From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 55321EC01A0 for ; Mon, 23 Mar 2026 07:49:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=PRKSTfQ2O+eVNBGid9yhgznzOkdGuXgn3KcDsHXlPeg=; b=k7tbQ0vYnGS6AWzTsBuxU4WQOB Yi8wVtS0ctV4WTbf5bIzw0CX2DFwocihiCgRV4CaMf5s65QRA8cLPRRJZruNooFkmXeKg4u0pJf5K PS3vm6kWKJ5Lq8q6bQIAYgSFOXC7INIjjJX8WAllfyMVD1NAf/lG/q/nSKW/5cG0jaDdaTPbAh9Dg NYWn3hdMin1RohbPOQQ646R2ZrylzPlZ39j1Mjjvx5UI70e9vgNgjngi1TLOuqo5siwbXLbPa2uWN lpDYIfUboJUq9ZkHak8GdnwVlKuNMurpuDoZTyjXxy8jUIrEA+S8ZO1QpdnOvvN34OHNnIZOq8RTl 2Bb87UOg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w4a24-0000000GDkH-0Vts; Mon, 23 Mar 2026 07:49:04 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w4a22-0000000GDjl-1SpI for linux-arm-kernel@lists.infradead.org; Mon, 23 Mar 2026 07:49:03 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id AE2A04358A; Mon, 23 Mar 2026 07:49:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E6B1FC2BC9E; Mon, 23 Mar 2026 07:48:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774252141; bh=ZPayAoUZgLwz6EhVKnVbCR0MqW3d3UF4hy1nzr/kEys=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=soMwPHB478isjyOEuq0IFRN9Cief5Jqwxg1OL7jUkDAL9y4hBeM9dbR/1MWaRqGWi ib0jpyTzOuLzovqiLkfFzH/sitT7zv4W8SFvjQAfIZyXowACHhmqxuqnkiN4Ye2w/b fqdb/4qzrOD886HOPMUSVszQTzLVwA06GpzpYZb9RUwXxMKzldKhDOEpdPGEiqzvEz d8ZnoMumXfNyr/H7/zGCKqVZFhNYMDERdxkrZ9jFtVB2x96iGjkhmG/En+iUsCJUVO API6o3jBTJGcQaw3dzn8rTLMq1L6nSmRBE/0It/iNumPWF5phnJ73bZcJMJHMFZdCH C3sxaPr5Q/wkA== From: Mike Rapoport To: Andrew Morton Cc: Alexander Potapenko , Alexander Viro , Andreas Larsson , Ard Biesheuvel , Borislav Petkov , Brendan Jackman , "Christophe Leroy (CS GROUP)" , Catalin Marinas , Christian Brauner , "David S. Miller" , Dave Hansen , David Hildenbrand , Dmitry Vyukov , Ilias Apalodimas , Ingo Molnar , Jan Kara , Johannes Weiner , "Liam R. Howlett" , Lorenzo Stoakes , Madhavan Srinivasan , Marco Elver , Marek Szyprowski , Masami Hiramatsu , Michael Ellerman , Michal Hocko , Mike Rapoport , Nicholas Piggin , "H. Peter Anvin" , Rob Herring , Robin Murphy , Saravana Kannan , Suren Baghdasaryan , Thomas Gleixner , Vlastimil Babka , Will Deacon , Zi Yan , devicetree@vger.kernel.org, iommu@lists.linux.dev, kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, x86@kernel.org Subject: [PATCH v2 1/9] memblock: reserve_mem: fix end caclulation in reserve_mem_release_by_name() Date: Mon, 23 Mar 2026 09:48:28 +0200 Message-ID: <20260323074836.3653702-2-rppt@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260323074836.3653702-1-rppt@kernel.org> References: <20260323074836.3653702-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260323_004902_417254_A121BA09 X-CRM114-Status: GOOD ( 13.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: "Mike Rapoport (Microsoft)" free_reserved_area() expects end parameter to point to the first address after the area, but reserve_mem_release_by_name() passes it the last address inside the area. Remove subtraction of one in calculation of the area end. Fixes: 74e2498ccf7b ("mm/memblock: Add reserved memory release function") Signed-off-by: Mike Rapoport (Microsoft) --- mm/memblock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memblock.c b/mm/memblock.c index b3ddfdec7a80..d4a02f1750e9 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -2434,7 +2434,7 @@ int reserve_mem_release_by_name(const char *name) return 0; start = phys_to_virt(map->start); - end = start + map->size - 1; + end = start + map->size; snprintf(buf, sizeof(buf), "reserve_mem:%s", name); free_reserved_area(start, end, 0, buf); map->size = 0; -- 2.53.0