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[67.0.26.4]) by smtp.gmail.com with ESMTPSA id e1sm2365633ill.47.2019.12.04.19.03.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Dec 2019 19:03:20 -0800 (PST) Date: Wed, 4 Dec 2019 19:03:19 -0800 (PST) From: Paul Walmsley X-X-Sender: paulw@viisi.sifive.com To: Anup Patel Subject: Re: [PATCH] RISC-V: Add debug defconfigs In-Reply-To: <20191205005601.1559-1-anup.patel@wdc.com> Message-ID: References: <20191205005601.1559-1-anup.patel@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_190322_582862_861C0E96 X-CRM114-Status: UNSURE ( 8.52 ) 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: Albert Ou , Anup Patel , "linux-kernel@vger.kernel.org" , Atish Patra , Alistair Francis , Palmer Dabbelt , "linux-riscv@lists.infradead.org" , Christoph Hellwig Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org On Thu, 5 Dec 2019, Anup Patel wrote: > Various Linux kernel DEBUG options have big performance impact > so these should not be enabled in RISC-V normal defconfigs. > > Instead we should have separate RISC-V debug defconfigs having > these DEBUG options enabled. This way Linux RISC-V can build both > non-debug and debug kernels separately. I respect your point of view, but until the RISC-V kernel port is more mature, I personally am not planning to merge this patch, for reasons discussed in the defconfig patch descriptions and the subsequent pull request threads. I'm sure we'll revisit this in the future to realign with the defconfig debug settings for more mature architecture ports - but my guess is that we'll probably avoid creating debug_defconfigs, since only S390 does that. - Paul