netdev - RE: [v1,net-next 1/3] net:enetc: allocate CBD ring data memory using DMA coherent methods

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Date:   Wed, 9 Feb 2022 08:31:19 +0000
From:   Claudiu Manoil <claudiu.manoil@....com>
To:     Po Liu <po.liu@....com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "tim.gardner@...onical.com" <tim.gardner@...onical.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        Vladimir Oltean <vladimir.oltean@....com>
CC:     Xiaoliang Yang <xiaoliang.yang_1@....com>
Subject: RE: [v1,net-next 1/3] net:enetc: allocate CBD ring data memory using
 DMA coherent methods

> -----Original Message-----
> From: Po Liu <po.liu@....com>
[...]
> Subject: [v1,net-next 1/3] net:enetc: allocate CBD ring data memory using
> DMA coherent methods
> 
> To replace the dma_map_single() stream DMA mapping with DMA coherent
> method dma_alloc_coherent() which is more simple.
> 
> dma_map_single() found by Tim Gardner not proper. Suggested by Claudiu
> Manoil and Jakub Kicinski to use dma_alloc_coherent(). Discussion at:
> 
> https://lore.kernel.org/netdev/AM9PR04MB8397F300DECD3C44D2EBD07796
> BD9@...PR04MB8397.eurprd04.prod.outlook.com/t/
> 
> Fixes: 888ae5a3952ba ("net: enetc: add tc flower psfp offload driver")
> cc: Claudiu Manoil <claudiu.manoil@....com>
> Reported-by: Tim Gardner <tim.gardner@...onical.com>
> Signed-off-by: Po Liu <po.liu@....com>

Thanks, Po.

Reviewed-by: Claudiu Manoil <claudiu.manoil@....com>