From 253275c52c8f5848df63f140977ef19800f2dfca Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Date: Wed, 8 Apr 2009 14:12:49 +0200 Subject: [PATCH] tx4939ide: remove wmb() * define CHECK_DMA_MASK * remove use of wmb() Reported-by: Grant Grundler <grundler@google.com> Reviewed-by: Grant Grundler <grundler@google.com> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> --- drivers/ide/tx4939ide.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c index 0040a9a3e26e..2e27fcd41864 100644 --- a/drivers/ide/tx4939ide.c +++ b/drivers/ide/tx4939ide.c @@ -327,15 +327,15 @@ static int tx4939ide_dma_end(ide_drive_t *drive) /* read and clear the INTR & ERROR bits */ dma_stat = tx4939ide_clear_dma_status(base); - wmb(); +#define CHECK_DMA_MASK (ATA_DMA_ACTIVE | ATA_DMA_ERR | ATA_DMA_INTR) /* verify good DMA status */ - if ((dma_stat & (ATA_DMA_INTR | ATA_DMA_ERR | ATA_DMA_ACTIVE)) == 0 && + if ((dma_stat & CHECK_DMA_MASK) == 0 && (ctl & (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST)) == (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST)) /* INT_IDE lost... bug? */ return 0; - return ((dma_stat & (ATA_DMA_INTR | ATA_DMA_ERR | ATA_DMA_ACTIVE)) != + return ((dma_stat & CHECK_DMA_MASK) != ATA_DMA_INTR) ? 0x10 | dma_stat : 0; }