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Received: from shell.armlinux.org.uk ([2001:4d48:ad52:3201:5054:ff:fe00:4ec]:37270) by pandora.armlinux.org.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jWlbV-0006pJ-LY; Thu, 07 May 2020 19:50:41 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1jWlbL-0000zz-3p; Thu, 07 May 2020 19:50:31 +0100 Date: Thu, 7 May 2020 19:50:31 +0100 From: Russell King - ARM Linux admin To: Florian Fainelli Subject: Re: [PATCH 1/2] ARM: Remove redundant ARCH_SPARSEMEM_DEFAULT setting Message-ID: <20200507185030.GT1551@shell.armlinux.org.uk> References: <20200506235009.25023-1-f.fainelli@gmail.com> <20200506235009.25023-2-f.fainelli@gmail.com> <20200507103039.GR1551@shell.armlinux.org.uk> <3e7ee3ba-fae9-0ec3-fe1f-c076fc28aba9@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <3e7ee3ba-fae9-0ec3-fe1f-c076fc28aba9@gmail.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200507_115051_349509_E0068529 X-CRM114-Status: GOOD ( 15.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Doug Berger , Arnd Bergmann , sboyd@kernel.org, Kevin Cernekee , Mike Rapoport , Gregory Fong , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, May 07, 2020 at 10:25:16AM -0700, Florian Fainelli wrote: > > > On 5/7/2020 3:30 AM, Russell King - ARM Linux admin wrote: > > On Wed, May 06, 2020 at 04:50:08PM -0700, Florian Fainelli wrote: > >> From: Kevin Cernekee > >> > >> If ARCH_SPARSEMEM_ENABLE=y and ARCH_{FLATMEM,DISCONTIGMEM}_ENABLE=n, > >> then the logic in mm/Kconfig already makes CONFIG_SPARSEMEM the only > >> choice. This is true for all of the existing ARM users of > >> ARCH_SPARSEMEM_ENABLE. > >> > >> Forcing ARCH_SPARSEMEM_DEFAULT=y if ARCH_SPARSEMEM_ENABLE=y prevents > >> us from ever defaulting to FLATMEM, so we should remove this setting. > > > > No explanation why that is desirable. > > This was explained in the original submission out of which only the > first patch landed upstream: > > https://lkml.org/lkml/2015/6/4/756 Sorry, I don't see where. The message you link to is for patch 1. I'd say that the reason only the first patch landed is because that's all I was happy with. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel