linux-kernel - Re: [PATCH v4 10/12] arm64: vdso: replace gettimeofday.S with global vgettimeofday.C

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Date:   Tue, 21 Nov 2017 13:16:58 -0800
From:   Laura Abbott <labbott@...hat.com>
To:     Jon Masters <jcm@...hat.com>, Mark Salyzyn <salyzyn@...roid.com>,
        linux-kernel@...r.kernel.org, James Morse <james.morse@....com>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Andy Lutomirski <luto@...capital.net>,
        Dmitry Safonov <dsafonov@...tuozzo.com>,
        John Stultz <john.stultz@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Kees Cook <keescook@...omium.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Andy Gross <andy.gross@...aro.org>,
        Kevin Brodsky <kevin.brodsky@....com>,
        Andrew Pinski <apinski@...ium.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 10/12] arm64: vdso: replace gettimeofday.S with global
 vgettimeofday.C

On 11/21/2017 10:03 AM, Jeffrey Bastian wrote:
> On Thu, Nov 02, 2017 at 12:22:36AM -0400, Jon Masters wrote:
>> On Nov 2, 2017, at 06:14, Mark Salyzyn <salyzyn@...roid.com> wrote:
>>> Holding off respin or followup patch until after we get a response
>>> from Jon Masters <jcm@...dhat.com> on their QE tests on this patch
>>> series.
>>
>> Copying Jeff Bastian who owns QE. Jeff, can you recall what test was
>> failing when we tried the gettimeofday C rewrite VDSO patches?
> 
> The LTP clock_getres01 test was failing when we tried the initial
> implementation of gettimeofday-in-C.  This would be a good place to
> start when testing the new version of the patches.
> 
> https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/syscalls/clock_getres/clock_getres01.c
> 
> 

FWIW, I just tried this on my Mustang (4.14 + these patches) with
both DT and acpi=force and it passed.

Thanks,
Laura