LinuxLists.cc - linux-next: build failure after merge of the tip tree

2024-04-09 02:49:42

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

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.

--
Cheers,
Stephen Rothwell

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2024-04-09 06:33:31

by Adrian Hunter

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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/[email protected]/