linux-kernel - Re: [PATCH 03/14] y2038: Globally rename compat_time to old

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Message-ID: <201808292023.n7IP8zK3%fengguang.wu@intel.com>
Date:   Wed, 29 Aug 2018 20:50:51 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     kbuild-all@...org, tglx@...utronix.de, y2038@...ts.linaro.org,
        linux-api@...r.kernel.org, Christoph Hellwig <hch@....de>,
        linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        deepa.kernel@...il.com, linux-arch@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 03/14] y2038: Globally rename compat_time to old_time32

Hi Arnd,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.19-rc1 next-20180829]
[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/Arnd-Bergmann/y2038-syscall-changes-for-4-20/20180828-035049
reproduce:
        # apt-get install sparse
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

   include/uapi/linux/perf_event.h:147:56: sparse: cast truncates bits from constant value (8000000000000000 becomes 0)
>> kernel/time/time.c:866:5: sparse: symbol '__get_old_timespec32' was not declared. Should it be static?
>> kernel/time/time.c:882:5: sparse: symbol '__put_old_timespec32' was not declared. Should it be static?

Please review and possibly fold the followup patch.

---
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