On Sat, May 28, 2016 at 05:51:52PM +0800, Keguang Zhang wrote: > diff --git a/arch/mips/include/asm/mach-loongson32/nand.h b/arch/mips/include/asm/mach-loongson32/nand.h > index e274912..a1f8704 100644 > --- a/arch/mips/include/asm/mach-loongson32/nand.h > +++ b/arch/mips/include/asm/mach-loongson32/nand.h > @@ -21,10 +21,9 @@ struct plat_ls1x_nand { > > int hold_cycle; > int wait_cycle; > + bool (*dma_filter)(struct dma_chan *chan, void *param); > }; > > extern struct plat_ls1x_nand ls1b_nand_pdata; > > -bool ls1x_dma_filter_fn(struct dma_chan *chan, void *param); > - > #endif /* __ASM_MACH_LOONGSON32_NAND_H */ > diff --git a/arch/mips/loongson32/ls1b/board.c b/arch/mips/loongson32/ls1b/board.c > index 38a1d40..0a57337 100644 > --- a/arch/mips/loongson32/ls1b/board.c > +++ b/arch/mips/loongson32/ls1b/board.c > @@ -38,6 +38,7 @@ struct plat_ls1x_nand ls1x_nand_pdata = { > .nr_parts = ARRAY_SIZE(ls1x_nand_parts), > .hold_cycle = 0x2, > .wait_cycle = 0xc, > + .dma_filter = ls1x_dma_filter, > }; Without the DMA driver which Vinod has requested changes for this patch will result in build errors. It will also result in a build error if CONFIG_LOONGSON1_DMA is disabled. Ralf