diff mbox

dmaengine: imx-dma: fix format warnings

Message ID E1VbgJK-0006iu-9m@rmk-PC.arm.linux.org.uk (mailing list archive)
State Accepted
Delegated to: Vinod Koul
Headers show

Commit Message

Russell King Oct. 31, 2013, 12:40 a.m. UTC
drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
drivers/dma/imx-dma.c:589:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
drivers/dma/imx-dma.c:599:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'

We can't use the %pa format for these because this relates to phys_addr_t,
and dma_addr_t can be a different size.  So, fix these by converting them
to %llx and casting the dma_addr_t to always be unsigned long long.

While we're here, also use %zu for size_t.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/dma/imx-dma.c |   40 +++++++++++++++++++++++-----------------
 1 files changed, 23 insertions(+), 17 deletions(-)

Comments

Shawn Guo Oct. 31, 2013, 8:25 a.m. UTC | #1
On Thu, Oct 31, 2013 at 12:40:30AM +0000, Russell King wrote:
> drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:589:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:599:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
> 

We should probably mention the compiler version that we're seeing these
warnings with.  It seems that my gcc 4.6.3 does not complain about them.

Shawn

> We can't use the %pa format for these because this relates to phys_addr_t,
> and dma_addr_t can be a different size.  So, fix these by converting them
> to %llx and casting the dma_addr_t to always be unsigned long long.
> 
> While we're here, also use %zu for size_t.
> 
> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
> ---
>  drivers/dma/imx-dma.c |   40 +++++++++++++++++++++++-----------------
>  1 files changed, 23 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
> index 55852c026791..1c0d85d56562 100644
> --- a/drivers/dma/imx-dma.c
> +++ b/drivers/dma/imx-dma.c
> @@ -572,9 +572,11 @@ static int imxdma_xfer_desc(struct imxdma_desc *d)
>  
>  		imx_dmav1_writel(imxdma, d->len, DMA_CNTR(imxdmac->channel));
>  
> -		dev_dbg(imxdma->dev, "%s channel: %d dest=0x%08x src=0x%08x "
> -			"dma_length=%d\n", __func__, imxdmac->channel,
> -			d->dest, d->src, d->len);
> +		dev_dbg(imxdma->dev,
> +			"%s channel: %d dest=0x%08llx src=0x%08llx dma_length=%zu\n",
> +			__func__, imxdmac->channel,
> +			(unsigned long long)d->dest,
> +			(unsigned long long)d->src, d->len);
>  
>  		break;
>  	/* Cyclic transfer is the same as slave_sg with special sg configuration. */
> @@ -586,20 +588,22 @@ static int imxdma_xfer_desc(struct imxdma_desc *d)
>  			imx_dmav1_writel(imxdma, imxdmac->ccr_from_device,
>  					 DMA_CCR(imxdmac->channel));
>  
> -			dev_dbg(imxdma->dev, "%s channel: %d sg=%p sgcount=%d "
> -				"total length=%d dev_addr=0x%08x (dev2mem)\n",
> -				__func__, imxdmac->channel, d->sg, d->sgcount,
> -				d->len, imxdmac->per_address);
> +			dev_dbg(imxdma->dev,
> +				"%s channel: %d sg=%p sgcount=%d total length=%zu dev_addr=0x%08llx (dev2mem)\n",
> +				__func__, imxdmac->channel,
> +				d->sg, d->sgcount, d->len,
> +				(unsigned long long)imxdmac->per_address);
>  		} else if (d->direction == DMA_MEM_TO_DEV) {
>  			imx_dmav1_writel(imxdma, imxdmac->per_address,
>  					 DMA_DAR(imxdmac->channel));
>  			imx_dmav1_writel(imxdma, imxdmac->ccr_to_device,
>  					 DMA_CCR(imxdmac->channel));
>  
> -			dev_dbg(imxdma->dev, "%s channel: %d sg=%p sgcount=%d "
> -				"total length=%d dev_addr=0x%08x (mem2dev)\n",
> -				__func__, imxdmac->channel, d->sg, d->sgcount,
> -				d->len, imxdmac->per_address);
> +			dev_dbg(imxdma->dev,
> +				"%s channel: %d sg=%p sgcount=%d total length=%zu dev_addr=0x%08llx (mem2dev)\n",
> +				__func__, imxdmac->channel,
> +				d->sg, d->sgcount, d->len,
> +				(unsigned long long)imxdmac->per_address);
>  		} else {
>  			dev_err(imxdma->dev, "%s channel: %d bad dma mode\n",
>  				__func__, imxdmac->channel);
> @@ -870,7 +874,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic(
>  	int i;
>  	unsigned int periods = buf_len / period_len;
>  
> -	dev_dbg(imxdma->dev, "%s channel: %d buf_len=%d period_len=%d\n",
> +	dev_dbg(imxdma->dev, "%s channel: %d buf_len=%zu period_len=%zu\n",
>  			__func__, imxdmac->channel, buf_len, period_len);
>  
>  	if (list_empty(&imxdmac->ld_free) ||
> @@ -926,8 +930,9 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_memcpy(
>  	struct imxdma_engine *imxdma = imxdmac->imxdma;
>  	struct imxdma_desc *desc;
>  
> -	dev_dbg(imxdma->dev, "%s channel: %d src=0x%x dst=0x%x len=%d\n",
> -			__func__, imxdmac->channel, src, dest, len);
> +	dev_dbg(imxdma->dev, "%s channel: %d src=0x%llx dst=0x%llx len=%zu\n",
> +		__func__, imxdmac->channel, (unsigned long long)src,
> +		(unsigned long long)dest, len);
>  
>  	if (list_empty(&imxdmac->ld_free) ||
>  	    imxdma_chan_is_doing_cyclic(imxdmac))
> @@ -956,9 +961,10 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_interleaved(
>  	struct imxdma_engine *imxdma = imxdmac->imxdma;
>  	struct imxdma_desc *desc;
>  
> -	dev_dbg(imxdma->dev, "%s channel: %d src_start=0x%x dst_start=0x%x\n"
> -		"   src_sgl=%s dst_sgl=%s numf=%d frame_size=%d\n", __func__,
> -		imxdmac->channel, xt->src_start, xt->dst_start,
> +	dev_dbg(imxdma->dev, "%s channel: %d src_start=0x%llx dst_start=0x%llx\n"
> +		"   src_sgl=%s dst_sgl=%s numf=%zu frame_size=%zu\n", __func__,
> +		imxdmac->channel, (unsigned long long)xt->src_start,
> +		(unsigned long long) xt->dst_start,
>  		xt->src_sgl ? "true" : "false", xt->dst_sgl ? "true" : "false",
>  		xt->numf, xt->frame_size);
>  
> -- 
> 1.7.4.4
> 

