On Fri, 30 Jan 2015 16:14:30 -0800, Peter Oh wrote: > Using ioread() to perform draining write buffer is excessive. > Use compact API, mb(), that intended to be used for the case. > It reduces total 14 CPU clocks per interrupt. > > Signed-off-by: Peter Oh <poh@xxxxxxxxxxxxxxxx> I have no idea what the code does but this change looks suspicious. Usually the point of ioread() is to flush the interconnect buffers while mb() ensures ordering only from the CPU perspective. Could you provide the reason *why* flushing buffers is unnecessary in the commit message? -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
