According to Documentation/memory-barriers.txt, a memory barrier is put in place by wait_event_*() Signed-off-by: Eli Billauer <eli.billauer@xxxxxxxxx> --- drivers/staging/xillybus/xillybus_core.c | 3 --- 1 files changed, 0 insertions(+), 3 deletions(-) diff --git a/drivers/staging/xillybus/xillybus_core.c b/drivers/staging/xillybus/xillybus_core.c index 0214009..93a3c61 100644 --- a/drivers/staging/xillybus/xillybus_core.c +++ b/drivers/staging/xillybus/xillybus_core.c @@ -640,7 +640,6 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint) iowrite32(1 | (3 << 24), /* Opcode 3 for channel 0 = Send IDT */ endpoint->registers + fpga_buf_ctrl_reg); - mmiowb(); /* Just to appear safe */ wait_event_interruptible_timeout(channel->wr_wait, (!channel->wr_sleepy), @@ -1986,7 +1985,6 @@ static int xilly_quiesce(struct xilly_endpoint *endpoint) wmb(); /* Make sure idtlen is set before sending command */ iowrite32((u32) (endpoint->dma_using_dac & 0x0001), endpoint->registers + fpga_dma_control_reg); - mmiowb(); wait_event_interruptible_timeout(endpoint->ep_wait, (endpoint->idtlen >= 0), @@ -2055,7 +2053,6 @@ int xillybus_endpoint_discovery(struct xilly_endpoint *endpoint) */ iowrite32((u32) (endpoint->dma_using_dac & 0x0001), endpoint->registers + fpga_dma_control_reg); - mmiowb(); wait_event_interruptible_timeout(endpoint->ep_wait, (endpoint->idtlen >= 0), -- 1.7.2.3 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
