From: Michael Grzeschik <mgr@pengutronix.de>
To: Andrew Lunn <andrew@lunn.ch>
Cc: netdev@vger.kernel.org, f.fainelli@gmail.com,
davem@davemloft.net, kernel@pengutronix.de,
matthias.schiffer@ew.tq-group.com, woojung.huh@microchip.com,
UNGLinuxDriver@microchip.com
Subject: Re: [PATCH 05/11] net: dsa: microchip: ksz8795: use mib_cnt where possible
Date: Thu, 19 Nov 2020 08:36:15 +0100 [thread overview]
Message-ID: <20201119073615.GB6507@pengutronix.de> (raw)
In-Reply-To: <20201119002047.GI1804098@lunn.ch>
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Hi Andrew!
On Thu, Nov 19, 2020 at 01:20:47AM +0100, Andrew Lunn wrote:
>On Wed, Nov 18, 2020 at 11:03:51PM +0100, Michael Grzeschik wrote:
>> The variable mib_cnt is assigned with TOTAL_SWITCH_COUNTER_NUM. This
>> value can also be derived from the array size of mib_names. This patch
>> uses this calculated value instead, removes the extra define and uses
>> mib_cnt everywhere possible instead of the static define
>> TOTAL_SWITCH_COUNTER_NUM.
>>
>> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
>> ---
>> drivers/net/dsa/microchip/ksz8795.c | 8 ++++----
>> drivers/net/dsa/microchip/ksz8795_reg.h | 3 ---
>> 2 files changed, 4 insertions(+), 7 deletions(-)
>>
>> diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
>> index 04a571bde7e6a4f..6ddba2de2d3026e 100644
>> --- a/drivers/net/dsa/microchip/ksz8795.c
>> +++ b/drivers/net/dsa/microchip/ksz8795.c
>> @@ -23,7 +23,7 @@
>>
>> static const struct {
>> char string[ETH_GSTRING_LEN];
>> -} mib_names[TOTAL_SWITCH_COUNTER_NUM] = {
>> +} mib_names[] = {
>> { "rx_hi" },
>> { "rx_undersize" },
>> { "rx_fragments" },
>> @@ -656,7 +656,7 @@ static void ksz8795_get_strings(struct dsa_switch *ds, int port,
>> {
>> int i;
>>
>> - for (i = 0; i < TOTAL_SWITCH_COUNTER_NUM; i++) {
>> + for (i = 0; i < dev->mib_cnt; i++) {
>> memcpy(buf + i * ETH_GSTRING_LEN, mib_names[i].string,
>> ETH_GSTRING_LEN);
>> }
>> @@ -1236,7 +1236,7 @@ static int ksz8795_switch_init(struct ksz_device *dev)
>> dev->port_mask |= dev->host_mask;
>>
>> dev->reg_mib_cnt = KSZ8795_COUNTER_NUM;
>> - dev->mib_cnt = TOTAL_SWITCH_COUNTER_NUM;
>> + dev->mib_cnt = ARRAY_SIZE(mib_names);
>
>Hi Michael
>
>I think it would be better to just use ARRAY_SIZE(mib_names)
>everywhere. It is one less hoop to jump through when looking for array
>overruns, etc.
I would better stay with the variable, because of two reasons. First it
is also used in ksz_common.c and ksz_9477.c. Also in my next patches
I will introduce another mib_names array. We will have ksz8863_mib_names
and ksz8795_mib_names. In the init function then the mib_cnt will be set
regarding to the chip that is found.
Do you agree that the extra variable makes the code more readable in
that case?
Regards,
Michael
--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
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next prev parent reply other threads:[~2020-11-19 7:36 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-18 22:03 [PATCH 00/11] net: dsa: microchip: make ksz8795 driver more dynamic Michael Grzeschik
2020-11-18 22:03 ` [PATCH 01/11] net: dsa: microchip: ksz8795: remove unused last_port variable Michael Grzeschik
2020-11-19 0:05 ` Andrew Lunn
2020-11-19 3:06 ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 02/11] net: dsa: microchip: ksz8795: remove superfluous port_cnt assignment Michael Grzeschik
2020-11-19 0:10 ` Andrew Lunn
2020-11-19 3:07 ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 03/11] net: dsa: microchip: ksz8795: move variable assignments from detect to init Michael Grzeschik
2020-11-19 0:14 ` Andrew Lunn
2020-11-19 3:07 ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 04/11] net: dsa: microchip: ksz8795: use reg_mib_cnt where possible Michael Grzeschik
2020-11-19 0:16 ` Andrew Lunn
2020-11-19 3:08 ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 05/11] net: dsa: microchip: ksz8795: use mib_cnt " Michael Grzeschik
2020-11-19 0:20 ` Andrew Lunn
2020-11-19 7:36 ` Michael Grzeschik [this message]
2020-11-19 3:09 ` Florian Fainelli
2020-11-19 7:01 ` kernel test robot
2020-11-18 22:03 ` [PATCH 06/11] net: dsa: microchip: ksz8795: use phy_port_cnt " Michael Grzeschik
2020-11-19 0:29 ` Andrew Lunn
2020-11-19 8:40 ` Michael Grzeschik
2020-11-19 13:59 ` Andrew Lunn
2020-11-19 3:13 ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 07/11] net: dsa: microchip: remove superfluous num_ports asignment Michael Grzeschik
2020-11-19 0:32 ` Andrew Lunn
2020-11-19 3:10 ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 08/11] net: dsa: microchip: ksz8795: align port_cnt usage with other microchip drivers Michael Grzeschik
2020-11-19 0:35 ` Andrew Lunn
2020-11-19 18:06 ` Tristram.Ha
2020-11-19 3:13 ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 09/11] net: dsa: microchip: remove usage of mib_port_count Michael Grzeschik
2020-11-19 1:13 ` Andrew Lunn
2020-11-19 3:12 ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 10/11] net: dsa: microchip: ksz8795: dynamic allocate memory for flush_dyn_mac_table Michael Grzeschik
2020-11-19 1:21 ` Andrew Lunn
2020-11-19 3:12 ` Florian Fainelli
2020-11-18 22:03 ` [PATCH 11/11] net: dsa: microchip: ksz8795: use num_vlans where possible Michael Grzeschik
2020-11-19 1:22 ` Andrew Lunn
2020-11-19 3:11 ` Florian Fainelli
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