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Date:   Tue, 20 Apr 2021 10:34:03 +0200
From:   Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To:     Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc:     YunQiang Su <wzssyqa@gmail.com>,
        linux-mips <linux-mips@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: build failure of malta_qemu_32r6_defconfig
Message-ID: <20210420083403.GA6557@alpha.franken.de>
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On Sun, Apr 18, 2021 at 12:01:36AM +0100, Sudip Mukherjee wrote:
> Hi Thomas,
> 
> On Fri, Apr 9, 2021 at 1:17 PM Thomas Bogendoerfer
> <tsbogend@alpha.franken.de> wrote:
> >
> > On Thu, Apr 08, 2021 at 09:42:11AM +0800, YunQiang Su wrote:
> > > Sudip Mukherjee <sudipm.mukherjee@gmail.com> 于2021年4月8日周四 上午2:26写道：
> > > >
> > > > Hi Thomas,
> > > >
> > > > I was building v5.10.28 with malta_qemu_32r6_defconfig and noticed that
> > > > it fails to build, so tried next-20210407 to see if it has been fixed.
> > > > But linux-next also has the issue with gcc-10.
> > > >
> > > > The error is:
> > > >
> > > > ./arch/mips/include/asm/vdso/gettimeofday.h: In function '__vdso_clock_gettime':
> > > > ./arch/mips/include/asm/vdso/gettimeofday.h:103:2: error: the register 'lo' cannot be clobbered in 'asm' for the current target
> > > >   103 |  asm volatile(
> > > >       |  ^~~
> > >
> > > this operation try to save lo and hi register, while they are not
> > > exisiting on r6.
> > > We are working on figure out a patch for it.
> >
> > looks like there is already a patch in patchwork, which just needs
> > a workup:
> >
> > https://patchwork.kernel.org/project/linux-mips/patch/20200801154401.4177009-1-romain.naour@gmail.com/
> 
> Looks like there has been no response to it since last 8 months. Do
> you want me to respin it and send a proper patch?

that would me fantastic and much appreciated :-)

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]