linux-kernel - Re: [PATCH v2] of: reserved_mem: Restructure call site for dma_contiguous_early

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Message-ID: <202507191943.suIkiLRK-lkp@intel.com>
Date: Sat, 19 Jul 2025 19:28:52 +0800
From: kernel test robot <lkp@...el.com>
To: Oreoluwa Babatunde <oreoluwa.babatunde@....qualcomm.com>,
	robh@...nel.org, m.szyprowski@...sung.com, robin.murphy@....com
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	saravanak@...gle.com, quic_obabatun@...cinc.com,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	iommu@...ts.linux.dev, william.zhang@...adcom.com,
	kernel@....qualcomm.com, will@...nel.org, djakov@...nel.org,
	Oreoluwa Babatunde <oreoluwa.babatunde@....qualcomm.com>
Subject: Re: [PATCH v2] of: reserved_mem: Restructure call site for
 dma_contiguous_early_fixup()

Hi Oreoluwa,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on linus/master v6.16-rc6 next-20250718]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Oreoluwa-Babatunde/of-reserved_mem-Restructure-call-site-for-dma_contiguous_early_fixup/20250719-074651
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20250718234504.2702128-1-oreoluwa.babatunde%40oss.qualcomm.com
patch subject: [PATCH v2] of: reserved_mem: Restructure call site for dma_contiguous_early_fixup()
config: i386-buildonly-randconfig-005-20250719 (https://download.01.org/0day-ci/archive/20250719/202507191943.suIkiLRK-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250719/202507191943.suIkiLRK-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/202507191943.suIkiLRK-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/of/of_reserved_mem.c:152:1: warning: no previous prototype for function 'dma_contiguous_early_fixup' [-Wmissing-prototypes]
     152 | dma_contiguous_early_fixup(phys_addr_t base, unsigned long size)
         | ^
   drivers/of/of_reserved_mem.c:151:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
     151 | void __weak
         | ^
         | static 
   1 warning generated.


vim +/dma_contiguous_early_fixup +152 drivers/of/of_reserved_mem.c

   150	
   151	void __weak
 > 152	dma_contiguous_early_fixup(phys_addr_t base, unsigned long size)
   153	{
   154	}
   155	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki