linux-kernel - Re: [PATCH 30/46] of: reserved_mem: Add code to use unflattened DT for reserved

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Message-ID: <202401281304.tsu89Kcm-lkp@intel.com>
Date: Sun, 28 Jan 2024 14:06:05 +0800
From: kernel test robot <lkp@...el.com>
To: Oreoluwa Babatunde <quic_obabatun@...cinc.com>, catalin.marinas@....com,
	will@...nel.org, robh+dt@...nel.org, frowand.list@...il.com,
	vgupta@...nel.org, arnd@...db.de, olof@...om.net, soc@...nel.org,
	guoren@...nel.org, monstr@...str.eu, palmer@...belt.com,
	aou@...s.berkeley.edu, dinguyen@...nel.org, chenhuacai@...nel.org,
	tsbogend@...ha.franken.de, jonas@...thpole.se,
	stefan.kristiansson@...nalahti.fi, shorne@...il.com,
	mpe@...erman.id.au, ysato@...rs.sourceforge.jp, dalias@...c.org,
	glaubitz@...sik.fu-berlin.de, richard@....at,
	anton.ivanov@...bridgegreys.com, johannes@...solutions.net,
	chris@...kel.net, jcmvbkbc@...il.com
Cc: oe-kbuild-all@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 30/46] of: reserved_mem: Add code to use unflattened DT
 for reserved_mem nodes

Hi Oreoluwa,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on arm64/for-next/core vgupta-arc/for-curr powerpc/next powerpc/fixes jcmvbkbc-xtensa/xtensa-for-next linus/master v6.8-rc1 next-20240125]
[cannot apply to vgupta-arc/for-next]
[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-Change-the-order-that-reserved_mem-regions-are-stored/20240127-081735
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20240126235425.12233-31-quic_obabatun%40quicinc.com
patch subject: [PATCH 30/46] of: reserved_mem: Add code to use unflattened DT for reserved_mem nodes
config: arm-randconfig-r133-20240127 (https://download.01.org/0day-ci/archive/20240128/202401281304.tsu89Kcm-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20240128/202401281304.tsu89Kcm-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/202401281304.tsu89Kcm-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> kernel/dma/coherent.c:371:34: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned long node @@     got struct device_node *node @@
   kernel/dma/coherent.c:371:34: sparse:     expected unsigned long node
   kernel/dma/coherent.c:371:34: sparse:     got struct device_node *node
   kernel/dma/coherent.c:378:33: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned long node @@     got struct device_node *node @@
   kernel/dma/coherent.c:378:33: sparse:     expected unsigned long node
   kernel/dma/coherent.c:378:33: sparse:     got struct device_node *node

vim +371 kernel/dma/coherent.c

7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13  362  
7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13  363  static int __init rmem_dma_setup(struct reserved_mem *rmem)
7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13  364  {
b81d457b174810 kernel/dma/coherent.c       Oreoluwa Babatunde 2024-01-26  365  	struct device_node *node = rmem->dev_node;
7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13  366  
b81d457b174810 kernel/dma/coherent.c       Oreoluwa Babatunde 2024-01-26  367  	if (of_get_property(node, "reusable", NULL))
7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13  368  		return -EINVAL;
7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13  369  
7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13  370  #ifdef CONFIG_ARM
7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13 @371  	if (!of_get_flat_dt_prop(node, "no-map", NULL)) {
7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13  372  		pr_err("Reserved memory: regions without no-map are not yet supported\n");
7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13  373  		return -EINVAL;
7bfa5ab6fa1b18 drivers/base/dma-coherent.c Marek Szyprowski   2014-10-13  374  	}
70d6aa0ecfed25 kernel/dma/coherent.c       Christoph Hellwig  2021-06-24  375  #endif
93228b44c33a57 drivers/base/dma-coherent.c Vladimir Murzin    2017-06-26  376  

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