tree:   git://git.cmpxchg.org/linux-mmotm.git master
head:   5d74e104f9872d5fe45c56f5cafd1fc44c6f2676
commit: 6dd3adc8b59b55c1522eeebb68d92649f3ad4b83 [206/445] drivers: dma-contiguous: add initialization from device tree
config: arm-omap2plus_defconfig (attached as .config)
reproduce:
  wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
  chmod +x ~/bin/make.cross
  git checkout 6dd3adc8b59b55c1522eeebb68d92649f3ad4b83
  # save the attached .config to linux build tree
  make.cross ARCH=arm 

All warnings:

>> drivers/base/dma-contiguous.c:243:2: warning: initialization from incompatible pointer type
     .device_init = rmem_cma_device_init,
     ^
>> drivers/base/dma-contiguous.c:243:2: warning: (near initialization for 'rmem_cma_ops.device_init')

vim +243 drivers/base/dma-contiguous.c

   227	{
   228		struct cma *cma = rmem->priv;
   229		if (!cma)
   230			return -ENODEV;
   231	
   232		dev_set_cma_area(dev, cma);
   233		return 0;
   234	}
   235	
   236	static void rmem_cma_device_release(struct reserved_mem *rmem,
   237					    struct device *dev)
   238	{
   239		dev_set_cma_area(dev, NULL);
   240	}
   241	
   242	static const struct reserved_mem_ops rmem_cma_ops = {
 > 243		.device_init	= rmem_cma_device_init,
   244		.device_release = rmem_cma_device_release,
   245	};
   246	
   247	static int __init rmem_cma_setup(struct reserved_mem *rmem)
   248	{
   249		phys_addr_t align = PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order);
   250		phys_addr_t mask = align - 1;
   251		unsigned long node = rmem->fdt_node;

---
0-DAY kernel build testing backend              Open Source Technology Center
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