linux-kernel - RE: [PATCH v2 7/8] net/macb: fix the peripheral version test

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Message-ID: <fca6d00c-5a4f-403b-ba18-bc08fefea121@BN1BFFO11FD016.protection.gbl>
Date:	Tue, 31 Mar 2015 15:08:19 +0000
From:	Punnaiah Choudary Kalluri <punnaiah.choudary.kalluri@...inx.com>
To:	Nicolas Ferre <nicolas.ferre@...el.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Boris BREZILLON" <boris.brezillon@...e-electrons.com>,
	Cyrille Pitchen <cyrille.pitchen@...el.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Michal Simek <michals@...inx.com>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: RE: [PATCH v2 7/8] net/macb: fix the peripheral version test



> -----Original Message-----
> From: Nicolas Ferre [mailto:nicolas.ferre@...el.com]
> Sent: Tuesday, March 31, 2015 6:32 PM
> To: linux-arm-kernel@...ts.infradead.org; netdev@...r.kernel.org; David S.
> Miller
> Cc: linux-kernel@...r.kernel.org; Boris BREZILLON; Cyrille Pitchen; Alexandre
> Belloni; Michal Simek; Punnaiah Choudary Kalluri; Nicolas Ferre;
> stable@...r.kernel.org
> 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@...el.com>
   Reviewed-by: Punnaiah Choudary Kalluri <punnaia@...inx.com>

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@...inx.com>
> Cc: Punnaiah Choudary Kalluri <punnaia@...inx.com>
> Cc: <stable@...r.kernel.org> #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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