Re: [PATCH] spi: spidev: Use separate TX and RX bounce buffers

2014-10-13 Thread Ray Jui
On 10/13/2014 4:07 AM, Mark Brown wrote: On Thu, Oct 09, 2014 at 11:19:25AM -0700, Ray Jui wrote: By using separate TX and RX bounce buffers, we avoid potential cache flush and invalidation sequence issue that may be encountered when a single bounce buffer is shared between TX and RX Applied,

Re: [PATCH] spi: spidev: Use separate TX and RX bounce buffers

2014-10-13 Thread Mark Brown
On Thu, Oct 09, 2014 at 11:19:25AM -0700, Ray Jui wrote: > By using separate TX and RX bounce buffers, we avoid potential cache > flush and invalidation sequence issue that may be encountered when a > single bounce buffer is shared between TX and RX Applied, thanks. signature.asc Description: Di

[PATCH] spi: spidev: Use separate TX and RX bounce buffers

2014-10-09 Thread Ray Jui
By using separate TX and RX bounce buffers, we avoid potential cache flush and invalidation sequence issue that may be encountered when a single bounce buffer is shared between TX and RX Signed-off-by: Ray Jui Reviewed-by: JD (Jiandong) Zheng --- drivers/spi/spidev.c | 79