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Message-Id: <7f46f5c0-a5cb-4e4f-9201-2fd06e92e1ef@app.fastmail.com> Date: Thu, 25 May 2023 22:05:01 +0200 From: "Arnd Bergmann" <arnd@...db.de> To: "Sasha Levin" <sashal@...nel.org>, linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: "Jakub Kicinski" <kuba@...nel.org>, "Andrew Lunn" <andrew@...n.ch>, "Heiner Kallweit" <hkallweit1@...il.com>, Netdev <netdev@...r.kernel.org> Subject: Re: [PATCH AUTOSEL 4.14 20/20] mdio_bus: unhide mdio_bus_init prototype On Thu, May 25, 2023, at 20:45, Sasha Levin wrote: > From: Arnd Bergmann <arnd@...db.de> > > [ Upstream commit 2e9f8ab68f42b059e80db71266c1675c07c664bd ] > > mdio_bus_init() is either used as a local module_init() entry, > or it gets called in phy_device.c. In the former case, there > is no declaration, which causes a warning: > > drivers/net/phy/mdio_bus.c:1371:12: error: no previous prototype for > 'mdio_bus_init' [-Werror=missing-prototypes] > > Remove the #ifdef around the declaration to avoid the warning.. Hi Sasha, While there is nothing wrong with backporting the -Wmissing-prototypes warning fixes I sent, there is also really no point unless you want to backport all 140 of them and then also turn on that warning during testing. The option is only enabled at the W=1 level or when using sparse (C=1). I hope to get these all done in 6.5 for the most common architectures, but I wouldn't bother putting them into stable kernels. Arnd
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