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

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Message-ID: <VI1PR04MB580763F33F7EFB0265DB1C40F2919@VI1PR04MB5807.eurprd04.prod.outlook.com>
Date:   Thu, 21 Jul 2022 13:04:37 +0000
From:   Camelia Alexandra Groza <camelia.groza@....com>
To:     Sean Anderson <sean.anderson@...o.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>,
        Sean Anderson <sean.anderson@...o.com>
Subject: RE: [PATCH net-next v3 29/47] net: fman: Map the base address once

> -----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

> 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>