linux-kernel - Re: [PATCH] powerpc/52xx: Fix an invalid ASM expression ('addi' used instead of 'add')

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Message-Id: <161970488335.4033873.16440956180112521180.b4-ty@ellerman.id.au>
Date:   Fri, 30 Apr 2021 00:01:23 +1000
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Paul Mackerras <paulus@...ba.org>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] powerpc/52xx: Fix an invalid ASM expression ('addi' used instead of 'add')

On Wed, 21 Apr 2021 17:24:03 +0000 (UTC), Christophe Leroy wrote:
>   AS      arch/powerpc/platforms/52xx/lite5200_sleep.o
> arch/powerpc/platforms/52xx/lite5200_sleep.S: Assembler messages:
> arch/powerpc/platforms/52xx/lite5200_sleep.S:184: Warning: invalid register expression
> 
> In the following code, 'addi' is wrong, has to be 'add'
> 
> 	/* local udelay in sram is needed */
>   udelay: /* r11 - tb_ticks_per_usec, r12 - usecs, overwrites r13 */
> 	mullw	r12, r12, r11
> 	mftb	r13	/* start */
> 	addi	r12, r13, r12 /* end */

Applied to powerpc/next.

[1/1] powerpc/52xx: Fix an invalid ASM expression ('addi' used instead of 'add')
      https://git.kernel.org/powerpc/c/8a87a507714386efc39c3ae6fa24d4f79846b522

cheers