linux-kernel - Re: linux-next: manual merge of the y2038 tree with the tip tree

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Date:   Tue, 3 Dec 2019 14:02:59 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Dmitry Safonov <dima@...sta.com>
Subject: Re: linux-next: manual merge of the y2038 tree with the tip tree

Hi all,

This is now a conflict between the tip tree and Linus' tree.

On Wed, 27 Nov 2019 13:01:39 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Today's linux-next merge of the y2038 tree got a conflict in:
> 
>   kernel/time/time.c
> 
> between commit:
> 
>   7b8474466ed9 ("time: Zero the upper 32-bits in __kernel_timespec on 32-bit")
> 
> from the tip tree and commit:
> 
>   3ca47e958a64 ("y2038: remove CONFIG_64BIT_TIME")
> 
> from the y2038 tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc kernel/time/time.c
> index 4d434dad6ebc,58e312e7380f..000000000000
> --- a/kernel/time/time.c
> +++ b/kernel/time/time.c
> @@@ -884,8 -879,7 +882,7 @@@ int get_timespec64(struct timespec64 *t
>   	ts->tv_sec = kts.tv_sec;
>   
>   	/* Zero out the padding for 32 bit systems or in compat mode */
> - 	if (IS_ENABLED(CONFIG_64BIT_TIME) && (!IS_ENABLED(CONFIG_64BIT) ||
> - 					      in_compat_syscall()))
>  -	if (in_compat_syscall())
> ++	if (!IS_ENABLED(CONFIG_64BIT) || in_compat_syscall())
>   		kts.tv_nsec &= 0xFFFFFFFFUL;
>   
>   	ts->tv_nsec = kts.tv_nsec;

-- 
Cheers,
Stephen Rothwell

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