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Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:38218) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1w9n5j-000000008Ja-1kAT; Mon, 06 Apr 2026 17:46:23 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1w9n5g-000000001Re-2IJt; Mon, 06 Apr 2026 17:46:20 +0100 Date: Mon, 6 Apr 2026 17:46:20 +0100 From: "Russell King (Oracle)" To: Geert Uytterhoeven Cc: Julian Braha , davem@davemloft.net, peppe.cavallaro@st.com, alexandre.torgue@foss.st.com, mcoquelin.stm32@gmail.com, kuba@kernel.org, netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] stmmac: cleanup dead dependencies on STMMAC_PLATFORM and STMMAC_ETH in Kconfig Message-ID: References: <20260402145858.240231-1-julianbraha@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260406_094635_086699_A6906A62 X-CRM114-Status: GOOD ( 20.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Apr 06, 2026 at 10:23:46AM +0200, Geert Uytterhoeven wrote: > Hi Julian, > > On Thu, 2 Apr 2026 at 17:07, Julian Braha wrote: > > There are already 'if STMMAC_ETH' and 'STMMAC_PLATFORM' > > conditions wrapping these config options, making the > > 'depends on' statements duplicate dependencies (dead code). > > > > I propose leaving the outer 'if STMMAC_PLATFORM...endif' and > > 'if STMMAC_ETH...endif' conditions, and removing the > > individual 'depends on' statements. > > > > This dead code was found by kconfirm, a static analysis tool for Kconfig. > > > > Signed-off-by: Julian Braha > > Reviewed-by: Russell King (Oracle) > > --- > > v2: add back default STMMAC_PLATFORM for DWMAC_GENERIC > > Link to v1: https://lore.kernel.org/all/20260331125817.117091-1-julianbraha@gmail.com/ > > Thanks for your patch, which is now commit e2f152c822cf5d37 ("stmmac: > cleanup dead dependencies on STMMAC_PLATFORM and STMMAC_ETH in > Kconfig") in net-next. > > > --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig > > +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig > > @@ -20,7 +20,6 @@ if STMMAC_ETH > > config STMMAC_SELFTESTS > > bool "Support for STMMAC Selftests" > > depends on INET > > - depends on STMMAC_ETH > > default n > > help > > This adds support for STMMAC Selftests using ethtool. Enable this > > @@ -29,7 +28,6 @@ config STMMAC_SELFTESTS > > > > config STMMAC_PLATFORM > > tristate "STMMAC Platform bus support" > > - depends on STMMAC_ETH > > select MFD_SYSCON > > default y > > This now lets us have STMMAC_PLATFORM=y and STMMAC_ETH=m. > Does that actually link? Really? Let's try forcing it: CONFIG_STMMAC_ETH=m CONFIG_STMMAC_SELFTESTS=y CONFIG_STMMAC_PLATFORM=y and make oldconfig... STMicroelectronics Multi-Gigabit Ethernet driver (STMMAC_ETH) [M/n/y/?] m Support for STMMAC Selftests (STMMAC_SELFTESTS) [Y/n/?] y STMMAC Platform bus support (STMMAC_PLATFORM) [M/n/?] m CONFIG_STMMAC_PLATFORM is forced to 'm'. 'y' is not permitted. I think you're mistaken. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!