linux-kernel - Re: [PATCH net-next v3 29/47] net: fman: Map the base address once

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Message-ID: <ffe0a1ec-4ff2-ce98-6eba-7d9e5ec8f04d@seco.com>
Date:   Thu, 21 Jul 2022 11:34:29 -0400
From:   Sean Anderson <sean.anderson@...o.com>
To:     Camelia Alexandra Groza <camelia.groza@....com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Madalin Bucur <madalin.bucur@....com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Cc:     Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Russell King <linux@...linux.org.uk>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next v3 29/47] net: fman: Map the base address once



On 7/21/22 9:04 AM, Camelia Alexandra Groza wrote:
>> -----Original Message-----
>> From: Sean Anderson <sean.anderson@...o.com>
>> Sent: Saturday, July 16, 2022 1:00
>> To: David S . Miller <davem@...emloft.net>; Jakub Kicinski
>> <kuba@...nel.org>; Madalin Bucur <madalin.bucur@....com>;
>> netdev@...r.kernel.org
>> Cc: Paolo Abeni <pabeni@...hat.com>; Eric Dumazet
>> <edumazet@...gle.com>; linux-arm-kernel@...ts.infradead.org; Russell
>> King <linux@...linux.org.uk>; linux-kernel@...r.kernel.org; Sean Anderson
>> <sean.anderson@...o.com>
>> Subject: [PATCH net-next v3 29/47] net: fman: Map the base address once
>> 
>> We don't need to remap the base address from the resource twice (once in
>> mac_probe() and again in set_fman_mac_params()). We still need the
>> resource to get the end address, but we can use a single function call
>> to get both at once.
>> 
>> While we're at it, use platform_get_mem_or_io and
>> devm_request_resource
>> to map the resource. I think this is the more "correct" way to do things
>> here, since we use the pdev resource, instead of creating a new one.
>> It's still a bit tricy, since we need to ensure that the resource is a
> 
> *tricky* typo

Thanks, will fix.

--Sean

>> child of the fman region when it gets requested.
>> 
>> Signed-off-by: Sean Anderson <sean.anderson@...o.com>
> 
> Acked-by: Camelia Groza <camelia.groza@....com>
>