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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CBFC7C4332F for ; Mon, 17 Jan 2022 16:09:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240841AbiAQQJ5 (ORCPT ); Mon, 17 Jan 2022 11:09:57 -0500 Received: from ams.source.kernel.org ([145.40.68.75]:50790 "EHLO ams.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240833AbiAQQJw (ORCPT ); Mon, 17 Jan 2022 11:09:52 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 1404FB810F8; Mon, 17 Jan 2022 16:09:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 14861C36AEC; Mon, 17 Jan 2022 16:09:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642435789; bh=TNg8IZ8rkhC/yp1VTmeue3vqYFJfk93+PZ5cIltGfWE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C7HOIOLwOJ19xfXpnk/nBlOW79lKeHoFTEtvCEGzu79CgMwyyqUeC8YHH26dr6ZLB Ox13/Lxw+AqNW3IR5XNj56DmCOV2EfYN+869K4t5LWOpb2HumpCbCYWQmm3K5LgyHM D2c/AkdAkX5quNjZl5SS4eyLATNyGtW+zHP8gF9VkJuknSG4QCVZI1ZX35vPD+u9VA AMPhSchEy8w0eAO0QcpGtEXdXswnpt4hLtgcQaUpA0Z52eCroIiIqYnHYJ/I5FkZDY UsGwk8/d0X3mNdaUGzDKzR+4msayD7bZWbJJoBLPTQBeaNMiXOeSxQfHN8xi34r//T h2LwnYbIV9Wqg== From: Arnaldo Carvalho de Melo To: Andi Kleen Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter , Ian Rogers , Jiri Olsa , Namhyung Kim Subject: [PATCH 1/4] perf affinity: Allow passing a NULL arg to affinity__cleanup() Date: Mon, 17 Jan 2022 13:09:28 -0300 Message-Id: <20220117160931.1191712-2-acme@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220117160931.1191712-1-acme@kernel.org> References: <20220117160931.1191712-1-acme@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org From: Arnaldo Carvalho de Melo Just like with free(), NULL is checked to avoid having all callers do it. Its convenient for when not using affinity setup/cleanup for dummy CPU maps, i.e. CPU maps for pid targets. Cc: Adrian Hunter Cc: Andi Kleen Cc: Ian Rogers Cc: Jiri Olsa Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/affinity.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/affinity.c b/tools/perf/util/affinity.c index f1e30d566db3c835..4d216c0dc4259b9e 100644 --- a/tools/perf/util/affinity.c +++ b/tools/perf/util/affinity.c @@ -62,7 +62,7 @@ void affinity__set(struct affinity *a, int cpu) clear_bit(cpu, a->sched_cpus); } -void affinity__cleanup(struct affinity *a) +static void __affinity__cleanup(struct affinity *a) { int cpu_set_size = get_cpu_set_size(); @@ -71,3 +71,9 @@ void affinity__cleanup(struct affinity *a) zfree(&a->sched_cpus); zfree(&a->orig_cpus); } + +void affinity__cleanup(struct affinity *a) +{ + if (a != NULL) + __affinity__cleanup(a); +} -- 2.34.1