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Tue, 12 May 2026 08:43:25 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id aOwfMi3oAmqfCgAAD6G6ig (envelope-from ); Tue, 12 May 2026 08:43:25 +0000 Date: Tue, 12 May 2026 10:43:20 +0200 From: Oscar Salvador To: "David Hildenbrand (Arm)" Cc: "David S. Miller" , Andreas Larsson , Mike Rapoport , Andrew Morton , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH 8/8] powerpc/mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE Message-ID: References: <20260511-bootmem_info_prep-v1-0-3fb0be6fc688@kernel.org> <20260511-bootmem_info_prep-v1-8-3fb0be6fc688@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260511-bootmem_info_prep-v1-8-3fb0be6fc688@kernel.org> X-Stat-Signature: hufn31cmepwugkcb8zfh8knzybkwm69g X-Rspam-User: X-Rspamd-Queue-Id: A030F4000A X-Rspamd-Server: rspam07 X-HE-Tag: 1778575412-436688 X-HE-Meta: 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 Wiz7YYbU peDB/l37hOrlv6bithADbZ42uLcKWHMQN3A/lyLEdoCHiixTvvFsTa64VPZGHXWfMBDbtoLJQvVmlhiHPw58/cFMyxUBJHEB5pkqIiNQKeFzeadx2e2dcu0hZk1Yftv7WN1jgfhjs3ZvLReZ2cc3VBC//EU1P5sLa823sxoz5tJgnavuFjC4PmTkN08tRD1p2lrB2YXp0JNp82uK5VQHdVIdQnqafurfsCcGOqJju+zNkMJarLyjbR3oJ/5bitjZlbD7G+9y7AZiiPcmkegx886Afm6X0DRmX/sH6EDCFH7My2HwcVDU0vl97+YOg+URQRbowpwhSYwWVdkSYTFjiEi6RiZlCGrnlM+WQOGQfNc7grEeDkuWzI+YOmQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, May 11, 2026 at 04:05:36PM +0200, David Hildenbrand (Arm) wrote: > register_page_bootmem_info_node() essentially only calls > register_page_bootmem_memmap(). However, on powerpc that function is a > nop. So there is not benefit in using CONFIG_HAVE_BOOTMEM_INFO_NODE > anymore, let's just drop it. > > We can stop including bootmem_info.h. > > Signed-off-by: David Hildenbrand (Arm) Acked-by: Oscar Salvador > --- > arch/powerpc/mm/init_64.c | 8 -------- > mm/Kconfig | 2 +- > 2 files changed, 1 insertion(+), 9 deletions(-) > > diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c > index b6f3ae03ca9e..64f0df5bb5cd 100644 > --- a/arch/powerpc/mm/init_64.c > +++ b/arch/powerpc/mm/init_64.c > @@ -41,7 +41,6 @@ > #include > #include > #include > -#include > > #include > #include > @@ -388,13 +387,6 @@ void __ref vmemmap_free(unsigned long start, unsigned long end, > > #endif > > -#ifdef CONFIG_HAVE_BOOTMEM_INFO_NODE > -void register_page_bootmem_memmap(unsigned long section_nr, > - struct page *start_page, unsigned long size) > -{ > -} > -#endif /* CONFIG_HAVE_BOOTMEM_INFO_NODE */ > - > #endif /* CONFIG_SPARSEMEM_VMEMMAP */ > > #ifdef CONFIG_PPC_BOOK3S_64 > diff --git a/mm/Kconfig b/mm/Kconfig > index e221fa1dc54d..97b079372325 100644 > --- a/mm/Kconfig > +++ b/mm/Kconfig > @@ -537,7 +537,7 @@ endchoice > > config MEMORY_HOTREMOVE > bool "Allow for memory hot remove" > - select HAVE_BOOTMEM_INFO_NODE if (X86_64 || PPC64) > + select HAVE_BOOTMEM_INFO_NODE if X86_64 > depends on MEMORY_HOTPLUG > select MIGRATION > > > -- > 2.43.0 > > -- Oscar Salvador SUSE Labs