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From: kernel test robot <lkp@intel.com>
To: kaixuxia@tencent.com, frankjpliu@tencent.com, kasong@tencent.com,
	sagazchen@tencent.com, kernelxing@tencent.com,
	aurelianliu@tencent.com, deshengwu@tencent.com,
	flyingpeng@tencent.com, jason.zeng@intel.com, wu.zheng@intel.com,
	yingbao.jia@intel.com, pei.p.jia@intel.com
Cc: oe-kbuild-all@lists.linux.dev
Subject: [opencloudos:linux-5.4/lts/5.4.119-20.0009.spr 1010/2443] kernel/dma/mapping.c:557:29: sparse: sparse: macro "alloc_pages" passed 5 arguments, but takes just 2
Date: Fri, 27 Sep 2024 10:32:03 +0800	[thread overview]
Message-ID: <202409271048.s3ChTLGD-lkp@intel.com> (raw)

tree:   https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git linux-5.4/lts/5.4.119-20.0009.spr
head:   9d665359e14c559b74a94a55057e9c0fbd31a81a
commit: 0764432a5ada7a09ce36b0e980ec40340fae2a30 [1010/2443] dma-mapping: add a new dma_alloc_pages API
config: x86_64-randconfig-122-20240925 (https://download.01.org/0day-ci/archive/20240927/202409271048.s3ChTLGD-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240927/202409271048.s3ChTLGD-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409271048.s3ChTLGD-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> kernel/dma/mapping.c:557:29: sparse: sparse: macro "alloc_pages" passed 5 arguments, but takes just 2

vim +/alloc_pages +557 kernel/dma/mapping.c

   541	
   542	struct page *dma_alloc_pages(struct device *dev, size_t size,
   543			dma_addr_t *dma_handle, enum dma_data_direction dir, gfp_t gfp)
   544	{
   545		const struct dma_map_ops *ops = get_dma_ops(dev);
   546		struct page *page;
   547	
   548		if (WARN_ON_ONCE(!dev->coherent_dma_mask))
   549			return NULL;
   550		if (WARN_ON_ONCE(gfp & (__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM)))
   551			return NULL;
   552	
   553		size = PAGE_ALIGN(size);
   554		if (dma_alloc_direct(dev, ops))
   555			page = dma_direct_alloc_pages(dev, size, dma_handle, dir, gfp);
   556		else if (ops->alloc_pages)
 > 557			page = ops->alloc_pages(dev, size, dma_handle, dir, gfp);
   558		else
   559			return NULL;
   560	
   561		debug_dma_map_page(dev, page, 0, size, dir, *dma_handle);
   562	
   563		return page;
   564	}
   565	EXPORT_SYMBOL_GPL(dma_alloc_pages);
   566	

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

                 reply	other threads:[~2024-09-27  2:32 UTC|newest]

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