linux-kernel - Re: [PATCH] mfd: tps6594: Explicitly include bitfield.h

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Message-ID: <20250911151100.GQ9224@google.com>
Date: Thu, 11 Sep 2025 16:11:00 +0100
From: Lee Jones <lee@...nel.org>
To: Michael Walle <mwalle@...nel.org>
Cc: Nathan Chancellor <nathan@...nel.org>,
	Job Sava <jsava@...ticallink.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mfd: tps6594: Explicitly include bitfield.h

On Fri, 05 Sep 2025, Michael Walle wrote:

> Hi Nathan,
> 
> On Fri Sep 5, 2025 at 3:26 AM CEST, Nathan Chancellor wrote:
> > After a recent change that started using FIELD_GET() in tps6594-core.c,
> > there is an error when bitfield.h is not implicitly included, such as
> > when building allmodconfig for ARCH=hexagon:
> 
> Thanks! I was already in a discussion with Lee about how to handle
> that.
> 
> >   drivers/mfd/tps6594-core.c:767:7: error: call to undeclared function 'FIELD_GET'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
> >     767 |                 if (FIELD_GET(TPS65224_MASK_EN_PB_VSENSE_CONFIG, pwr_on) == TPS65224_EN_SEL_PB ||
> >         |                     ^
> >
> > Explicitly include bitfield.h to resolve the errors.
> >
> > Fixes: d766ca01c208 ("mfd: tps6594: Add power button functionality")
> > Signed-off-by: Nathan Chancellor <nathan@...nel.org>
> 
> In any case:
> Reviewed-by: Michael Walle <mwalle@...nel.org>
> 
> Also,
> Reported-by: kernel test robot <lkp@...el.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202509032356.LGa5hygM-lkp@intel.com/
> 
> > ---
> > It looks like this should go into ib-mfd-input-6.18.
> 
> Yeah probably. Lee, is that possible?

Hold my beer!

-- 
Lee Jones [李琼斯]