linux-kernel - Re: [PATCH net-next 1/1] net: stmmac: Add support for HW-accelerated VLAN stripping

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Message-ID: <b7bd1b0c-5203-4071-95c6-ada047010687@lunn.ch>
Date:   Thu, 9 Nov 2023 17:17:14 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Gan Yi Fang <yi.fang.gan@...el.com>
Cc:     Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Andrew Halaney <ahalaney@...hat.com>,
        Simon Horman <horms@...nel.org>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        Shenwei Wang <shenwei.wang@....com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Johannes Zink <j.zink@...gutronix.de>,
        Jochen Henneberg <jh@...neberg-systemdesign.com>,
        netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Looi Hong Aun <hong.aun.looi@...el.com>,
        Voon Weifeng <weifeng.voon@...el.com>,
        Song Yoong Siang <yoong.siang.song@...el.com>
Subject: Re: [PATCH net-next 1/1] net: stmmac: Add support for HW-accelerated
 VLAN stripping

> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
> @@ -198,6 +198,17 @@ static int dwmac4_get_tx_ls(struct dma_desc *p)
>  		>> TDES3_LAST_DESCRIPTOR_SHIFT;
>  }
>  
> +static inline int dwmac4_wrback_get_rx_vlan_tci(struct dma_desc *p)
> +{
> +	return (le32_to_cpu(p->des0) & RDES0_VLAN_TAG_MASK);
> +}
> +
> +static inline bool dwmac4_wrback_get_rx_vlan_valid(struct dma_desc *p)
> +{
> +	return ((le32_to_cpu(p->des3) & RDES3_LAST_DESCRIPTOR) &&
> +		(le32_to_cpu(p->des3) & RDES3_RDES0_VALID));
> +}

No inline functions in C files please. Let the compiler decide.

You are submitting a number of patches for this driver. Do they all
cleanly apply independent of each other? Or are there dependencies?

	Andrew