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References: <20190530141531.43462-1-vincenzo.frascino@arm.com> <20190530141531.43462-18-vincenzo.frascino@arm.com>
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From:   Arnd Bergmann <arnd@arndb.de>
Date:   Fri, 31 May 2019 10:34:59 +0200
Message-ID: <CAK8P3a29QXCP8nw7po06GeYEGvJ_y2GxjAvswFk3=Y6YCjbdDg@mail.gmail.com>
Subject: Re: [PATCH v6 17/19] mips: Add support for generic vDSO
To:     Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc:     linux-arch <linux-arch@vger.kernel.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-mips@vger.kernel.org,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@vger.kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Russell King <linux@armlinux.org.uk>,
        Ralf Baechle <ralf@linux-mips.org>,
        Paul Burton <paul.burton@mips.com>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Mark Salyzyn <salyzyn@android.com>,
        Peter Collingbourne <pcc@google.com>,
        Shuah Khan <shuah@kernel.org>,
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        Huw Davies <huw@codeweavers.com>
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On Thu, May 30, 2019 at 4:16 PM Vincenzo Frascino
<vincenzo.frascino@arm.com> wrote:

> --- a/arch/mips/vdso/vdso.lds.S
> +++ b/arch/mips/vdso/vdso.lds.S
> @@ -99,6 +99,10 @@ VERSION
>         global:
>                 __vdso_clock_gettime;
>                 __vdso_gettimeofday;
> +               __vdso_clock_getres;
> +#if _MIPS_SIM != _MIPS_SIM_ABI64
> +               __vdso_clock_gettime64;
> +#endif
>  #endif
>         local: *;
>         };

Same comment as for the corresponding arm change: I'd leave the ABI
changes to a separate patch, and probably not add __vdso_clock_getres
at all.

Also, you seem to have a typo here:

> +notrace int __vdso_clock_gettime_time64(clockid_t clock,
> +                                struct __kernel_timespec *ts)
> +{
> +       return __cvdso_clock_gettime(clock, ts);
> +}

This should be __vdso_clock_gettime64, not __vdso_clock_gettime_time64 I think.

       Arnd