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 14B0E1FB7 for ; Fri, 25 Mar 2022 01:12:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1581C340EE; Fri, 25 Mar 2022 01:12:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1648170734; bh=ziV40QzvrV9ly03fJJHDWWsvddu6N2Q7MaUkm1c7iqE=; h=Date:To:From:In-Reply-To:Subject:From; b=kFbMbVEFQ2rTr1uvhYH4rvIVvX5NMsrybcbBafRSE/JbJrWUomed2tNRmXy++vK01 YK5QPWK1YCbPU1v9dpndNg5JInoeTl+laNpHpIr7S/98zTg/FbMOrWr1pRrFiOLXn1 FBbyKBVFdwq0Es2Uxo5IH1aJRUVBEIEm900W3YGA= Date: Thu, 24 Mar 2022 18:12:14 -0700 To: ryabinin.a.a@gmail.com,glider@google.com,elver@google.com,dvyukov@google.com,andreyknvl@google.com,akpm@linux-foundation.org,patches@lists.linux.dev,linux-mm@kvack.org,mm-commits@vger.kernel.org,torvalds@linux-foundation.org,akpm@linux-foundation.org From: Andrew Morton In-Reply-To: <20220324180758.96b1ac7e17675d6bc474485e@linux-foundation.org> Subject: [patch 073/114] kasan: drop addr check from describe_object_addr Message-Id: <20220325011214.D1581C340EE@smtp.kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: From: Andrey Konovalov Subject: kasan: drop addr check from describe_object_addr Patch series "kasan: report clean-ups and improvements". A number of clean-up patches for KASAN reporting code. Most are non-functional and only improve readability. This patch (of 22): describe_object_addr() used to be called with NULL addr in the early days of KASAN. This no longer happens, so drop the check. Link: https://lkml.kernel.org/r/cover.1646237226.git.andreyknvl@google.com Link: https://lkml.kernel.org/r/761f8e5a6ee040d665934d916a90afe9f322f745.1646237226.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov Reviewed-by: Alexander Potapenko Cc: Marco Elver Cc: Dmitry Vyukov Cc: Andrey Ryabinin Signed-off-by: Andrew Morton --- mm/kasan/report.c | 3 --- 1 file changed, 3 deletions(-) --- a/mm/kasan/report.c~kasan-drop-addr-check-from-describe_object_addr +++ a/mm/kasan/report.c @@ -162,9 +162,6 @@ static void describe_object_addr(struct " which belongs to the cache %s of size %d\n", object, cache->name, cache->object_size); - if (!addr) - return; - if (access_addr < object_addr) { rel_type = "to the left"; rel_bytes = object_addr - access_addr; _