On Tue, Sep 23, 2014 at 04:07:34PM +0200, Boris BREZILLON wrote: > Add a new function to move bits (not bytes) from a memory region to > another one. > This function is similar to memmove except it acts at bit level. > This function is needed to implement GPMI raw access functions, given the > fact that ECC engine does not pad ECC bits to the next byte boundary. sorry for not comment your v2 patch set.
> > Signed-off-by: Boris BREZILLON <[email protected]> > --- > drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 88 > ++++++++++++++++++++++++++++++++++ > drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 4 ++ > 2 files changed, 92 insertions(+) > > diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c > b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c > index 87e658c..e2f706a 100644 > --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c > +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c > @@ -1353,3 +1353,91 @@ int gpmi_read_page(struct gpmi_nand_data *this, > set_dma_type(this, DMA_FOR_READ_ECC_PAGE); > return start_dma_with_bch_irq(this, desc); > } > + > +void gpmi_move_bits(u8 *dst, size_t dst_bit_off, > + const u8 *src, size_t src_bit_off, > + size_t nbits) we can simplify the code. We could use the bytes to replace the @nbits. The chunk data is always byte aligned. Btw: please add more comments in this function. thanks Huang Shijie -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
