From patchwork Thu May 12 14:48:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Qiong X-Patchwork-Id: 12847804 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id BFF3CC433EF for ; Thu, 12 May 2022 14:49:29 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 249DC6B0074; Thu, 12 May 2022 10:49:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1F9136B0075; Thu, 12 May 2022 10:49:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0C2E56B0078; Thu, 12 May 2022 10:49:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id F24106B0074 for ; Thu, 12 May 2022 10:49:28 -0400 (EDT) Received: from smtpin18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay12.hostedemail.com (Postfix) with ESMTP id CE30112067F for ; Thu, 12 May 2022 14:49:28 +0000 (UTC) X-FDA: 79457374416.18.D747DD5 Received: from mail.nfschina.com (mail.nfschina.com [124.16.136.209]) by imf09.hostedemail.com (Postfix) with ESMTP id 723D914009B for ; Thu, 12 May 2022 14:49:18 +0000 (UTC) Received: from localhost (unknown [127.0.0.1]) by mail.nfschina.com (Postfix) with ESMTP id 413131E80D70; Thu, 12 May 2022 22:43:46 +0800 (CST) X-Virus-Scanned: amavisd-new at test.com Received: from mail.nfschina.com ([127.0.0.1]) by localhost (mail.nfschina.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kj5QDLbieTlH; Thu, 12 May 2022 22:43:43 +0800 (CST) Received: from localhost.localdomain (unknown [180.167.10.98]) (Authenticated sender: liqiong@nfschina.com) by mail.nfschina.com (Postfix) with ESMTPA id 3C0451E80D6B; Thu, 12 May 2022 22:43:43 +0800 (CST) From: liqiong To: Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, liqiong Subject: [PATCH] mm: change "char *bdi_unknown_name" to "char bdi_unknown_name[]" Date: Thu, 12 May 2022 22:48:29 +0800 Message-Id: <20220512144829.5148-1-liqiong@nfschina.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20220512082637.24649-1-liqiong@nfschina.com> References: <20220512082637.24649-1-liqiong@nfschina.com> X-Rspamd-Queue-Id: 723D914009B X-Stat-Signature: 5b4ai1pojjqa657bspfck4sg7zozmwj4 Authentication-Results: imf09.hostedemail.com; dkim=none; dmarc=none; spf=none (imf09.hostedemail.com: domain of liqiong@nfschina.com has no SPF policy when checking 124.16.136.209) smtp.mailfrom=liqiong@nfschina.com X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1652366958-50530 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: "char bdi_unknown_nam[]" string form declares a single variable. It is better than "char *bdi_unknown_name" which creates two variables. Signed-off-by: liqiong --- mm/backing-dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 7176af65b103..4982ccc63536 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -20,7 +20,7 @@ struct backing_dev_info noop_backing_dev_info; EXPORT_SYMBOL_GPL(noop_backing_dev_info); static struct class *bdi_class; -static const char *bdi_unknown_name = "(unknown)"; +static const char bdi_unknown_name[] = "(unknown)"; /* * bdi_lock protects bdi_tree and updates to bdi_list. bdi_list has RCU