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Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Dong Aisheng , Fabio Estevam , Shawn Guo , Jacky Bai , Pengutronix Kernel Team , NXP S32 Linux Team , Sascha Hauer , Tony Lindgren , Haojian Zhuang , Geert Uytterhoeven , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-hardening@vger.kernel.org, linux-mm@kvack.org, imx@lists.linux.dev, linux-omap@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Bartosz Golaszewski Subject: Re: [PATCH v3 01/15] lib: provide kmemdup_const() Message-ID: <5c7edf57-bf13-4633-8348-791e0620cc79@lucifer.local> References: <20250724-pinctrl-gpio-pinfuncs-v3-0-af4db9302de4@linaro.org> <20250724-pinctrl-gpio-pinfuncs-v3-1-af4db9302de4@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-ClientProxiedBy: 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a=IkcTkHD0fZMA:10 a=Wb1JkmetP80A:10 a=GoEa3M9JfhUA:10 a=yPCof4ZbAAAA:8 a=uyqBjnzlUpQ3w6metvMA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=zZCYzV9kfG8A:10 On Thu, Jul 24, 2025 at 01:12:49PM +0200, Andy Shevchenko wrote: > On Thu, Jul 24, 2025 at 1:10 PM Lorenzo Stoakes > wrote: > > On Thu, Jul 24, 2025 at 11:24:29AM +0200, Bartosz Golaszewski wrote: > > > +extern const void *kmemdup_const(const void *src, size_t len, gfp_t gfp); > > > > Please drop extern, it's unnecessary. > > It's all over the header. This should be done as a precursor patch and > I know that usually people push back on doing that. I gave up on this. > Kernel is going to rot sooner or later... :-( In mm we just update as we go, this is probably the best approach to avoid unnecessary churn.