2024-02-23 03:33:28

by Stephen Rothwell

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

Hi all,

After merging the gpio-brgl tree, today's linux-next build (x86_64
allmodconfig) failed like this:

x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_write64':
gpio-mmio.c:(.text+0x1489427): undefined reference to `iowrite64'
x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_read64':
gpio-mmio.c:(.text+0x14894a0): undefined reference to `ioread64'
x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_write64be':
gpio-mmio.c:(.text+0x1489527): undefined reference to `iowrite64be'
x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_read64be':
gpio-mmio.c:(.text+0x14895a0): undefined reference to `ioread64be'

Caused by commit

36e44186e0ba ("gpio: mmio: Support 64-bit BE access")

I have used the gpio-brgl from next-20240222 for today.

--
Cheers,
Stephen Rothwell


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2024-02-23 07:51:31

by Bartosz Golaszewski

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Subject: Re: linux-next: build failure after merge of the gpio-brgl tree

On Fri, 23 Feb 2024 at 04:33, Stephen Rothwell <[email protected]> wrote:
>
> Hi all,
>
> After merging the gpio-brgl tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
>
> x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_write64':
> gpio-mmio.c:(.text+0x1489427): undefined reference to `iowrite64'
> x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_read64':
> gpio-mmio.c:(.text+0x14894a0): undefined reference to `ioread64'
> x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_write64be':
> gpio-mmio.c:(.text+0x1489527): undefined reference to `iowrite64be'
> x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_read64be':
> gpio-mmio.c:(.text+0x14895a0): undefined reference to `ioread64be'
>
> Caused by commit
>
> 36e44186e0ba ("gpio: mmio: Support 64-bit BE access")
>
> I have used the gpio-brgl from next-20240222 for today.
>
> --
> Cheers,
> Stephen Rothwell

Hi Stephen,

I'm not seeing this issue with allmodconfig on x86_64, could you give
me some more information on the build environment?

Andy: Could it be that the ifdefs you added should depend on
CONFIG_64BIT and not only on the BITS_PER_LONG value?

Bartosz

2024-02-23 12:30:29

by Andy Shevchenko

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Subject: Re: linux-next: build failure after merge of the gpio-brgl tree

On Fri, Feb 23, 2024 at 9:51 AM Bartosz Golaszewski
<[email protected]> wrote:
> On Fri, 23 Feb 2024 at 04:33, Stephen Rothwell <[email protected]> wrote:

> > After merging the gpio-brgl tree, today's linux-next build (x86_64
> > allmodconfig) failed like this:
> >
> > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_write64':
> > gpio-mmio.c:(.text+0x1489427): undefined reference to `iowrite64'
> > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_read64':
> > gpio-mmio.c:(.text+0x14894a0): undefined reference to `ioread64'
> > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_write64be':
> > gpio-mmio.c:(.text+0x1489527): undefined reference to `iowrite64be'
> > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_read64be':
> > gpio-mmio.c:(.text+0x14895a0): undefined reference to `ioread64be'
> >
> > Caused by commit
> >
> > 36e44186e0ba ("gpio: mmio: Support 64-bit BE access")
> >
> > I have used the gpio-brgl from next-20240222 for today.

> I'm not seeing this issue with allmodconfig on x86_64, could you give
> me some more information on the build environment?
>
> Andy: Could it be that the ifdefs you added should depend on
> CONFIG_64BIT and not only on the BITS_PER_LONG value?

If so, it will be the old issue as I just used what is currently done
for LE 64-bit accessors in the same file.
I think the problem here is different, i.e. io*64*() are not available
on all (64-bit) architectures in comparison to readq()/writeq().
I'll look at this later today.


--
With Best Regards,
Andy Shevchenko

2024-02-25 01:58:34

by Stephen Rothwell

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Subject: Re: linux-next: build failure after merge of the gpio-brgl tree

Hi Bartosz,

On Fri, 23 Feb 2024 08:51:10 +0100 Bartosz Golaszewski <[email protected]> wrote:
>
> On Fri, 23 Feb 2024 at 04:33, Stephen Rothwell <[email protected]> wrote:
> >
> > After merging the gpio-brgl tree, today's linux-next build (x86_64
> > allmodconfig) failed like this:
> >
> > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_write64':
> > gpio-mmio.c:(.text+0x1489427): undefined reference to `iowrite64'
> > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_read64':
> > gpio-mmio.c:(.text+0x14894a0): undefined reference to `ioread64'
> > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_write64be':
> > gpio-mmio.c:(.text+0x1489527): undefined reference to `iowrite64be'
> > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_read64be':
> > gpio-mmio.c:(.text+0x14895a0): undefined reference to `ioread64be'
> >
> > Caused by commit
> >
> > 36e44186e0ba ("gpio: mmio: Support 64-bit BE access")
>
> I'm not seeing this issue with allmodconfig on x86_64, could you give
> me some more information on the build environment?

These builds are cross builds using Debian's cross compilers on a ppc64le host.

$ x86_64-linux-gnu-gcc --version
x86_64-linux-gnu-gcc (Debian 13.2.0-7) 13.2.0
$ x86_64-linux-gnu-ld --version
GNU ld (GNU Binutils for Debian) 2.41

--
Cheers,
Stephen Rothwell


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2024-02-26 19:40:14

by Bartosz Golaszewski

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Subject: Re: linux-next: build failure after merge of the gpio-brgl tree

On Sun, 25 Feb 2024 at 02:58, Stephen Rothwell <[email protected]> wrote:
>
> Hi Bartosz,
>
> On Fri, 23 Feb 2024 08:51:10 +0100 Bartosz Golaszewski <[email protected]> wrote:
> >
> > On Fri, 23 Feb 2024 at 04:33, Stephen Rothwell <[email protected]> wrote:
> > >
> > > After merging the gpio-brgl tree, today's linux-next build (x86_64
> > > allmodconfig) failed like this:
> > >
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_write64':
> > > gpio-mmio.c:(.text+0x1489427): undefined reference to `iowrite64'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_read64':
> > > gpio-mmio.c:(.text+0x14894a0): undefined reference to `ioread64'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_write64be':
> > > gpio-mmio.c:(.text+0x1489527): undefined reference to `iowrite64be'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `bgpio_read64be':
> > > gpio-mmio.c:(.text+0x14895a0): undefined reference to `ioread64be'
> > >
> > > Caused by commit
> > >
> > > 36e44186e0ba ("gpio: mmio: Support 64-bit BE access")
> >
> > I'm not seeing this issue with allmodconfig on x86_64, could you give
> > me some more information on the build environment?
>
> These builds are cross builds using Debian's cross compilers on a ppc64le host.
>
> $ x86_64-linux-gnu-gcc --version
> x86_64-linux-gnu-gcc (Debian 13.2.0-7) 13.2.0
> $ x86_64-linux-gnu-ld --version
> GNU ld (GNU Binutils for Debian) 2.41
>
> --
> Cheers,
> Stephen Rothwell

I dropped the offending commit from my for-next branch. Let's revisit
it after the upcoming merge window.

Bart