From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
To: linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org
Cc: Martyn Welch <martyn.welch@ge.com>,
Manohar Vanga <manohar.vanga@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Igor Alekseev <igor.alekseev@itep.ru>,
Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Subject: [PATCH 2/6] vme: tsi148: fix DMA lists longer that one item
Date: Mon, 18 May 2015 21:56:29 +0300 [thread overview]
Message-ID: <1431975393-19735-3-git-send-email-dmitry.kalinkin@gmail.com> (raw)
In-Reply-To: <1431975393-19735-1-git-send-email-dmitry.kalinkin@gmail.com>
DMA lists on tsi148 weren't processed further than the first item
because of the broken logic. This regression was introduced in:
ac1a4f2caf7b071 "Staging: VME: Ensure TSI148 link list descriptors..."
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Cc: Igor Alekseev <igor.alekseev@itep.ru>
---
drivers/vme/bridges/vme_tsi148.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/vme/bridges/vme_tsi148.c b/drivers/vme/bridges/vme_tsi148.c
index 895c2a3..1be4136 100644
--- a/drivers/vme/bridges/vme_tsi148.c
+++ b/drivers/vme/bridges/vme_tsi148.c
@@ -1844,8 +1844,8 @@ static int tsi148_dma_list_add(struct vme_dma_list *list,
reg_split((unsigned long long)entry->dma_handle, &address_high,
&address_low);
- entry->descriptor.dnlau = cpu_to_be32(address_high);
- entry->descriptor.dnlal = cpu_to_be32(address_low);
+ prev->descriptor.dnlau = cpu_to_be32(address_high);
+ prev->descriptor.dnlal = cpu_to_be32(address_low);
}
--
1.8.3.1
next prev parent reply other threads:[~2015-05-18 18:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-18 18:56 [PATCH 0/6] vme: DMA improvements Dmitry Kalinkin
2015-05-18 18:56 ` [PATCH 1/6] Documentation: mention vme_master_mmap() in VME API Dmitry Kalinkin
2015-05-18 18:56 ` Dmitry Kalinkin [this message]
2015-05-18 18:56 ` [PATCH 3/6] vme: tsi148: fix first DMA item mapping Dmitry Kalinkin
2015-05-18 18:56 ` [PATCH 4/6] vme: stop DMA transfer on interruption Dmitry Kalinkin
2015-05-18 18:56 ` [PATCH 5/6] staging: vme_user: refactor llseek to switch(){} Dmitry Kalinkin
2015-05-18 18:56 ` [PATCH 6/6] staging: vme_user: provide DMA functionality Dmitry Kalinkin
2015-05-19 9:18 ` Dan Carpenter
2015-05-21 22:12 ` Dmitry Kalinkin
2015-05-22 7:59 ` Dan Carpenter
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