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From: Egil Hjelmeland <privat@egil-hjelmeland.no>
To: Andrew Lunn <andrew@lunn.ch>
Cc: vivien.didelot@savoirfairelinux.com, f.fainelli@gmail.com,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel@pengutronix.de
Subject: Re: [PATCH v2 net-next 1/3] net: dsa: lan9303: Refactor lan9303_xxx_packet_processing()
Date: Tue, 1 Aug 2017 15:50:14 +0200	[thread overview]
Message-ID: <faf9e431-c5e4-7fcc-0341-6fc46e3561fb@egil-hjelmeland.no> (raw)
In-Reply-To: <20170801133934.GB23157@lunn.ch>

On 01. aug. 2017 15:39, Andrew Lunn wrote:
>> @@ -704,7 +710,7 @@ static void lan9303_get_ethtool_stats(struct dsa_switch *ds, int port,
>>   	unsigned int u, poff;
>>   	int ret;
>>   
>> -	poff = port * 0x400;
>> +	poff = LAN9303_SWITCH_PORT_REG(port, 0);
>>   
>>   	for (u = 0; u < ARRAY_SIZE(lan9303_mib); u++) {
>>   		ret = lan9303_read_switch_reg(chip,
> 
> So the actual code is:
> 
> 	for (u = 0; u < ARRAY_SIZE(lan9303_mib); u++) {
>         		ret = lan9303_read_switch_reg(chip,
> 			      		      lan9303_mib[u].offset + poff,
> 					      &reg);
> 
> Could this be written as
> 
> 	for (u = 0; u < ARRAY_SIZE(lan9303_mib); u++) {
> 		ret = lan9303_read_switch_port(chip, port, lan9303_mib[u].offset, &reg);
> 
> It is then clear you are reading the statistics from a port register.
> 
>     Andrew
> 

Yes it can. Since it is (insignificantly) less efficient, I
chose not to touch it. But I can do it if you like.

Egil

  reply	other threads:[~2017-08-01 13:50 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-01 11:14 [PATCH v2 net-next 0/3] Refactor lan9303_xxx_packet_processing Egil Hjelmeland
2017-08-01 11:14 ` [PATCH v2 net-next 1/3] net: dsa: lan9303: Refactor lan9303_xxx_packet_processing() Egil Hjelmeland
2017-08-01 13:39   ` Andrew Lunn
2017-08-01 13:50     ` Egil Hjelmeland [this message]
2017-08-01 14:02       ` Andrew Lunn
2017-08-01 14:43         ` Egil Hjelmeland
2017-08-01 11:14 ` [PATCH v2 net-next 2/3] net: dsa: lan9303: define LAN9303_NUM_PORTS 3 Egil Hjelmeland
2017-08-01 11:49   ` Juergen Borleis
2017-08-01 12:31     ` Egil Hjelmeland
2017-08-01 13:27       ` Andrew Lunn
2017-08-01 13:45         ` Egil Hjelmeland
2017-08-03  9:53         ` Egil Hjelmeland
2017-08-03 13:33           ` Andrew Lunn
2017-08-01 11:14 ` [PATCH v2 net-next 3/3] net: dsa: lan9303: Simplify lan9303_xxx_packet_processing() usage Egil Hjelmeland

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