linux-kernel - Re: [PATCH net-next v6 5/6] stmmac: dwmac-mediatek: add support for mt8195

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Message-ID: <20211207200450.093f94a8@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Tue, 7 Dec 2021 20:04:50 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Biao Huang <biao.huang@...iatek.com>
Cc:     <davem@...emloft.net>, Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <srv_heupstream@...iatek.com>, <macpaul.lin@...iatek.com>,
        <angelogioacchino.delregno@...labora.com>, <dkirjanov@...e.de>
Subject: Re: [PATCH net-next v6 5/6] stmmac: dwmac-mediatek: add support for
 mt8195

On Wed, 8 Dec 2021 11:03:53 +0800 Biao Huang wrote:
> Add Ethernet support for MediaTek SoCs from the mt8195 family.
> 
> Signed-off-by: Biao Huang <biao.huang@...iatek.com>
> Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c:439:3: warning: variable 'gtxc_delay_val' is uninitialized when used here [-Wuninitialized]
                gtxc_delay_val |= FIELD_PREP(MT8195_DLY_GTXC_ENABLE, !!mac_delay->tx_delay);
                ^~~~~~~~~~~~~~
drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c:369:20: note: initialize the variable 'gtxc_delay_val' to silence this warning
        u32 gtxc_delay_val, delay_val = 0, rmii_delay_val = 0;
                          ^
                           = 0
1 warning generated.
drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c:439:3: warning: variable 'gtxc_delay_val' is uninitialized when used here [-Wuninitialized]
                gtxc_delay_val |= FIELD_PREP(MT8195_DLY_GTXC_ENABLE, !!mac_delay->tx_delay);
                ^~~~~~~~~~~~~~
drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c:369:20: note: initialize the variable 'gtxc_delay_val' to silence this warning
        u32 gtxc_delay_val, delay_val = 0, rmii_delay_val = 0;
                          ^
                           = 0