From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailout1.samsung.com (mailout1.samsung.com [203.254.224.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A51E63FE64E for ; Tue, 28 Apr 2026 10:56:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.254.224.24 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777373799; cv=none; b=r4DXLNcPFnFu7lc8q2PXeeg/tqoqd4baySbwjNxHlKkKdbtVomRwQUbt26d7Dz1ZxBF+DnZPm1kofMXaUdfK2vCA60SOdHsAFV2kM6ey5iEC+wxaFLAWPA3goLxT+D56InL5n+Z3N29nIJ5aanVIMTDblr+G/lY6g+WqC5Jdjow= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777373799; c=relaxed/simple; bh=NMv+VxeuwDNn6g3TW4koZ+em4kr4EvwstGVdl+4Dfw0=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type: References; b=josnZPbVpWzwnY67EcE+EzrASUrdaA8ZC1LKHBHqNFM6n96PTfG2hIhTXYT7RF3AC6BJzBPWNlu1RQ5HcrZ0gKlV0pNvQDqp1dbMZY53GuPenS8dB0+MTM5ijE0J2U6lZy7kwGssuPFBjd016z8nA0WAPwKYNY92x3xE/IkZDfM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com; spf=pass smtp.mailfrom=samsung.com; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b=fMCLfgkL; arc=none smtp.client-ip=203.254.224.24 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=samsung.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="fMCLfgkL" Received: from epcas5p1.samsung.com (unknown [182.195.41.39]) by mailout1.samsung.com (KnoxPortal) with ESMTP id 20260428105634epoutp01fcd0e856e53699f24b06c4049c925f33~qgAyEGzWI2479124791epoutp01j for ; Tue, 28 Apr 2026 10:56:34 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.samsung.com 20260428105634epoutp01fcd0e856e53699f24b06c4049c925f33~qgAyEGzWI2479124791epoutp01j DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1777373794; bh=Mj2IP8DLHGXXP4c161i0NJGqeOoEZnUlzGwEj1TVGak=; h=From:To:Cc:Subject:Date:References:From; b=fMCLfgkLKrZA+YBHoAPcUQ4lo6mV9I7Rt2Ew8LAbQ4F8MpPaKBd+ifYx4cp5HNOjn UbfCBdENKPo/jfNKA+MQT91hjXCuF0cR/9xv91u5MuJOli7yiA/9mynH9zvyjjn3OF bWqgFkeGwPiPoUB741YhmHnKsQ0AClnfRYTmZYyU= Received: from epsnrtp01.localdomain (unknown [182.195.42.153]) by epcas5p4.samsung.com (KnoxPortal) with ESMTPS id 20260428105633epcas5p4cd4949bb3499e767536ec2d1d1c8b514~qgAxiPoq20050600506epcas5p43; Tue, 28 Apr 2026 10:56:33 +0000 (GMT) Received: from epcas5p3.samsung.com (unknown [182.195.41.41]) by epsnrtp01.localdomain (Postfix) with ESMTP id 4g4cnF4FWVz6B9m7; Tue, 28 Apr 2026 10:56:33 +0000 (GMT) Received: from epsmtip1.samsung.com (unknown [182.195.34.30]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPA id 20260428105633epcas5p37a93b7abb3d2ce0d1c2fbf6a72634ea7~qgAxE1A200405904059epcas5p39; Tue, 28 Apr 2026 10:56:33 +0000 (GMT) Received: from localhost.localdomain (unknown [107.97.243.203]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20260428105631epsmtip1aa0b712b712c85eb35aa762ed2c9aa0f~qgAvt3f1Q2329723297epsmtip1E; Tue, 28 Apr 2026 10:56:31 +0000 (GMT) From: Maninder Singh To: hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, Maninder Singh Subject: [PATCH 1/1] s390: remove extra check of task_stack_page() Date: Tue, 28 Apr 2026 16:26:07 +0530 Message-Id: <20260428105607.1283661-1-maninder1.s@samsung.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CMS-MailID: 20260428105633epcas5p37a93b7abb3d2ce0d1c2fbf6a72634ea7 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P X-CMS-RootMailID: 20260428105633epcas5p37a93b7abb3d2ce0d1c2fbf6a72634ea7 References: There is no need to call task_stack_page(), because try_get_task_stack() already takes care of that. Signed-off-by: Maninder Singh --- arch/s390/kernel/process.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 0df95dcb2101..dabd569dbba8 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -203,9 +203,6 @@ unsigned long __get_wchan(struct task_struct *p) struct unwind_state state; unsigned long ip = 0; - if (!task_stack_page(p)) - return 0; - if (!try_get_task_stack(p)) return 0; -- 2.34.1