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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3CCBBC43331 for ; Thu, 2 Apr 2020 04:07:17 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id F168520747 for ; Thu, 2 Apr 2020 04:07:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="bNYO0vXP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F168520747 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 923128E0049; Thu, 2 Apr 2020 00:07:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8D21B8E000D; Thu, 2 Apr 2020 00:07:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 80EF18E0049; Thu, 2 Apr 2020 00:07:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0143.hostedemail.com [216.40.44.143]) by kanga.kvack.org (Postfix) with ESMTP id 6CBD68E000D for ; Thu, 2 Apr 2020 00:07:16 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 3C2C8485C for ; Thu, 2 Apr 2020 04:07:16 +0000 (UTC) X-FDA: 76661580072.21.steam46_3f713b22d2353 X-HE-Tag: steam46_3f713b22d2353 X-Filterd-Recvd-Size: 2867 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf04.hostedemail.com (Postfix) with ESMTP for ; Thu, 2 Apr 2020 04:07:15 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D299A206E9; Thu, 2 Apr 2020 04:07:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585800435; bh=4X5ANdUPaPj3kfsfUYrZkGmaKBb2RAM9cD5YqLwmKJc=; h=Date:From:To:Subject:In-Reply-To:From; b=bNYO0vXPo/5r3U3wqAzU+b7wg4qulRvJ3zBhi+IHQPzwQfbz/4natAoCELfUQ//Sx cCyz3a+Yy6hxpFcSZC+tzKtBTjVSpA2YhTZkbzsdd4DYJ4jqGIFmVG39wqAjusMK9G pLHQCm2McQGZngQShWrzxnlD9kvICKZ5AWyHwWGY= Date: Wed, 01 Apr 2020 21:07:13 -0700 From: Andrew Morton To: akpm@linux-foundation.org, chris@chrisdown.name, hannes@cmpxchg.org, linux-mm@kvack.org, mhocko@kernel.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org, vdavydov.dev@gmail.com, vincenzo.frascino@arm.com Subject: [patch 073/155] mm/memcontrol.c: make mem_cgroup_id_get_many() __maybe_unused Message-ID: <20200402040713.Uh_yvY9Nb%akpm@linux-foundation.org> In-Reply-To: <20200401210155.09e3b9742e1c6e732f5a7250@linux-foundation.org> User-Agent: s-nail v14.8.16 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: From: Vincenzo Frascino Subject: mm/memcontrol.c: make mem_cgroup_id_get_many() __maybe_unused mem_cgroup_id_get_many() is currently used only when MMU or MEMCG_SWAP configuration options are enabled. Having them disabled triggers the following warning at compile time: linux/mm/memcontrol.c:4797:13: warning: `mem_cgroup_id_get_many' defined but not used [-Wunused-function] static void mem_cgroup_id_get_many(struct mem_cgroup *memcg, unsigned int n) Make mem_cgroup_id_get_many() __maybe_unused to address the issue. Link: http://lkml.kernel.org/r/20200305164354.48147-1-vincenzo.frascino@arm.com Signed-off-by: Vincenzo Frascino Acked-by: Johannes Weiner Acked-by: Chris Down Cc: Michal Hocko Cc: Vladimir Davydov Signed-off-by: Andrew Morton --- mm/memcontrol.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/mm/memcontrol.c~mm-make-mem_cgroup_id_get_many-__maybe_unused +++ a/mm/memcontrol.c @@ -4863,7 +4863,8 @@ static void mem_cgroup_id_remove(struct } } -static void mem_cgroup_id_get_many(struct mem_cgroup *memcg, unsigned int n) +static void __maybe_unused mem_cgroup_id_get_many(struct mem_cgroup *memcg, + unsigned int n) { refcount_add(n, &memcg->id.ref); } _