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Wed, 21 Aug 2019 08:46:49 -0400 (EDT) Received: from xanadu.home (xanadu.home [192.168.2.2]) by yoda.home (Postfix) with ESMTPSA id 0CE5A2DA023B; Wed, 21 Aug 2019 08:46:48 -0400 (EDT) Date: Wed, 21 Aug 2019 08:46:47 -0400 (EDT) From: Nicolas Pitre To: Matthias Maennich Subject: Re: [PATCH v3 00/11] Symbol Namespaces In-Reply-To: <20190821114955.12788-1-maennich@google.com> Message-ID: References: <20190813121733.52480-1-maennich@google.com> <20190821114955.12788-1-maennich@google.com> User-Agent: Alpine 2.21 (LFD 202 2017-01-01) MIME-Version: 1.0 X-Pobox-Relay-ID: BDE512AC-C411-11E9-A63C-46F8B7964D18-78420484!pb-smtp1.pobox.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190821_060527_584235_B033F56C X-CRM114-Status: GOOD ( 10.03 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kstewart@linuxfoundation.org, oneukum@suse.com, linux-stm32@st-md-mailman.stormreply.com, linux-aspeed@lists.ozlabs.org, usb-storage@lists.one-eyed-alien.net, Toru Komatsu , Mauro Carvalho Chehab , Nicolas Ferre , David Howells , yamada.masahiro@socionext.com, Will Deacon , patches@opensource.cirrus.com, Michael Ellerman , hpa@zytor.com, joel@joelfernandes.org, bcm-kernel-feedback-list@broadcom.com, sam@ravnborg.org, cocci@systeme.lip6.fr, linux-arch@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Benjamin Fair , linux-scsi@vger.kernel.org, Fabio Estevam , openbmc@lists.ozlabs.org, x86@kernel.org, lucas.de.marchi@gmail.com, Nancy Yuen , mingo@redhat.com, geert@linux-m68k.org, NXP Linux Team , Johannes Weiner , Patrick Venture , stern@rowland.harvard.edu, kernel-team@android.com, Ingo Molnar , linux-rtc@vger.kernel.org, Gleb Fotengauer-Malinovskiy , sspatil@google.com, linux-watchdog@vger.kernel.org, Arnd Bergmann , linux-kbuild@vger.kernel.org, Jani Nikula , linux-arm-msm@vger.kernel.org, jeyu@kernel.org, Dan Williams , Julia Lawall , linux-m68k@lists.linux-m68k.org, linux-mediatek@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, linux-amlogic@lists.infradead.org, tglx@linutronix.de, maco@android.com, linux-arm-kernel@lists.infradead.org, Adrian Reber , linux-hwmon@vger.kernel.org, michal.lkml@markovi.net, Ard Biesheuvel , Andrew Jeffery , gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, Alexey Gladkov , linux-kernel@vger.kernel.org, Patrick Bellasi , Richard Guy Briggs , maco@google.com, Pengutronix Kernel Team , pombredanne@nexb.com, Tejun Heo , Andrew Morton , "David S. Miller" , linux-modules@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On Wed, 21 Aug 2019, Matthias Maennich wrote: > As of Linux 5.3-rc5, there are 31205 [1] exported symbols in the kernel. > That is a growth of roughly 1000 symbols since 4.17 (30206 [2]). There > seems to be some consensus amongst kernel devs that the export surface > is too large, and hard to reason about. This is good work. One solution for drastically reducing the effective export surface is to have CONFIG_TRIM_UNUSED_KSYMS=y. This is more extreme than symbol namespace, but might be worth mentioning nevertheless. Nicolas _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic