From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 3ECA43B840F; Tue, 22 Sep 2026 04:25:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790051161; cv=none; b=RKyyxWI4Gm9VNoGodWv9JR/6xmSUg4uSNh/mO6vALkSc5J2kFwLEKBDQFbYWl/LAOCZ8r0OQ7qyWbatKB7wnrCbI66SAJUTuykP375178qIy5I3Giaa+INM415XnjEDqQ7ZP2Wr7zlsVT6D4YMoV0y5aopHx0sMgvT5Zf64IGLc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790051161; c=relaxed/simple; bh=lekNrCeizC80DsGXP6pOl7QXhc03K2jyvI0Q4G/xeCo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=cpIncmsKl4WolDHbX0Hai5ugwhpRnaixaHJQHCi0HVx7c4/OiT/xgk1P2gY2BGaBvUtJYSiv+b9ccBZOhjUFQell2aj5zVvuXhqglWkNldY/mkYlZxtiiSh4FzELqxqJHko7MZHfGItYYKg51YwrcqWPh9+B5vlKQO7DpqpqM6Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ER3J5r3V; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ER3J5r3V" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 14A901F00898; Tue, 22 Sep 2026 04:25:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790051159; bh=D28fmX0v2APqwSVoGcnG1C5Rh5Hd9l3BseXRfD4IHME=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=ER3J5r3VzZNuMuHQZZdT2tmD/sauynFhocssTfXIyQ+aeQ6bHpu8UA/btjPDGg3MH NfePtUdGHG+QdKUDw/Hf0NGR7IZE7GwghF/aWpWREdZXIu24P6AHSeBPDeGCLdrDIx Wo2hVOEZoDUAtcCdLZA3wprGabCwotwqb5oR8Sxge67tTTQNIQJfd0/VaVOMDx61j7 +cDtnjNI9J99y88D82hGsEYUaZkrWCSbySiRs5MQTyfbTWfoiTKsRuMG4xw3dJF/61 wFzzJtYuXoUWfMMZjp6HroZWXyPWrA8cZ9PVa08HOFKF79taCFtsp8GJ7ykAzcwjQk z8EZnhQvf7G5A== Date: Tue, 22 Sep 2026 06:25:50 +0200 From: "Oscar Salvador (SUSE)" To: "David Hildenbrand (Arm)" Cc: Andrew Morton , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Kairui Song , Qi Zheng , Shakeel Butt , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , Baoquan He , Baolin Wang , Brendan Jackman , Johannes Weiner , Zi Yan , Jan Kiszka , Kieran Bingham , Oscar Salvador , Greg Kroah-Hartman , "Rafael J. Wysocki" , Danilo Krummrich , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-cxl@vger.kernel.org, driver-core@lists.linux.dev, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH v2 13/13] mm/memory_hotplug: drop CONFIG_HAVE_ARCH_PFN_VALID handling from pfn_to_online_page() Message-ID: References: <20260921-b4-sparsemem_cleanups-v2-0-54d81d65e125@kernel.org> <20260921-b4-sparsemem_cleanups-v2-13-54d81d65e125@kernel.org> 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=us-ascii Content-Disposition: inline In-Reply-To: <20260921-b4-sparsemem_cleanups-v2-13-54d81d65e125@kernel.org> On Mon, Sep 21, 2026 at 09:59:05PM +0200, David Hildenbrand (Arm) wrote: > Drop CONFIG_HAVE_ARCH_PFN_VALID handling, as CONFIG_HAVE_ARCH_PFN_VALID > is never used with CONFIG_MEMORY_HOTPLUG, as the latter depends on > CONFIG_SPARSEMEM_VMEMMAP. Make sure it stays that way. > > Reviewed-by: Lorenzo Stoakes (ARM) > Reviewed-by: Mike Rapoport (Microsoft) > Signed-off-by: David Hildenbrand (Arm) Acked-by: Oscar Salvador -- Oscar Salvador SUSE Labs