From patchwork Tue Apr 26 06:46:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Haowen Bai X-Patchwork-Id: 1622194 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4KnXVj1m1Hz9s75 for ; Tue, 26 Apr 2022 16:47:08 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4KnXVh688Gz3bd7 for ; Tue, 26 Apr 2022 16:47:08 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=meizu.com (client-ip=112.91.151.210; helo=mail.meizu.com; envelope-from=baihaowen@meizu.com; receiver=) Received: from mail.meizu.com (edge07.meizu.com [112.91.151.210]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4KnXVR5N3bz2xF8 for ; Tue, 26 Apr 2022 16:46:51 +1000 (AEST) Received: from IT-EXMB-1-125.meizu.com (172.16.1.125) by mz-mail11.meizu.com (172.16.1.15) with Microsoft SMTP Server (TLS) id 14.3.487.0; Tue, 26 Apr 2022 14:46:27 +0800 Received: from meizu.meizu.com (172.16.137.70) by IT-EXMB-1-125.meizu.com (172.16.1.125) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.14; Tue, 26 Apr 2022 14:46:25 +0800 From: Haowen Bai To: Subject: [PATCH V2] selftests/powerpc/pmu: Fix unsigned function returning negative constant Date: Tue, 26 Apr 2022 14:46:23 +0800 Message-ID: <1650955583-29581-1-git-send-email-baihaowen@meizu.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <0e4b0f8e-6c45-8d14-303f-2168f5004a12@linux.ibm.com> References: <0e4b0f8e-6c45-8d14-303f-2168f5004a12@linux.ibm.com> MIME-Version: 1.0 X-Originating-IP: [172.16.137.70] X-ClientProxiedBy: IT-EXMB-1-126.meizu.com (172.16.1.126) To IT-EXMB-1-125.meizu.com (172.16.1.125) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: shuah@kernel.org, baihaowen@meizu.com, linux-kernel@vger.kernel.org, paulus@samba.org, linux-kselftest@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" The function __perf_reg_mask has an unsigned return type, but returns a negative constant to indicate an error condition. So we change unsigned to int. Fixes: 5f6c3061af7c ("selftests/powerpc/pmu: Add utility functions to post process the mmap buffer") Signed-off-by: Haowen Bai --- V1->V2: add fix tag. tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c index fca054bbc094..c01a31d5f4ee 100644 --- a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c +++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c @@ -274,7 +274,7 @@ u64 *get_intr_regs(struct event *event, void *sample_buff) return intr_regs; } -static const unsigned int __perf_reg_mask(const char *register_name) +static const int __perf_reg_mask(const char *register_name) { if (!strcmp(register_name, "R0")) return 0;