--
To unsubscribe from this list: send the line "unsubscribe dmaengine" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Russell King - ARM Linux Oct. 31, 2013, 9:08 a.m. UTC | #2
On Thu, Oct 31, 2013 at 04:25:35PM +0800, Shawn Guo wrote:
> On Thu, Oct 31, 2013 at 12:40:30AM +0000, Russell King wrote:
> > drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
> > drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
> > drivers/dma/imx-dma.c:589:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
> > drivers/dma/imx-dma.c:599:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
> > drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
> > drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
> > drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
> > drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
> > 
> 
> We should probably mention the compiler version that we're seeing these
> warnings with.  It seems that my gcc 4.6.3 does not complain about them.

This will be compiler independent.  You can't pass 64-bit quantities to
printf with "%x".  The reason you're not seeing them is because your
normal builds will have dma_addr_t as 32-bit, but if LPAE is enabled
(which can happen with randconfig), dma_addr_t can also be 64-bit.

This is why Olof's build results regularly pop this up.

As I will be expanding my builds to include things like LPAE and KVM,
I will start seeing these warnings as well.
--
To unsubscribe from this list: send the line "unsubscribe dmaengine" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Vinod Koul Oct. 31, 2013, 1:36 p.m. UTC | #3
On Thu, Oct 31, 2013 at 12:40:30AM +0000, Russell King wrote:
> drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:589:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:599:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
> drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
> 
> We can't use the %pa format for these because this relates to phys_addr_t,
> and dma_addr_t can be a different size.  So, fix these by converting them
> to %llx and casting the dma_addr_t to always be unsigned long long.
> 
> While we're here, also use %zu for size_t.

