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From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: devel@linuxdriverproject.org
Cc: kbuild-all@01.org, kbuild test robot <lkp@intel.com>,
        Olaf Hering <olaf@aepfle.de>, Radim Krcmar <rkrcmar@redhat.com>,
        Haiyang Zhang <haiyangz@microsoft.com>, Alex Ng <alexng@microsoft.com>,
        linux-kernel@vger.kernel.org, John Stultz <john.stultz@linaro.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Richard Cochran <richardcochran@gmail.com>
Subject: Re: [PATCH v4 2/2] hv_utils: implement Hyper-V PTP source
References: <201701200149.nxSn81op%fengguang.wu@intel.com>
Date: Fri, 20 Jan 2017 12:06:19 +0100
In-Reply-To: <201701200149.nxSn81op%fengguang.wu@intel.com> (kbuild test
        robot's message of "Fri, 20 Jan 2017 02:01:24 +0800")
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kbuild test robot <lkp@intel.com> writes:

> Hi Vitaly,
>
> [auto build test WARNING on linus/master]
> [also build test WARNING on v4.10-rc4 next-20170119]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url:    https://github.com/0day-ci/linux/commits/Vitaly-Kuznetsov/hv_util-adjust-system-time-smoothly/20170120-011342
> config: x86_64-rhel (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=x86_64 
>
> All warnings (new ones prefixed by >>):
>
>    drivers/hv/hv_util.c: In function 'hv_timesync_init':
>>> drivers/hv/hv_util.c:561:36: warning: passing argument 1 of 'ptp_clock_register' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
>      hv_ptp_clock = ptp_clock_register(&ptp_hyperv_info, NULL);
>                                        ^
>    In file included from drivers/hv/hv_util.c:30:0:
>    include/linux/ptp_clock_kernel.h:172:26: note: expected 'struct ptp_clock_info *' but argument is of type 'const struct ptp_clock_info *'
>     extern struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
>                              ^~~~~~~~~~~~~~~~~~
>

It seems ptp_clock_register() could've been changed to take 'const
struct ptp_clock_info *' such a change doesn't belong this series, I'll
drop the 'const' qualifier in the next submission.

-- 
  Vitaly