.crashing.org>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     linux-kernel@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        linuxppc-dev@...ts.ozlabs.org,
        Christophe Leroy <christophe.leroy@...roup.eu>
Subject: Re: [PATCH 2/2] powerpc: add ALTIVEC support to lib/ when PPC_FPU not set

Hi!

On Sun, Apr 18, 2021 at 01:17:26PM -0700, Randy Dunlap wrote:
> Add ldstfp.o to the Makefile for CONFIG_ALTIVEC and add
> externs for get_vr() and put_vr() in lib/sstep.c to fix the
> build errors.

>  obj-$(CONFIG_PPC_FPU)	+= ldstfp.o
> +obj-$(CONFIG_ALTIVEC)	+= ldstfp.o

It is probably a good idea to split ldstfp.S into two, one for each of
the two configuration options?


Segher