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SubjectRe: [PATCH v4 1/2] dmaengine: avalon: Intel Avalon-MM DMA Interface for PCIe
Hi Alexander,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.4-rc5]
[cannot apply to next-20191031]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Alexander-Gordeev/dmaengine-avalon-Intel-Avalon-MM-DMA-Interface-for-PCIe/20191102-044059
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 0dbe6cb8f7e05bc9611602ef45980a6c57b245a3
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-6-g57f8611-dirty
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/dma/avalon/avalon-hw.c:17:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] src_lo @@ got restrunsigned int [usertype] src_lo @@
>> drivers/dma/avalon/avalon-hw.c:17:22: sparse: expected unsigned int [usertype] src_lo
>> drivers/dma/avalon/avalon-hw.c:17:22: sparse: got restricted __le32 [usertype]
>> drivers/dma/avalon/avalon-hw.c:18:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] src_hi @@ got restrunsigned int [usertype] src_hi @@
>> drivers/dma/avalon/avalon-hw.c:18:22: sparse: expected unsigned int [usertype] src_hi
drivers/dma/avalon/avalon-hw.c:18:22: sparse: got restricted __le32 [usertype]
>> drivers/dma/avalon/avalon-hw.c:19:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] dst_lo @@ got restrunsigned int [usertype] dst_lo @@
>> drivers/dma/avalon/avalon-hw.c:19:22: sparse: expected unsigned int [usertype] dst_lo
drivers/dma/avalon/avalon-hw.c:19:22: sparse: got restricted __le32 [usertype]
>> drivers/dma/avalon/avalon-hw.c:20:22: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] dst_hi @@ got restrunsigned int [usertype] dst_hi @@
>> drivers/dma/avalon/avalon-hw.c:20:22: sparse: expected unsigned int [usertype] dst_hi
drivers/dma/avalon/avalon-hw.c:20:22: sparse: got restricted __le32 [usertype]
>> drivers/dma/avalon/avalon-hw.c:21:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] ctl_dma_len @@ got restrunsigned int [usertype] ctl_dma_len @@
>> drivers/dma/avalon/avalon-hw.c:21:27: sparse: expected unsigned int [usertype] ctl_dma_len
drivers/dma/avalon/avalon-hw.c:21:27: sparse: got restricted __le32 [usertype]
>> drivers/dma/avalon/avalon-hw.c:22:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int @@ got restricted __le32unsigned int @@
>> drivers/dma/avalon/avalon-hw.c:22:27: sparse: expected unsigned int
drivers/dma/avalon/avalon-hw.c:22:27: sparse: got restricted __le32 [usertype]
drivers/dma/avalon/avalon-hw.c:23:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int @@ got restricted __le32unsigned int @@
drivers/dma/avalon/avalon-hw.c:23:27: sparse: expected unsigned int
drivers/dma/avalon/avalon-hw.c:23:27: sparse: got restricted __le32 [usertype]
drivers/dma/avalon/avalon-hw.c:24:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int @@ got restricted __le32unsigned int @@
drivers/dma/avalon/avalon-hw.c:24:27: sparse: expected unsigned int
drivers/dma/avalon/avalon-hw.c:24:27: sparse: got restricted __le32 [usertype]
--
>> drivers/dma/avalon/avalon-core.c:346:27: sparse: sparse: mixing different enum types:
>> drivers/dma/avalon/avalon-core.c:346:27: sparse: unsigned int enum dma_transfer_direction
>> drivers/dma/avalon/avalon-core.c:346:27: sparse: unsigned int enum dma_data_direction

vim +17 drivers/dma/avalon/avalon-hw.c

13
14 static void setup_desc(struct dma_desc *desc, u32 desc_id,
15 u64 dest, u64 src, u32 size)
16 {
> 17 desc->src_lo = cpu_to_le32(src & 0xfffffffful);
> 18 desc->src_hi = cpu_to_le32((src >> 32));
> 19 desc->dst_lo = cpu_to_le32(dest & 0xfffffffful);
> 20 desc->dst_hi = cpu_to_le32((dest >> 32));
> 21 desc->ctl_dma_len = cpu_to_le32((size >> 2) | (desc_id << 18));
> 22 desc->reserved[0] = cpu_to_le32(0x0);
23 desc->reserved[1] = cpu_to_le32(0x0);
24 desc->reserved[2] = cpu_to_le32(0x0);
25 }
26

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation

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