On Fri, 2017-05-05 at 19:55 +0100, Jonathan Cameron wrote: > On 05/05/17 07:31, Jan Kiszka wrote: > > + > > + /* > > + * SPI message buffers: > > + * tx_buf: |C0|C1|C2|C3|C4|C5|C6|C7|XX| > > + * rx_buf: |XX|R0|R1|R2|R3|R4|R5|R6|R7|tt|tt|tt|tt| > > + * > > + * tx_buf: 8 channel read commands, plus 1 dummy command > > + * rx_buf: 1 dummy response, 8 channel responses, plus 64- > > bit timestamp > > + */ > > + __be16 rx_buf[13] > > ____cacheline_aligned; > > + __be16 tx_buf[9] > > ____cacheline_aligned; > > I would have thought the SPI dma wouldn't take itself out so you > should be > good with just the one cacheline_aligned? Maybe I'm missing > something. It was my idea for sake of consistency. Just to explicitly show that buffers a cache aligned. If you insist to remove one, it's your call at the end ;-) -- Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
