From: Robin Gong <yibin.gong@nxp.com> To: Sascha Hauer <s.hauer@pengutronix.de>, "dmaengine@vger.kernel.org" <dmaengine@vger.kernel.org> Cc: Vinod Koul <vkoul@kernel.org>, "kernel@pengutronix.de" <kernel@pengutronix.de>, dl-linux-imx <linux-imx@nxp.com>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org> Subject: RE: [PATCH] dmaengine: imx-sdma: initialize all script addresses Date: Wed, 13 May 2020 08:02:33 +0000 [thread overview] Message-ID: <VE1PR04MB6638AAFB64E28929C0F4676E89BF0@VE1PR04MB6638.eurprd04.prod.outlook.com> (raw) In-Reply-To: <20200513060405.18685-1-s.hauer@pengutronix.de> On 2020/05/13 14:04 Sascha Hauer <s.hauer@pengutronix.de> wrote: > The script addresses array increases with each new version. The driver > initializes the array to -EINVAL initially, but only up to the size of the v1 array. > Initialize the additional addresses for the newer versions as well. Without this > unitialized values of the newer arrays are treated as valid. > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > --- > drivers/dma/imx-sdma.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index > 01422e721b26e..2ca79357f57dc 100644 > --- a/drivers/dma/imx-sdma.c > +++ b/drivers/dma/imx-sdma.c > @@ -2080,7 +2080,7 @@ static int sdma_probe(struct platform_device *pdev) > > /* initially no scripts available */ > saddr_arr = (s32 *)sdma->script_addrs; > - for (i = 0; i < SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1; i++) > + for (i = 0; i < sizeof(*sdma->script_addrs) / sizeof(s32); i++) > saddr_arr[i] = -EINVAL; Reviewed-by : Robin Gong <yibin.gong@nxp.com> > > dma_cap_set(DMA_SLAVE, sdma->dma_device.cap_mask); > -- > 2.26.2
WARNING: multiple messages have this Message-ID (diff)
From: Robin Gong <yibin.gong@nxp.com> To: Sascha Hauer <s.hauer@pengutronix.de>, "dmaengine@vger.kernel.org" <dmaengine@vger.kernel.org> Cc: "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, Vinod Koul <vkoul@kernel.org>, dl-linux-imx <linux-imx@nxp.com>, "kernel@pengutronix.de" <kernel@pengutronix.de> Subject: RE: [PATCH] dmaengine: imx-sdma: initialize all script addresses Date: Wed, 13 May 2020 08:02:33 +0000 [thread overview] Message-ID: <VE1PR04MB6638AAFB64E28929C0F4676E89BF0@VE1PR04MB6638.eurprd04.prod.outlook.com> (raw) In-Reply-To: <20200513060405.18685-1-s.hauer@pengutronix.de> On 2020/05/13 14:04 Sascha Hauer <s.hauer@pengutronix.de> wrote: > The script addresses array increases with each new version. The driver > initializes the array to -EINVAL initially, but only up to the size of the v1 array. > Initialize the additional addresses for the newer versions as well. Without this > unitialized values of the newer arrays are treated as valid. > > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > --- > drivers/dma/imx-sdma.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index > 01422e721b26e..2ca79357f57dc 100644 > --- a/drivers/dma/imx-sdma.c > +++ b/drivers/dma/imx-sdma.c > @@ -2080,7 +2080,7 @@ static int sdma_probe(struct platform_device *pdev) > > /* initially no scripts available */ > saddr_arr = (s32 *)sdma->script_addrs; > - for (i = 0; i < SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1; i++) > + for (i = 0; i < sizeof(*sdma->script_addrs) / sizeof(s32); i++) > saddr_arr[i] = -EINVAL; Reviewed-by : Robin Gong <yibin.gong@nxp.com> > > dma_cap_set(DMA_SLAVE, sdma->dma_device.cap_mask); > -- > 2.26.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-05-13 8:02 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-13 6:04 [PATCH] dmaengine: imx-sdma: initialize all script addresses Sascha Hauer 2020-05-13 6:04 ` Sascha Hauer 2020-05-13 8:02 ` Robin Gong [this message] 2020-05-13 8:02 ` Robin Gong 2020-05-15 6:57 ` Vinod Koul 2020-05-15 6:57 ` Vinod Koul
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