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[67.0.26.4]) by smtp.gmail.com with ESMTPSA id o83sm2061039ild.13.2019.12.04.11.38.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Dec 2019 11:38:50 -0800 (PST) Date: Wed, 4 Dec 2019 11:38:49 -0800 (PST) From: Paul Walmsley X-X-Sender: paulw@viisi.sifive.com To: Alistair Francis Subject: Re: [GIT PULL] Second set of RISC-V updates for v5.5-rc1 In-Reply-To: <9044bad02aa6553cdb2523294500b50fccf3fd2a.camel@wdc.com> Message-ID: References: <9044bad02aa6553cdb2523294500b50fccf3fd2a.camel@wdc.com> User-Agent: Alpine 2.21.9999 (DEB 301 2018-08-15) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191204_113852_577841_67BC83AD X-CRM114-Status: UNSURE ( 9.19 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "anup@brainfault.org" , "linux-kernel@vger.kernel.org" , Atish Patra , "linux-riscv@lists.infradead.org" , "torvalds@linux-foundation.org" , "hch@lst.de" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org Alistair, Anup, On Wed, 4 Dec 2019, Alistair Francis wrote: > On Wed, 2019-12-04 at 18:22 +0530, Anup Patel wrote: > > > I had commented on your patch but my comments are still > > not addressed. > > > > Various debug options enabled by this patch have performance > > impact. Instead of enabling these debug options in primary > > defconfigs, I suggest to have separate debug defconfigs with > > these options enabled. > > +1 > > OE uses the defconfig (as I'm sure other distros do) and slowing down > users seems like a bad idea. While I respect your points of view, our defconfigs are oriented towards kernel developers. This is particularly important when right now the only RISC-V hardware on the market are test chips. Our expectation is that distros and benchmarkers will create their own Kconfigs for their needs. Going forward, we'll probably add a few more validation and debug options, as Palmer suggested during the patch discussion. - Paul