[U-Boot] [PATCH]: net: Wrong Initialization in davinci-emac driver

Joe Hershberger joe.hershberger at gmail.com
Wed Jan 27 20:57:45 CET 2016


On Mon, Jan 25, 2016 at 11:00 AM, Vishwas Srivastava
<vishu.kernel at gmail.com> wrote:
> Author: Vishwas Srivastava <vishu.kernel at gmail.com>
> Date:   Mon Jan 25 21:28:17 2016 +0530

Please fix the patch subject. No Leading colon.

>
>     Wrong Initialization in davinci emac driver
>
>     emac module of the davinci platform supports only 8 tx and
>     8 rx channels (total 16). emac driver for davinci platform,
>     however, while doing initialization of the dma descriptor
>     head pointers,wrongly initializes the 16 head pointers
>     (instead of  8) for tx dma and 16 head pointers for rx dma,
>     which is wrong.The result is, that this register initilization
>     spills over the other registers which was not intended and is
>     undesirable.This patch fixes this problem.
>
>     Signed-off-by: Vishwas Srivastava <vishu.kernel at gmail.com>
>     CC: Sergey Kubushyn <ksi at koi8.net>;Joe Hershberger <
> joe.hershberger at ni.com>

Please fix this formatting. One "Cc:" per line.

>     Signed-off-by: Vishwas Srivastava <vishu.kernel at gmail.com>

Don't specify this twice.

>
> diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
> index 92c3dca..3f54a3f 100644
> --- a/drivers/net/davinci_emac.c
> +++ b/drivers/net/davinci_emac.c
> @@ -459,11 +459,11 @@ static int davinci_eth_open(struct eth_device *dev,
> bd_t *bis)

This line wrap is corrupt. The patch won't apply cleanly.

>
>         /* Set DMA 8 TX / 8 RX Head pointers to 0 */
>         addr = &adap_emac->TX0HDP;
> -       for(cnt = 0; cnt < 16; cnt++)
> +       for(cnt = 0; cnt < 8; cnt++)
>                 writel(0, addr++);
>
>         addr = &adap_emac->RX0HDP;
> -       for(cnt = 0; cnt < 16; cnt++)
> +       for(cnt = 0; cnt < 8; cnt++)
>                 writel(0, addr++);
>
>         /* Clear Statistics (do this before setting MacControl register) */

This line was corrupted by patchwork. You are doing something wrong.

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Please correct all these issues, but for the content of the patch, still Acked.

Thanks,
-Joe


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