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Message-ID: <dd1a30609f05e800550097080c1d1b27065f91ff.camel@codethink.co.uk>
Subject: Re: [Y2038] [PATCH 08/23] y2038: ipc: remove __kernel_time_t
 reference from headers
From:   Ben Hutchings <ben.hutchings@codethink.co.uk>
To:     Arnd Bergmann <arnd@arndb.de>, y2038@lists.linaro.org,
        Ralf Baechle <ralf@linux-mips.org>,
        Paul Burton <paul.burton@mips.com>,
        James Hogan <jhogan@kernel.org>,
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        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        "David S. Miller" <davem@davemloft.net>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        x86@kernel.org
Cc:     linux-arch@vger.kernel.org, linux-parisc@vger.kernel.org,
        linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
        "H. Peter Anvin" <hpa@zytor.com>, sparclinux@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org
Date:   Wed, 20 Nov 2019 22:49:19 +0000
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On Fri, 2019-11-08 at 22:07 +0100, Arnd Bergmann wrote:
[...]
> --- a/arch/x86/include/uapi/asm/sembuf.h
> +++ b/arch/x86/include/uapi/asm/sembuf.h
> @@ -21,9 +21,9 @@ struct semid64_ds {
>  	unsigned long	sem_ctime;	/* last change time */
>  	unsigned long	sem_ctime_high;
>  #else
> -	__kernel_time_t	sem_otime;	/* last semop time */
> +	long		sem_otime;	/* last semop time */
>  	__kernel_ulong_t __unused1;
> -	__kernel_time_t	sem_ctime;	/* last change time */
> +	long		sem_ctime;	/* last change time */
>  	__kernel_ulong_t __unused2;
>  #endif
>  	__kernel_ulong_t sem_nsems;	/* no. of semaphores in array */
[...]

We need to use __kernel_long_t here to do the right thing on x32.

Ben.

-- 
Ben Hutchings, Software Developer                         Codethink Ltd
https://www.codethink.co.uk/                 Dale House, 35 Dale Street
                                     Manchester, M1 2HF, United Kingdom