From nobody Mon Apr 6 09:10:45 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B882A34575A; Fri, 20 Mar 2026 22:14:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774044853; cv=none; b=FLUvxR2PVgSObVUtxID6lZTvJTlYghqr6iQ8Hm/+X2xDNyLdeB7z0+nrALOzL3RVy9p/6BVktaqopqhrX0DmFWYUhRFH0irLOHNT0nuEpTyrW5dpCu1pFPS2eZvmF56kk1vE1gJ5aS/f++/COSuRD1iiSby4MpncVrddBG/mTCI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774044853; c=relaxed/simple; bh=QZECcZOo9XU6VE0O+G1ptFNqIVCOuWAko6C1OasJr/U=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=O5r9+5KCvkKHwOA5rmbT+3+4PR9d/Iw6+XxNMKBWiQxTaaX5bohE2qNm25W/2haWECvHu2GeFNA6Dn8p67So1pyjNWULqw0+wzYst1huHbDT690KsBSWlbI79uAuUo52z/DJ6pLL3l0tjY0BAo5fAMyW1H+3J6eWK3TDDa3/EwY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BYJKP7zl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BYJKP7zl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD735C2BCB6; Fri, 20 Mar 2026 22:14:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774044853; bh=QZECcZOo9XU6VE0O+G1ptFNqIVCOuWAko6C1OasJr/U=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=BYJKP7zlv4jBTvu80a24WL8Ct5aU4DcbuPl7DomVKZQywcFSHmDul15sUSZzpOS9w VGpkVDDKudEKjzp330WynQpTZJarltWaw0dHJ3u7eeAic+bRO3z2vaoJXKeKE8CzXJ Hlir4vVzCgO/f2OKDKqS8rRg5eQw0Vi39t7NMLD4x1kMCvNqs1ghvWraXEpRmdgbkJ ouDmSeYe65LVeauMLiEz99LE6nUEBfU2ntRObRZhG73T8ceIv43bw4PDm71NWkHgYS M2POdUrqX1hIGxGX4jWTxYwJH7i/lYl4bma2SJk/M0epQ5B85WZGwtmdA9RUsRNrzD BZVwwK53Fv3qA== From: "David Hildenbrand (Arm)" Date: Fri, 20 Mar 2026 23:13:39 +0100 Subject: [PATCH v2 07/15] mm/bootmem_info: remove handling for !CONFIG_SPARSEMEM_VMEMMAP Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260320-sparsemem_cleanups-v2-7-096addc8800d@kernel.org> References: <20260320-sparsemem_cleanups-v2-0-096addc8800d@kernel.org> In-Reply-To: <20260320-sparsemem_cleanups-v2-0-096addc8800d@kernel.org> To: linux-kernel@vger.kernel.org Cc: Andrew Morton , Oscar Salvador , Axel Rasmussen , Yuanchu Xie , Wei Xu , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Sidhartha Kumar , linux-mm@kvack.org, linux-cxl@vger.kernel.org, linux-riscv@lists.infradead.org, "David Hildenbrand (Arm)" X-Mailer: b4 0.13.0 It is not immediately obvious that CONFIG_HAVE_BOOTMEM_INFO_NODE is only selected from CONFIG_MEMORY_HOTREMOVE, which itself depends on CONFIG_MEMORY_HOTPLUG that ... depends on CONFIG_SPARSEMEM_VMEMMAP. Let's remove the !CONFIG_SPARSEMEM_VMEMMAP leftovers that are dead code. Reviewed-by: Lorenzo Stoakes (Oracle) Reviewed-by: Mike Rapoport (Microsoft) Signed-off-by: David Hildenbrand (Arm) --- mm/bootmem_info.c | 37 ------------------------------------- 1 file changed, 37 deletions(-) diff --git a/mm/bootmem_info.c b/mm/bootmem_info.c index b0e2a9fa641f..e61e08e24924 100644 --- a/mm/bootmem_info.c +++ b/mm/bootmem_info.c @@ -40,42 +40,6 @@ void put_page_bootmem(struct page *page) } } =20 -#ifndef CONFIG_SPARSEMEM_VMEMMAP -static void __init register_page_bootmem_info_section(unsigned long start_= pfn) -{ - unsigned long mapsize, section_nr, i; - struct mem_section *ms; - struct page *page, *memmap; - struct mem_section_usage *usage; - - section_nr =3D pfn_to_section_nr(start_pfn); - ms =3D __nr_to_section(section_nr); - - /* Get section's memmap address */ - memmap =3D sparse_decode_mem_map(ms->section_mem_map, section_nr); - - /* - * Get page for the memmap's phys address - * XXX: need more consideration for sparse_vmemmap... - */ - page =3D virt_to_page(memmap); - mapsize =3D sizeof(struct page) * PAGES_PER_SECTION; - mapsize =3D PAGE_ALIGN(mapsize) >> PAGE_SHIFT; - - /* remember memmap's page */ - for (i =3D 0; i < mapsize; i++, page++) - get_page_bootmem(section_nr, page, SECTION_INFO); - - usage =3D ms->usage; - page =3D virt_to_page(usage); - - mapsize =3D PAGE_ALIGN(mem_section_usage_size()) >> PAGE_SHIFT; - - for (i =3D 0; i < mapsize; i++, page++) - get_page_bootmem(section_nr, page, MIX_SECTION_INFO); - -} -#else /* CONFIG_SPARSEMEM_VMEMMAP */ static void __init register_page_bootmem_info_section(unsigned long start_= pfn) { unsigned long mapsize, section_nr, i; @@ -100,7 +64,6 @@ static void __init register_page_bootmem_info_section(un= signed long start_pfn) for (i =3D 0; i < mapsize; i++, page++) get_page_bootmem(section_nr, page, MIX_SECTION_INFO); } -#endif /* !CONFIG_SPARSEMEM_VMEMMAP */ =20 void __init register_page_bootmem_info_node(struct pglist_data *pgdat) { --=20 2.43.0