netdev - RE: [PATCH net-next V3 02/16] net: fec: remove unused interrupt FEC_ENET_TS

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Message-ID: <VI1PR0401MB1855BC1C6A65516245790BA3FF9F0@VI1PR0401MB1855.eurprd04.prod.outlook.com>
Date:	Wed, 6 Apr 2016 09:10:30 +0000
From:	Fugang Duan <fugang.duan@....com>
To:	Troy Kisky <troy.kisky@...ndarydevices.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"lznuaa@...il.com" <lznuaa@...il.com>
CC:	Fabio Estevam <fabio.estevam@....com>,
	"l.stach@...gutronix.de" <l.stach@...gutronix.de>,
	"andrew@...n.ch" <andrew@...n.ch>,
	"tremyfr@...il.com" <tremyfr@...il.com>,
	"gerg@...inux.org" <gerg@...inux.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"johannes@...solutions.net" <johannes@...solutions.net>,
	"stillcompiling@...il.com" <stillcompiling@...il.com>,
	"sergei.shtylyov@...entembedded.com" 
	<sergei.shtylyov@...entembedded.com>,
	"arnd@...db.de" <arnd@...db.de>
Subject: RE: [PATCH net-next V3 02/16] net: fec: remove unused interrupt
 FEC_ENET_TS_TIMER

From: Troy Kisky <troy.kisky@...ndarydevices.com> Sent: Wednesday, April 06, 2016 10:26 AM
> To: netdev@...r.kernel.org; davem@...emloft.net; Fugang Duan
> <fugang.duan@....com>; lznuaa@...il.com
> Cc: Fabio Estevam <fabio.estevam@....com>; l.stach@...gutronix.de;
> andrew@...n.ch; tremyfr@...il.com; gerg@...inux.org; linux-arm-
> kernel@...ts.infradead.org; johannes@...solutions.net;
> stillcompiling@...il.com; sergei.shtylyov@...entembedded.com;
> arnd@...db.de; Troy Kisky <troy.kisky@...ndarydevices.com>
> Subject: [PATCH net-next V3 02/16] net: fec: remove unused interrupt
> FEC_ENET_TS_TIMER
> 
> FEC_ENET_TS_TIMER is not checked in the interrupt routine so there is no need
> to enable it.
> 
> Signed-off-by: Troy Kisky <troy.kisky@...ndarydevices.com>
> 
> ---
> v3: New patch
> 
> Frank Li said "TS_TIMER should never be triggered."
> when discussing another patch.
> ---
>  drivers/net/ethernet/freescale/fec.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/freescale/fec.h
> b/drivers/net/ethernet/freescale/fec.h
> index 195122e..6dd0ba8 100644
> --- a/drivers/net/ethernet/freescale/fec.h
> +++ b/drivers/net/ethernet/freescale/fec.h
> @@ -374,8 +374,8 @@ struct bufdesc_ex {
>  #define FEC_ENET_TS_AVAIL       ((uint)0x00010000)
>  #define FEC_ENET_TS_TIMER       ((uint)0x00008000)
> 
> -#define FEC_DEFAULT_IMASK (FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII
> | FEC_ENET_TS_TIMER)
> -#define FEC_NAPI_IMASK	(FEC_ENET_MII | FEC_ENET_TS_TIMER)
> +#define FEC_DEFAULT_IMASK (FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII)
> +#define FEC_NAPI_IMASK	FEC_ENET_MII
>  #define FEC_RX_DISABLED_IMASK (FEC_DEFAULT_IMASK & (~FEC_ENET_RXF))
> 
>  /* ENET interrupt coalescing macro define */
> --
> 2.5.0

Acked-by: Fugang Duan <fugang.duan@....com>