From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: <vinod.koul@intel.com>, <arnd@arndb.de>, <andy.shevchenko@gmail.com>
Cc: <linux-kernel@vger.kernel.org>, <dmaengine@vger.kernel.org>,
<linux-omap@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <nsekhar@ti.com>,
<tony@atomide.com>
Subject: [PATCH V03 1/5] dmaengine: core: Skip mask matching when it is not provided to private_candidate
Date: Mon, 14 Dec 2015 22:47:38 +0200 [thread overview]
Message-ID: <1450126062-8063-2-git-send-email-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <1450126062-8063-1-git-send-email-peter.ujfalusi@ti.com>
If mask is NULL skip the mask matching against the DMA device capabilities.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/dma/dmaengine.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index daf54a39bcc7..6311e1fc80be 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -515,7 +515,7 @@ static struct dma_chan *private_candidate(const dma_cap_mask_t *mask,
{
struct dma_chan *chan;
- if (!__dma_device_satisfies_mask(dev, mask)) {
+ if (mask && !__dma_device_satisfies_mask(dev, mask)) {
pr_debug("%s: wrong capabilities\n", __func__);
return NULL;
}
--
2.6.4
next prev parent reply other threads:[~2015-12-14 20:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-14 20:47 [PATCH V03 0/5] dmaengine: New 'universal' API for requesting channel Peter Ujfalusi
2015-12-14 20:47 ` Peter Ujfalusi [this message]
2015-12-14 20:47 ` [PATCH V03 2/5] dmaengine: core: Move and merge the code paths using private_candidate Peter Ujfalusi
2015-12-14 20:47 ` [PATCH V03 3/5] dmaengine: core: Introduce new, universal API to request a channel Peter Ujfalusi
2015-12-14 20:47 ` [PATCH V03 4/5] dmaengine: edma: Add support for DMA filter mapping to slave devices Peter Ujfalusi
2015-12-14 20:47 ` [PATCH V03 5/5] dmaengine: omap-dma: " Peter Ujfalusi
2015-12-18 5:49 ` [PATCH V03 0/5] dmaengine: New 'universal' API for requesting channel Vinod Koul
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