From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-177.mta1.migadu.com (out-177.mta1.migadu.com [95.215.58.177]) (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 34D1A390226 for ; Tue, 7 Jul 2026 09:04:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.177 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783415069; cv=none; b=YemtPPn0p3rqIP75qyPVr9bX7ZoO3G4ClFldbobEwyUUAziCLQisbdLHazRrz0MbV720Saitd1Eepxca+IJJZTE3OhpPBbTkD2okT51gwrzglGOvu8A7QMCPXEQqd30gskAIEfxyxnklHaNCOM0l0D1rd04RF9rKaLquV+KhhNM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783415069; c=relaxed/simple; bh=lCUYWPWmgqEWxXmqJWaz1mYC9pNvQJVMaMAMHeP28hU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=oePtVF4Lb5kYkdWZXRG+BhXQ7F7m5PLZfDjrazBtzfFOzK7SIA6yE3Jj4BwmuVX9xcmpZ5kRnShlpvL3r1+3XvggKblmQW5yHLIw91oDSWVmypfQGEx+RmVqsQgWHQOQc9h/1/0gAZCdmyF3jCu1K0zpmHdg8yBr3X11yjj+Ypc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=M8isa4Ck; arc=none smtp.client-ip=95.215.58.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="M8isa4Ck" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1783415066; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=m+TQGdgxECBNC9OMJ+xs98RGgyR7DvdWTkKho6jTn4s=; b=M8isa4CkZYBjafl35EWfZC9X0rYgK7Guh6wcgOXcHz/PCHUEF5veFk6FgHejJ+BJWsJ8Oh ctNwbFncYQbVZiQGdbSU29JimGVytu6g8iMWkZ9W+E4MpfS/FgIrKbJO4Dcp2ZXLK1tZ47 RuQGpsotgRznbaIpN984ZDXz7oQ7Nu8= From: Kaitao Cheng To: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Muchun Song , Kaitao Cheng Subject: [PATCH] mm/kconfig: Drop redundant memory hotplug dependencies Date: Tue, 7 Jul 2026 17:03:31 +0800 Message-ID: <20260707090331.52971-1-kaitao.cheng@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT From: Kaitao Cheng MHP_MEMMAP_ON_MEMORY is defined inside the MEMORY_HOTPLUG block, and MEMORY_HOTPLUG already depends on SPARSEMEM_VMEMMAP. Keep the explicit MEMORY_HOTPLUG dependency for local readability, but drop the redundant SPARSEMEM_VMEMMAP dependency. ZONE_DEVICE depends on MEMORY_HOTREMOVE, which depends on MEMORY_HOTPLUG. MEMORY_HOTPLUG in turn depends on SPARSEMEM_VMEMMAP. Drop the direct MEMORY_HOTPLUG and SPARSEMEM_VMEMMAP dependencies from ZONE_DEVICE. This does not change the set of valid configurations. Signed-off-by: Kaitao Cheng --- mm/Kconfig | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/Kconfig b/mm/Kconfig index 04fe5171bb8c..ff29f770d10a 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -596,7 +596,7 @@ config MEMORY_HOTREMOVE config MHP_MEMMAP_ON_MEMORY def_bool y - depends on MEMORY_HOTPLUG && SPARSEMEM_VMEMMAP + depends on MEMORY_HOTPLUG depends on ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE endif # MEMORY_HOTPLUG @@ -1235,9 +1235,7 @@ config ZONE_DMA32 config ZONE_DEVICE bool "Device memory (pmem, HMM, etc...) hotplug support" - depends on MEMORY_HOTPLUG depends on MEMORY_HOTREMOVE - depends on SPARSEMEM_VMEMMAP select XARRAY_MULTI help -- 2.50.1 (Apple Git-155)