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Peter Anvin" , Andy Lutomirski , Paul Walmsley , Palmer Dabbelt , Albert Ou , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Guo Ren Cc: linux-fsdevel@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-ia64@vger.kernel.org, linux-csky@vger.kernel.org References: <20230906-jag-sysctl_remove_empty_elem_arch-v1-0-3935d4854248@samsung.com> <20230906-jag-sysctl_remove_empty_elem_arch-v1-3-3935d4854248@samsung.com> From: Dave Hansen In-Reply-To: <20230906-jag-sysctl_remove_empty_elem_arch-v1-3-3935d4854248@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230906_074511_973708_74157F0A X-CRM114-Status: GOOD ( 13.04 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 9/6/23 03:03, Joel Granados via B4 Relay wrote: > This commit comes at the tail end of a greater effort to remove the > empty elements at the end of the ctl_table arrays (sentinels) which > will reduce the overall build time size of the kernel and run time > memory bloat by ~64 bytes per sentinel (further information Link : > https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/) > > Remove sentinel element from sld_sysctl and itmt_kern_table. There's a *LOT* of content to read for a reviewer to figure out what's going on here between all the links. I would have appreciated one more sentence here, maybe: This is now safe because the sysctl registration code (register_sysctl()) implicitly uses ARRAY_SIZE() in addition to checking for a sentinel. That needs to be more prominent _somewhere_. Maybe here, or maybe in the cover letter, but _somewhere_. That said, feel free to add this to the two x86 patches: Acked-by: Dave Hansen # for x86 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel