linux-kernel - Re: [PATCH v3 1/3] m68k: coldfire: Mark platform device resource arrays as const

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Message-ID: <aSXemx7nWJJFRWwT@lizhi-Precision-Tower-5810>
Date: Tue, 25 Nov 2025 11:51:39 -0500
From: Frank Li <Frank.li@....com>
To: Jean-Michel Hautbois <jeanmichel.hautbois@...eli.org>
Cc: Greg Ungerer <gerg@...ux-m68k.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Olivia Mackall <olivia@...enic.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, oe-kbuild-all@...ts.linux.dev,
	linux-m68k@...ts.linux-m68k.org, linux-kernel@...r.kernel.org,
	linux-crypto@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 1/3] m68k: coldfire: Mark platform device resource
 arrays as const

On Tue, Nov 25, 2025 at 08:53:22AM +0100, Jean-Michel Hautbois wrote:
> On Tue, Nov 25, 2025 at 01:48:24AM +0800, kernel test robot wrote:
> > Hi Jean-Michel,
> >
> > kernel test robot noticed the following build warnings:
> >
> > [auto build test WARNING on ac3fd01e4c1efce8f2c054cdeb2ddd2fc0fb150d]
> >
> > url:    https://github.com/intel-lab-lkp/linux/commits/Jean-Michel-Hautbois/m68k-coldfire-Mark-platform-device-resource-arrays-as-const/20251124-210737
> > base:   ac3fd01e4c1efce8f2c054cdeb2ddd2fc0fb150d
> > patch link:    https://lore.kernel.org/r/20251124-b4-m5441x-add-rng-support-v3-1-f447251dad27%40yoseli.org
> > patch subject: [PATCH v3 1/3] m68k: coldfire: Mark platform device resource arrays as const
> > config: m68k-allnoconfig (https://download.01.org/0day-ci/archive/20251125/202511250103.RMNoU3xH-lkp@intel.com/config)
> > compiler: m68k-linux-gcc (GCC) 15.1.0
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251125/202511250103.RMNoU3xH-lkp@intel.com/reproduce)
> >
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > the same patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <lkp@...el.com>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/202511250103.RMNoU3xH-lkp@intel.com/
> >
> > All warnings (new ones prefixed by >>):
> >
> > >> arch/m68k/coldfire/device.c:141:35: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
> >      141 |         .resource               = mcf_fec0_resources,
> >          |                                   ^~~~~~~~~~~~~~~~~~
> >
> >
> > vim +/const +141 arch/m68k/coldfire/device.c
>
> Frank, I mentionned this warning in v2, do you have a suggestion ?

Maybe defer add const until platform_device change define.

Frank

>
> Thanks !
> JM
>
> >
> > b7ce7f0d0efc1a arch/m68k/platform/coldfire/device.c Greg Ungerer      2011-12-24  136
> > b7ce7f0d0efc1a arch/m68k/platform/coldfire/device.c Greg Ungerer      2011-12-24  137  static struct platform_device mcf_fec0 = {
> > bea8bcb12da09b arch/m68k/platform/coldfire/device.c Steven King       2012-06-06  138  	.name			= FEC_NAME,
> > b7ce7f0d0efc1a arch/m68k/platform/coldfire/device.c Greg Ungerer      2011-12-24  139  	.id			= 0,
> > b7ce7f0d0efc1a arch/m68k/platform/coldfire/device.c Greg Ungerer      2011-12-24  140  	.num_resources		= ARRAY_SIZE(mcf_fec0_resources),
> > b7ce7f0d0efc1a arch/m68k/platform/coldfire/device.c Greg Ungerer      2011-12-24 @141  	.resource		= mcf_fec0_resources,
> > f61e64310b7573 arch/m68k/coldfire/device.c          Greg Ungerer      2018-03-28  142  	.dev = {
> > f61e64310b7573 arch/m68k/coldfire/device.c          Greg Ungerer      2018-03-28  143  		.dma_mask		= &mcf_fec0.dev.coherent_dma_mask,
> > f61e64310b7573 arch/m68k/coldfire/device.c          Greg Ungerer      2018-03-28  144  		.coherent_dma_mask	= DMA_BIT_MASK(32),
> > f61e64310b7573 arch/m68k/coldfire/device.c          Greg Ungerer      2018-03-28  145  		.platform_data		= FEC_PDATA,
> > f61e64310b7573 arch/m68k/coldfire/device.c          Greg Ungerer      2018-03-28  146  	}
> > b7ce7f0d0efc1a arch/m68k/platform/coldfire/device.c Greg Ungerer      2011-12-24  147  };
> > 63a24cf8cc330e arch/m68k/coldfire/device.c          Antonio Quartulli 2024-10-29  148  #endif /* MCFFEC_BASE0 */
> > b7ce7f0d0efc1a arch/m68k/platform/coldfire/device.c Greg Ungerer      2011-12-24  149
> >
> > --
> > 0-DAY CI Kernel Test Service
> > https://github.com/intel/lkp-tests/wiki
>