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Tue, 21 Apr 2020 09:33:45 +0000 (UTC) Date: Tue, 21 Apr 2020 17:33:43 +0800 From: Baoquan He To: Mike Rapoport Subject: Re: [PATCH 02/21] mm: make early_pfn_to_nid() and related defintions close to each other Message-ID: <20200421093343.GR4247@MiWiFi-R3L-srv> References: <20200412194859.12663-1-rppt@kernel.org> <20200412194859.12663-3-rppt@kernel.org> <20200421022435.GP4247@MiWiFi-R3L-srv> <20200421084935.GB14260@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200421084935.GB14260@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rich Felker , linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, Catalin Marinas , Heiko Carstens , Michal Hocko , "James E.J. Bottomley" , Max Filippov , Guo Ren , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, Greg Ungerer , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-c6x-dev@linux-c6x.org, Brian Cain , Jonathan Corbet , linux-sh@vger.kernel.org, Helge Deller , x86@kernel.org, Russell King , Ley Foon Tan , Mike Rapoport , Geert Uytterhoeven , linux-arm-kernel@lists.infradead.org, Mark Salter , Matt Turner , linux-mips@vger.kernel.org, uclinux-h8-devel@lists.sourceforge.jp, linux-xtensa@linux-xtensa.org, linux-alpha@vger.kernel.org, linux-um@lists.infradead.org, linux-m68k@lists.linux-m68k.org, Tony Luck , Greentime Hu , Paul Walmsley , Stafford Horne , Guan Xuetao , Hoan Tran , Michal Simek , Thomas Bogendoerfer , Yoshinori Sato , Nick Hu , linux-mm@kvack.org, Vineet Gupta , linux-kernel@vger.kernel.org, openrisc@lists.librecores.org, Richard Weinberger , Andrew Morton , linuxppc-dev@lists.ozlabs.org, "David S. Miller" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 04/21/20 at 11:49am, Mike Rapoport wrote: > On Tue, Apr 21, 2020 at 10:24:35AM +0800, Baoquan He wrote: > > On 04/12/20 at 10:48pm, Mike Rapoport wrote: > > > From: Mike Rapoport > > > > > > The early_pfn_to_nid() and it's helper __early_pfn_to_nid() are spread > > > around include/linux/mm.h, include/linux/mmzone.h and mm/page_alloc.c. > > > > > > Drop unused stub for __early_pfn_to_nid() and move its actual generic > > > implementation close to its users. > > > > > > Signed-off-by: Mike Rapoport > > > --- > > > include/linux/mm.h | 4 ++-- > > > include/linux/mmzone.h | 9 -------- > > > mm/page_alloc.c | 51 +++++++++++++++++++++--------------------- > > > 3 files changed, 27 insertions(+), 37 deletions(-) > > > > > > diff --git a/include/linux/mm.h b/include/linux/mm.h > > > index 5a323422d783..a404026d14d4 100644 > > > --- a/include/linux/mm.h > > > +++ b/include/linux/mm.h > > > @@ -2388,9 +2388,9 @@ extern void sparse_memory_present_with_active_regions(int nid); > > > > > > #if !defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP) && \ > > > !defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID) > > > -static inline int __early_pfn_to_nid(unsigned long pfn, > > > - struct mminit_pfnnid_cache *state) > > > +static inline int early_pfn_to_nid(unsigned long pfn) > > > { > > > + BUILD_BUG_ON(IS_ENABLED(CONFIG_NUMA)); > > > return 0; > > > } > > > > It's better to make a separate patch to drop __early_pfn_to_nid() here. > > Not sure it's really worth it. > This patch anyway only moves the code around without any actual changes. OK, it's fine to me.