RE: [PATCH v2 7/8] net/macb: fix the peripheral version test
From: Punnaiah Choudary Kalluri
Date: Tue Mar 31 2015 - 11:23:38 EST
> -----Original Message-----
> From: Nicolas Ferre [mailto:nicolas.ferre@xxxxxxxxx]
> Sent: Tuesday, March 31, 2015 6:32 PM
> To: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; netdev@xxxxxxxxxxxxxxx; David S.
> Miller
> Cc: linux-kernel@xxxxxxxxxxxxxxx; Boris BREZILLON; Cyrille Pitchen; Alexandre
> Belloni; Michal Simek; Punnaiah Choudary Kalluri; Nicolas Ferre;
> stable@xxxxxxxxxxxxxxx
> Subject: [PATCH v2 7/8] net/macb: fix the peripheral version test
>
> We currently need two checks of the peripheral version in MACB_MID
> register.
> One of them got out of sync after modification by 8a013a9c71b2 (net: macb:
> Include multi queue support for xilinx ZynqMP ethernet version).
> Fix this in macb_configure_caps() so that xilinx ZynqMP will be considered
> as a GEM flavor.
>
> Fixes: 8a013a9c71b2 ("net: macb: Include multi queue support for xilinx
> ZynqMP
> ethernet version")
>
> Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Reviewed-by: Punnaiah Choudary Kalluri <punnaia@xxxxxxxxxx>
Thanks for the patch. We have this change in our tree but somehow missed while sending
this patch to mainline.
Regards,
Punnaiah
> Cc: Michal Simek <michal.simek@xxxxxxxxxx>
> Cc: Punnaiah Choudary Kalluri <punnaia@xxxxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx> #4.0 (if it doesn't make it for -final)
> ---
>
> Changes in v2:
> - fix peripheral version test
>
> drivers/net/ethernet/cadence/macb.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/cadence/macb.c
> b/drivers/net/ethernet/cadence/macb.c
> index babe972a7c32..4412895cf4a8 100644
> --- a/drivers/net/ethernet/cadence/macb.c
> +++ b/drivers/net/ethernet/cadence/macb.c
> @@ -2139,7 +2139,7 @@ static void macb_configure_caps(struct macb *bp,
> const struct macb_config *dt_co
> if (dt_conf)
> bp->caps = dt_conf->caps;
>
> - if (MACB_BFEXT(IDNUM, macb_readl(bp, MID)) == 0x2)
> + if (MACB_BFEXT(IDNUM, macb_readl(bp, MID)) >= 0x2)
> bp->caps |= MACB_CAPS_MACB_IS_GEM;
>
> if (macb_is_gem(bp)) {
> --
> 2.1.3
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