From mboxrd@z Thu Jan 1 00:00:00 1970 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 DC450363090; Mon, 23 Mar 2026 07:49:01 +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=1774252141; cv=none; b=UfFGeD+UpJnPiEO1+4n7bPebcCrt9ygQ6263IdRE2dZWaEfOsOpuxijMV+ODQAPlBrTxTRyc5PMHnhrHBu+e7SCSszL7FIK83iaufvpMJU7qb8TUiDUzgfzzrAgTjCFZU9EBX0EMQmTXqHZJ9RWQYgCcev4Dqaj2TMqok0ZA+lc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774252141; c=relaxed/simple; bh=ZPayAoUZgLwz6EhVKnVbCR0MqW3d3UF4hy1nzr/kEys=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=L9twtqjIIZahydnIRGdVoPTVOd8jRp/zgvWDRFJm43PuiYjNaLjMwdoXyQU1rtZEHhKgyQ7U6zVxWNqFtuyPDjqg0DMYvdWlnQwszYRbpa/psvb8BEaBSbTQJrlu22SSNifP8JgbstsTrK3vWmDJIkupNV4KWvYxjfayCXQdcRI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=soMwPHB4; 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="soMwPHB4" 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> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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