Re: [PATCH 2/2] Driver: video: Use the macro DMA_BIT_MASK().

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Can you please comment on it ?

Regards
Santosh

On Tue, Feb 21, 2012 at 3:43 PM, santosh nayak
<santoshprasadnayak@xxxxxxxxx> wrote:
> From: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
>
> Use the macro DMA_BIT_MASK instead of the constant  0xffffffff.
>
> Signed-off-by: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
> ---
>  drivers/media/video/cx18/cx18-driver.c |    4 ++--
>  drivers/media/video/ivtv/ivtv-driver.c |    4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
> index 349bd9c..08118e5 100644
> --- a/drivers/media/video/cx18/cx18-driver.c
> +++ b/drivers/media/video/cx18/cx18-driver.c
> @@ -38,7 +38,7 @@
>  #include "cx18-ioctl.h"
>  #include "cx18-controls.h"
>  #include "tuner-xc2028.h"
> -
> +#include <linux/dma-mapping.h>
>  #include <media/tveeprom.h>
>
>  /* If you have already X v4l cards, then set this to X. This way
> @@ -812,7 +812,7 @@ static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *pci_dev,
>                CX18_ERR("Can't enable device %d!\n", cx->instance);
>                return -EIO;
>        }
> -       if (pci_set_dma_mask(pci_dev, 0xffffffff)) {
> +       if (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32))) {
>                CX18_ERR("No suitable DMA available, card %d\n", cx->instance);
>                return -EIO;
>        }
> diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c
> index 107e9e6..d84e5df 100644
> --- a/drivers/media/video/ivtv/ivtv-driver.c
> +++ b/drivers/media/video/ivtv/ivtv-driver.c
> @@ -55,7 +55,7 @@
>  #include "ivtv-routing.h"
>  #include "ivtv-controls.h"
>  #include "ivtv-gpio.h"
> -
> +#include <linux/dma-mapping.h>
>  #include <media/tveeprom.h>
>  #include <media/saa7115.h>
>  #include <media/v4l2-chip-ident.h>
> @@ -813,7 +813,7 @@ static int ivtv_setup_pci(struct ivtv *itv, struct pci_dev *pdev,
>                IVTV_ERR("Can't enable device!\n");
>                return -EIO;
>        }
> -       if (pci_set_dma_mask(pdev, 0xffffffff)) {
> +       if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
>                IVTV_ERR("No suitable DMA available.\n");
>                return -EIO;
>        }
> --
> 1.7.4.4
>
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