linux-kernel - Re: linux-next: build failure after merge of the tip tree

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Date: Tue, 9 Apr 2024 09:32:32 +0300
From: Adrian Hunter <adrian.hunter@...el.com>
To: Stephen Rothwell <sfr@...b.auug.org.au>,
 Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
 "H. Peter Anvin" <hpa@...or.com>, Peter Zijlstra <peterz@...radead.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the tip tree

On 9/04/24 05:49, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the tip tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> In file included from <command-line>:
> lib/vdso/gettimeofday.c: In function 'vdso_calc_ns':
> lib/vdso/gettimeofday.c:11:33: error: 'U64_MAX' undeclared (first use in this function); did you mean 'U64_C'?
>    11 | # define VDSO_DELTA_MASK(vd)    U64_MAX
>       |                                 ^~~~~~~
> lib/vdso/gettimeofday.c:41:49: note: in expansion of macro 'VDSO_DELTA_MASK'
>    41 |         u64 delta = (cycles - vd->cycle_last) & VDSO_DELTA_MASK(vd);
>       |                                                 ^~~~~~~~~~~~~~~
> lib/vdso/gettimeofday.c:11:33: note: each undeclared identifier is reported only once for each function it appears in
>    11 | # define VDSO_DELTA_MASK(vd)    U64_MAX
>       |                                 ^~~~~~~
> lib/vdso/gettimeofday.c:41:49: note: in expansion of macro 'VDSO_DELTA_MASK'
>    41 |         u64 delta = (cycles - vd->cycle_last) & VDSO_DELTA_MASK(vd);
>       |                                                 ^~~~~~~~~~~~~~~
> 
> Caused by commit
> 
>   c8e3a8b6f2e6 ("vdso: Consolidate vdso_calc_delta()")
> 
> I have used the tip tree from next-20240408 for today.

Thanks you!  Please consider the fix cc'ed you and linked below:

    https://lore.kernel.org/all/20240409062639.3393-1-adrian.hunter@intel.com/