linux-kernel - RE: drivers/mmc/host/renesas_sdhi_core.c:951: undefined reference to `rdev_get

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Message-ID:
 <TY3PR01MB11346D7FE2EC7FA3631C48A0C86A32@TY3PR01MB11346.jpnprd01.prod.outlook.com>
Date: Sat, 29 Mar 2025 07:24:12 +0000
From: Biju Das <biju.das.jz@...renesas.com>
To: Wolfram Sang <wsa-dev@...g-engineering.com>
CC: kernel test robot <lkp@...el.com>, "oe-kbuild-all@...ts.linux.dev"
	<oe-kbuild-all@...ts.linux.dev>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, Ulf Hansson <ulf.hansson@...aro.org>
Subject: RE: drivers/mmc/host/renesas_sdhi_core.c:951: undefined reference to
 `rdev_get_drvdata'

Hi Wolfram,

Thanks for the feedback.

> -----Original Message-----
> From: Wolfram Sang <wsa-dev@...g-engineering.com>
> Sent: 29 March 2025 07:17
> Subject: Re: drivers/mmc/host/renesas_sdhi_core.c:951: undefined reference to `rdev_get_drvdata'
> 
> 
> > CONFIG_REGULATOR is not enabled in arm-randconfig-r111-20250328 that
> > is leading to this build issue.
> >
> > I will send a fix by "select REGULATOR" in config MMC_SDHI
> 
> What about using MMC_SDHI_INTERNAL_DMAC? So we leave out at least older SDHI instances. Ideally, we
> would say "select ... if <family>" but this will easily be missed in updates. Maybe the above is a
> fair compromise.
> Those systems will likely have regulators enabled anyhow.

The changes were done in SDHI core (renesas_sdhi_core.c).

Like this, if a random config in that architecture has CONFIG_REGULATOR undefined
will lead to the same error.

Cheers,
Biju