linux-kernel - Re: [PATCH] mfd: simple-mfd-i2c: Fix linker error due to new mfd-core dependency

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Message-ID: <20211104135347.GD3600@sequoia>
Date:   Thu, 4 Nov 2021 08:53:47 -0500
From:   Tyler Hicks <tyhicks@...ux.microsoft.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Alistair Francis <alistair@...stair23.me>,
        linux-kernel@...r.kernel.org,
        Robert Marko <robert.marko@...tura.hr>
Subject: Re: [PATCH] mfd: simple-mfd-i2c: Fix linker error due to new
 mfd-core dependency

On 2021-11-04 08:24:28, Lee Jones wrote:
> On Wed, 03 Nov 2021, Tyler Hicks wrote:
> 
> > Select CONFIG_MFD_CORE from CONFIG_MFD_SIMPLE_MFD_I2C, now that
> > simple-mfd-i2c.c calls devm_mfd_add_devices(), to fix the following
> > linker error:
> > 
> >  ld: drivers/mfd/simple-mfd-i2c.o: in function `simple_mfd_i2c_probe':
> >  simple-mfd-i2c.c:(.text+0x62): undefined reference to `devm_mfd_add_devices'
> >  make: *** [Makefile:1187: vmlinux] Error 1
> > 
> > Fixes: c753ea31781a ("mfd: simple-mfd-i2c: Add support for registering devices via MFD cells")
> > Cc: stable@...r.kernel.org # 5.15.x
> > Signed-off-by: Tyler Hicks <tyhicks@...ux.microsoft.com>
> > ---
> >  drivers/mfd/Kconfig | 1 +
> >  1 file changed, 1 insertion(+)
> 
> Looks like the same change that has already been applied.
> 
> Could you rebase on top of the MFD tree please?

Ah, that commit wasn't in for-mfd-next when I wrote up this patch
yesterday.

I think that the Fixes line in that patch is wrong as I didn't see this
issue in 5.10 and reverting c753ea31781a fixes the build failure.

Tyler

> 
> -- 
> Lee Jones [李琼斯]
> Senior Technical Lead - Developer Services
> Linaro.org │ Open source software for Arm SoCs
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