Applied, thanks

--
~Vinod
--
To unsubscribe from this list: send the line "unsubscribe dmaengine" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 55852c026791..1c0d85d56562 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -572,9 +572,11 @@  static int imxdma_xfer_desc(struct imxdma_desc *d)
 
 		imx_dmav1_writel(imxdma, d->len, DMA_CNTR(imxdmac->channel));
 
-		dev_dbg(imxdma->dev, "%s channel: %d dest=0x%08x src=0x%08x "
-			"dma_length=%d\n", __func__, imxdmac->channel,
-			d->dest, d->src, d->len);
+		dev_dbg(imxdma->dev,
+			"%s channel: %d dest=0x%08llx src=0x%08llx dma_length=%zu\n",
+			__func__, imxdmac->channel,
+			(unsigned long long)d->dest,
+			(unsigned long long)d->src, d->len);
 
 		break;
 	/* Cyclic transfer is the same as slave_sg with special sg configuration. */
@@ -586,20 +588,22 @@  static int imxdma_xfer_desc(struct imxdma_desc *d)
 			imx_dmav1_writel(imxdma, imxdmac->ccr_from_device,
 					 DMA_CCR(imxdmac->channel));
 
-			dev_dbg(imxdma->dev, "%s channel: %d sg=%p sgcount=%d "
-				"total length=%d dev_addr=0x%08x (dev2mem)\n",
-				__func__, imxdmac->channel, d->sg, d->sgcount,
-				d->len, imxdmac->per_address);
+			dev_dbg(imxdma->dev,
+				"%s channel: %d sg=%p sgcount=%d total length=%zu dev_addr=0x%08llx (dev2mem)\n",
+				__func__, imxdmac->channel,
+				d->sg, d->sgcount, d->len,
+				(unsigned long long)imxdmac->per_address);
 		} else if (d->direction == DMA_MEM_TO_DEV) {
 			imx_dmav1_writel(imxdma, imxdmac->per_address,
 					 DMA_DAR(imxdmac->channel));
 			imx_dmav1_writel(imxdma, imxdmac->ccr_to_device,
 					 DMA_CCR(imxdmac->channel));
 
-			dev_dbg(imxdma->dev, "%s channel: %d sg=%p sgcount=%d "
-				"total length=%d dev_addr=0x%08x (mem2dev)\n",
-				__func__, imxdmac->channel, d->sg, d->sgcount,
-				d->len, imxdmac->per_address);
+			dev_dbg(imxdma->dev,
+				"%s channel: %d sg=%p sgcount=%d total length=%zu dev_addr=0x%08llx (mem2dev)\n",
+				__func__, imxdmac->channel,
+				d->sg, d->sgcount, d->len,
+				(unsigned long long)imxdmac->per_address);
 		} else {
 			dev_err(imxdma->dev, "%s channel: %d bad dma mode\n",
 				__func__, imxdmac->channel);
@@ -870,7 +874,7 @@  static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic(
 	int i;
 	unsigned int periods = buf_len / period_len;
 
-	dev_dbg(imxdma->dev, "%s channel: %d buf_len=%d period_len=%d\n",
+	dev_dbg(imxdma->dev, "%s channel: %d buf_len=%zu period_len=%zu\n",
 			__func__, imxdmac->channel, buf_len, period_len);
 
 	if (list_empty(&imxdmac->ld_free) ||
@@ -926,8 +930,9 @@  static struct dma_async_tx_descriptor *imxdma_prep_dma_memcpy(
 	struct imxdma_engine *imxdma = imxdmac->imxdma;
 	struct imxdma_desc *desc;
 
-	dev_dbg(imxdma->dev, "%s channel: %d src=0x%x dst=0x%x len=%d\n",
-			__func__, imxdmac->channel, src, dest, len);
+	dev_dbg(imxdma->dev, "%s channel: %d src=0x%llx dst=0x%llx len=%zu\n",
+		__func__, imxdmac->channel, (unsigned long long)src,
+		(unsigned long long)dest, len);
 
 	if (list_empty(&imxdmac->ld_free) ||
 	    imxdma_chan_is_doing_cyclic(imxdmac))
@@ -956,9 +961,10 @@  static struct dma_async_tx_descriptor *imxdma_prep_dma_interleaved(
 	struct imxdma_engine *imxdma = imxdmac->imxdma;
 	struct imxdma_desc *desc;
 
-	dev_dbg(imxdma->dev, "%s channel: %d src_start=0x%x dst_start=0x%x\n"
-		"   src_sgl=%s dst_sgl=%s numf=%d frame_size=%d\n", __func__,
-		imxdmac->channel, xt->src_start, xt->dst_start,
+	dev_dbg(imxdma->dev, "%s channel: %d src_start=0x%llx dst_start=0x%llx\n"
+		"   src_sgl=%s dst_sgl=%s numf=%zu frame_size=%zu\n", __func__,
+		imxdmac->channel, (unsigned long long)xt->src_start,
+		(unsigned long long) xt->dst_start,
 		xt->src_sgl ? "true" : "false", xt->dst_sgl ? "true" : "false",
 		xt->numf, xt->frame_size);