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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 38E57C4452D for ; Wed, 22 Jul 2026 02:36:03 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4h4dfT1PlTz2xnK; Wed, 22 Jul 2026 12:36:01 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1784687761; cv=none; b=B5R7AXA+LBrN1YU+m71UMSkrFW4pub2EBLoQl3hOpvzn+z3DXVaM9cxNIrH8gunRrXYuuXskKz7gH8HsBxhJelQvnTWQ+ynZoNqgWbjaaGjM7SkNXJsY08sHC88UYq8R+xe06hCSclmn2Chcf8+R10XdgLN+O8z9hH5PCx5iwBR53QonrBCf28KPROsTNZxEhohv5ZjRXj5jitM7BUMqQOCujeSSOFbPz2//1pqwbsuPqk4+ezzOfjbDFcZ49Ux+n4Fjyilf9YD/QTvNNO3Bjs+RUDh9JD+3TU/3YTprsd8v+N/eRODDoFpOP9SosKUBn1kEFKTypT60nL1XkpasHg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1784687761; c=relaxed/relaxed; bh=kpNumPAk7arU58YTtiiCmiKmSm5NdgBXQVtGvst1Zes=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=NGxxKdRP57B8bAFlR+U6utU4hwkS2jiTLA8wOX01rN1WAnzu8oKnAvlNAmYlNbvlkwxOsN0vaOdVA+jL60Wxro2Z1ororEUY5Rz4NnVELVtJMx1F1hA/E2/y5/f0poq1Q2BZbkJouatRUOi++qyAlJ0wgM2rOxFchczQoqNSdsNZ4pJFUzgRsnlnwobdsMRnQeNhaNa55X34SDGKAK8YrSJ5Tz0sWdXau1XRAHUSdCauJCemmexd2qtr1d3lZs6ZjrtpRoVxiWBmaxbOfvUOrkkqMF+X0xykzYaszX4LihbF276bMAbk3Rte7z4GzOje/Rlfh/O6qePdFKKycA86bw== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass (client-ip=124.126.103.232; helo=mailgw.kylinos.cn; envelope-from=yanlonglong@kylinos.cn; receiver=lists.ozlabs.org) smtp.mailfrom=kylinos.cn Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kylinos.cn (client-ip=124.126.103.232; helo=mailgw.kylinos.cn; envelope-from=yanlonglong@kylinos.cn; receiver=lists.ozlabs.org) Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4h4dfR5LVzz2xBb for ; Wed, 22 Jul 2026 12:35:58 +1000 (AEST) X-UUID: e4b83c7e857511f1aa26b74ffac11d73-20260722 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.12,REQID:f14f1e8c-c6f0-4d5e-a659-c56a11c2bc67,IP:0,U RL:0,TC:0,Content:0,EDM:25,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:25 X-CID-META: VersionHash:e7bac3a,CLOUDID:034ad1efaf0e8d13b9263c7cd7dd0407,BulkI D:nil,BulkQuantity:0,Recheck:0,SF:102|136|850|865|898,TC:nil,Content:0|15| 50,EDM:5,IP:nil,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0, OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: e4b83c7e857511f1aa26b74ffac11d73-20260722 X-User: yanlonglong@kylinos.cn Received: from localhost.localdomain [(10.44.16.150)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 2083707242; Wed, 22 Jul 2026 10:34:42 +0800 From: longlong yan To: maddy@linux.ibm.com, mpe@ellerman.id.au Cc: npiggin@gmail.com, chleroy@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kselftest@vger.kernel.org, shuah@kernel.org, linux-kernel@vger.kernel.org, longlong yan Subject: [PATCH] selftests/powerpc: use MAP_FAILED instead of (void *)-1 in tm-signal-context-force-tm Date: Wed, 22 Jul 2026 10:34:28 +0800 Message-ID: <20260722023428.932-1-yanlonglong@kylinos.cn> X-Mailer: git-send-email 2.47.1.windows.2 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit mmap() is documented to return MAP_FAILED on error, but tm-signal-context-force-tm.c compares the return value against (void *)-1. Replace these with the standard MAP_FAILED macro for better readability and type safety. Signed-off-by: longlong yan --- .../testing/selftests/powerpc/tm/tm-signal-context-force-tm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/tm/tm-signal-context-force-tm.c b/tools/testing/selftests/powerpc/tm/tm-signal-context-force-tm.c index 0a4bc479ae39..5dc0f12f467d 100644 --- a/tools/testing/selftests/powerpc/tm/tm-signal-context-force-tm.c +++ b/tools/testing/selftests/powerpc/tm/tm-signal-context-force-tm.c @@ -60,7 +60,7 @@ void usr_signal_handler(int signo, siginfo_t *si, void *uc) ucp->uc_link = mmap(NULL, sizeof(ucontext_t), PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); - if (ucp->uc_link == (void *)-1) { + if (ucp->uc_link == MAP_FAILED) { perror("Mmap failed"); exit(-1); } @@ -129,7 +129,7 @@ void tm_trap_test(void) ss.ss_size = SIGSTKSZ; ss.ss_flags = 0; - if (ss.ss_sp == (void *)-1) { + if (ss.ss_sp == MAP_FAILED) { perror("mmap error\n"); exit(-1); } -- 2.43.0