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From: "Reimar Döffinger" <Reimar.Doeffinger@gmx.de>
To: Damien Le Moal <Damien.LeMoal@wdc.com>,
	linux-ide@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
	hch@infradead.org, Paul Menzel <pmenzel@molgen.mpg.de>
Subject: [PATCH 6/6] pata_radisys: fix checking of DMA state
Date: Tue, 12 Oct 2021 08:27:49 +0200	[thread overview]
Message-ID: <20211012062749.4728-7-Reimar.Doeffinger@gmx.de> (raw)
In-Reply-To: <20211012062749.4728-1-Reimar.Doeffinger@gmx.de>

Checking if DMA is enabled should be done via the
ata_dma_enabled helper function, since the init state
0xff indicates disabled.
Change based on code review, not tested due to lack of hardware.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
---
 drivers/ata/pata_radisys.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c
index 8fde4a86401b..3aca8fe3fdb6 100644
--- a/drivers/ata/pata_radisys.c
+++ b/drivers/ata/pata_radisys.c
@@ -172,8 +172,8 @@ static unsigned int radisys_qc_issue(struct ata_queued_cmd *qc)
 
 	if (adev != ap->private_data) {
 		/* UDMA timing is not shared */
-		if (adev->dma_mode < XFER_UDMA_0) {
-			if (adev->dma_mode)
+		if (adev->dma_mode < XFER_UDMA_0 || !ata_dma_enabled(adev)) {
+			if (ata_dma_enabled(adev))
 				radisys_set_dmamode(ap, adev);
 			else if (adev->pio_mode)
 				radisys_set_piomode(ap, adev);
-- 
2.33.0


  parent reply	other threads:[~2021-10-12  6:28 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-12  6:27 [PATCH v5] Fixes to DMA state check Reimar Döffinger
2021-10-12  6:27 ` [PATCH 1/6] libata: fix checking of DMA state Reimar Döffinger
2021-10-12  6:27 ` [PATCH 2/6] libata-scsi: " Reimar Döffinger
2021-10-12  6:27 ` [PATCH 3/6] pata_ali: " Reimar Döffinger
2021-10-12  6:27 ` [PATCH 4/6] pata_amd: " Reimar Döffinger
2021-10-12  6:27 ` [PATCH 5/6] pata_optidma: " Reimar Döffinger
2021-10-12  6:27 ` Reimar Döffinger [this message]
  -- strict thread matches above, loose matches on Subject: below --
2021-09-27  9:15 [PATCH] libata: " Damien Le Moal
2021-10-03 13:28 ` [PATCH v4] Fixes to DMA state check Reimar Döffinger
2021-10-03 13:28   ` [PATCH 6/6] pata_radisys: fix checking of DMA state Reimar Döffinger

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