linux-kernel - Re: [PATCH] amd-xgbe: fix mismatched prototype

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Message-ID: <20230206222839.0df937c9@kernel.org>
Date:   Mon, 6 Feb 2023 22:28:39 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Shyam Sundar S K <Shyam-sundar.S-k@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Raju Rangoju <Raju.Rangoju@....com>,
        Arnd Bergmann <arnd@...db.de>,
        Tom Lendacky <thomas.lendacky@....com>,
        Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] amd-xgbe: fix mismatched prototype

On Fri,  3 Feb 2023 13:15:36 +0100 Arnd Bergmann wrote:
> The forward declaration was introduced with a prototype that does
> not match the function definition:
> 
> drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c:2166:13: error: conflicting types for 'xgbe_phy_perform_ratechange' due to enum/integer mismatch; have 'void(struct xgbe_prv_data *, enum xgbe_mb_cmd,  enum xgbe_mb_subcmd)' [-Werror=enum-int-mismatch]
>  2166 | static void xgbe_phy_perform_ratechange(struct xgbe_prv_data *pdata,
>       |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c:391:13: note: previous declaration of 'xgbe_phy_perform_ratechange' with type 'void(struct xgbe_prv_data *, unsigned int,  unsigned int)'
>   391 | static void xgbe_phy_perform_ratechange(struct xgbe_prv_data *pdata,
>       |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Thanks for the fix. What's the compiler / extra flags you're using?
Doesn't pop up on our setups..