linux-kernel - Re: [PATCH 7/7] x86,idle: do not leave mm in idle state

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Date:   Wed, 20 Jun 2018 20:25:22 -0400
From:   Rik van Riel <riel@...riel.com>
To:     kbuild test robot <lkp@...el.com>
Cc:     linux-kernel@...r.kernel.org, x86@...r.kernel.org, luto@...nel.org,
        mingo@...nel.org, tglx@...utronix.de, dave.hansen@...ux.intel.com,
        efault@....de, songliubraving@...com, kernel-team@...com
Subject: Re: [PATCH 7/7] x86,idle: do not leave mm in idle state

On Thu, 2018-06-21 at 06:20 +0800, kbuild test robot wrote:

> All error/warnings (new ones prefixed by >>):
> 
>    arch/x86/xen/mmu_pv.c: In function 'drop_mm_ref_this_cpu':
> > > arch/x86/xen/mmu_pv.c:987:3: error: implicit declaration of
> > > function 'leave_mm' [-Werror=implicit-function-declaration]
> 
>       leave_mm(smp_processor_id());
>       ^~~~~~~~
>    cc1: some warnings being treated as errors

This was the result of a last minute cleanup,
erroneously thinking I had removed the last
user of leave_mm.  Of course there's Xen :)

Fixed in my tree for v2.

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