Re: [PATCH v4 2/2] SMAF: add CMA allocator

From: kbuild test robot
Date: Mon Oct 05 2015 - 07:52:13 EST


Hi Benjamin,

[auto build test WARNING on v4.3-rc4 -- if it's inappropriate base, please ignore]

config: sparc-allmodconfig (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
# save the attached .config to linux build tree
make.cross ARCH=sparc

All warnings (new ones prefixed by >>):

drivers/smaf/smaf-cma.c: In function 'smaf_kmap_atomic':
>> drivers/smaf/smaf-cma.c:118:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
return (void *)info->paddr + offset;
^

vim +118 drivers/smaf/smaf-cma.c

102 info->size, &attrs);
103
104 return ret;
105 }
106
107 static void *smaf_cma_vmap(struct dma_buf *dmabuf)
108 {
109 struct smaf_cma_buffer_info *info = dmabuf->priv;
110
111 return info->vaddr;
112 }
113
114 static void *smaf_kmap_atomic(struct dma_buf *dmabuf, unsigned long offset)
115 {
116 struct smaf_cma_buffer_info *info = dmabuf->priv;
117
> 118 return (void *)info->paddr + offset;
119 }
120
121 static struct dma_buf_ops smaf_cma_ops = {
122 .map_dma_buf = smaf_cma_map,
123 .unmap_dma_buf = smaf_cma_unmap,
124 .mmap = smaf_cma_mmap,
125 .release = smaf_cma_release,
126 .kmap_atomic = smaf_kmap_atomic,

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