Re: [PATCH 4/4] mtd: provide helper to prepare buffers for DMA operations

2016-03-31 Thread kbuild test robot
Hi Boris, [auto build test ERROR on spi/for-next] [also build test ERROR on v4.6-rc1 next-20160331] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url:

[PATCH 4/4] mtd: provide helper to prepare buffers for DMA operations

2016-03-31 Thread Boris Brezillon
Some NAND controller drivers are making use of DMA to transfer data from the controller to the buffer passed by the MTD user. Provide a generic mtd_map/unmap_buf() implementation to avoid open coded (and sometime erroneous) implementations. Signed-off-by: Boris Brezillon