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

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Message-ID: <20250904092319.GG2764654@google.com>
Date: Thu, 4 Sep 2025 10:23:19 +0100
From: Lee Jones <lee@...nel.org>
To: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
	Alexander Stein <alexander.stein@...tq-group.com>,
	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 mfd tree

On Thu, 04 Sep 2025, Bartosz Golaszewski wrote:

> On Thu, 4 Sept 2025 at 08:30, Lee Jones <lee@...nel.org> wrote:
> >
> > On Thu, 04 Sep 2025, Stephen Rothwell wrote:
> >
> > > Hi all,
> > >
> > > After merging the mfd tree, today's linux-next build (x86_64 allmodconfig)
> > > failed like this:
> > >
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_gpio_get':
> > > gpio-stmpe.c:(.text+0x21a7c29): undefined reference to `stmpe_reg_read'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_gpio_get_direction':
> > > gpio-stmpe.c:(.text+0x21a7db2): undefined reference to `stmpe_reg_read'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_gpio_irq_sync_unlock':
> > > gpio-stmpe.c:(.text+0x21a8166): undefined reference to `stmpe_reg_write'
> > > x86_64-linux-gnu-ld: gpio-stmpe.c:(.text+0x21a82ef): undefined reference to `stmpe_reg_read'
> > > x86_64-linux-gnu-ld: gpio-stmpe.c:(.text+0x21a8372): undefined reference to `stmpe_reg_read'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_gpio_irq':
> > > gpio-stmpe.c:(.text+0x21a8c27): undefined reference to `stmpe_block_read'
> > > x86_64-linux-gnu-ld: gpio-stmpe.c:(.text+0x21a8f05): undefined reference to `stmpe_reg_write'
> > > x86_64-linux-gnu-ld: gpio-stmpe.c:(.text+0x21a8f89): undefined reference to `stmpe_reg_write'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_gpio_disable':
> > > gpio-stmpe.c:(.text+0x21a91dc): undefined reference to `stmpe_disable'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_gpio_set':
> > > gpio-stmpe.c:(.text+0x21a93a4): undefined reference to `stmpe_reg_write'
> > > x86_64-linux-gnu-ld: gpio-stmpe.c:(.text+0x21a941e): undefined reference to `stmpe_set_bits'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_gpio_direction_output':
> > > gpio-stmpe.c:(.text+0x21a95a4): undefined reference to `stmpe_set_bits'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_gpio_direction_input':
> > > gpio-stmpe.c:(.text+0x21a9705): undefined reference to `stmpe_set_bits'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_gpio_request':
> > > gpio-stmpe.c:(.text+0x21a983e): undefined reference to `stmpe_set_altfunc'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_dbg_show_one':
> > > gpio-stmpe.c:(.text+0x21a99c0): undefined reference to `stmpe_reg_read'
> > > x86_64-linux-gnu-ld: gpio-stmpe.c:(.text+0x21a9b8c): undefined reference to `stmpe_reg_read'
> > > x86_64-linux-gnu-ld: gpio-stmpe.c:(.text+0x21a9bb1): undefined reference to `stmpe_reg_read'
> > > x86_64-linux-gnu-ld: gpio-stmpe.c:(.text+0x21a9c61): undefined reference to `stmpe_reg_read'
> > > x86_64-linux-gnu-ld: gpio-stmpe.c:(.text+0x21a9e6c): undefined reference to `stmpe_reg_read'
> > > x86_64-linux-gnu-ld: vmlinux.o: in function `stmpe_gpio_probe':
> > > gpio-stmpe.c:(.text+0x21aa5b2): undefined reference to `stmpe_enable'
> > > x86_64-linux-gnu-ld: gpio-stmpe.c:(.text+0x21aa83e): undefined reference to `stmpe_disable'
> > >
> > > Presumably caused by commit
> > >
> > >   e160dd0ac8c3 ("mfd: stmpe: Allow building as module")
> >
> > Okay, I have removed this patch until it can be better tested.
> >
> > > I have used the mfd tree from next-20250903 for today.
> > >
> > > Note that commit
> > >
> > >  03db20aaa3ba ("gpio: stmpe: Allow to compile as a module")
> > >
> > > is in the gpio-brgl tree which has not been merged into linux-next at
> > > this point.
> >
> > Okay, perhaps these need to go in together then.
> >
> > Thanks Stephen.
> >
> 
> I can take it through the GPIO tree if you will and set up an
> immutable branch for you. Or not if the potential conflict is minimal.

An IB would be good.  Thank you.

-- 
Lee Jones [李琼斯]