Re: [PATCH soc] ARM: use ARM_SINGLE_ARMV7M for ARMv7-M platforms

From: Daniel Thompson
Date: Fri May 22 2015 - 11:56:14 EST


On 22/05/15 16:29, Maxime Coquelin wrote:
2015-05-22 16:50 GMT+02:00 Arnd Bergmann <arnd@xxxxxxxx>:
[one small request as I have four armv7-m folks on Cc already:
could one of you try to fix the warning that I get with every
single build: "/git/arm-soc/arch/arm/kernel/head-nommu.S: Assembler
messages: /git/arm-soc/arch/arm/kernel/head-nommu.S:167: Warning:
Use of r13 as a source register is deprecated when r15 is the
destination register."]

Moving r13 to r12 and returning r12 seems to do the job (see below).
But I don't know if there is a more elegant way, and if it is also
valid for other architectures than armv7-m.

Why not just s/r13/r11/?

(works for me but I'm only working on single core system)
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