linux-kernel - Re: [PATCH 1/8] ARM: ARMv7-M: Fix register restore corrupt after svc call

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Message-ID: <703c43f1-7b83-32ec-7c50-baab00b6bb34@arm.com>
Date:   Thu, 4 Mar 2021 09:02:05 +0000
From:   Vladimir Murzin <vladimir.murzin@....com>
To:     dillon min <dillon.minfei@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-stm32@...md-mailman.stormreply.com,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux@...linux.org.uk, afzal.mohd.ma@...il.com
Subject: Re: [PATCH 1/8] ARM: ARMv7-M: Fix register restore corrupt after svc
 call

On 3/4/21 5:42 AM, dillon min wrote:
> Okay， got it. after adding msp/psp switch code in RTOS, now the kernel
> can be loaded normally
> without any modification.

Yay!

> 
> So, just drop the changes in proc-v7m.S.

Glad to see they are not strictly necessary :)

Thanks
Vladimir