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=-9.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham 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 3BB40C388F9 for ; Wed, 11 Nov 2020 14:54:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D042C207DE for ; Wed, 11 Nov 2020 14:54:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="VgVHn/nj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727375AbgKKOyB (ORCPT ); Wed, 11 Nov 2020 09:54:01 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:49962 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727307AbgKKOx6 (ORCPT ); Wed, 11 Nov 2020 09:53:58 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1605106437; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=HhuJKFJ40YYV4yAtUj0xc/iGakKgHu3ked/4T0h0M60=; b=VgVHn/njk+mFekTKGPnHHSglGC46ESKYhnLbodPYdlCpAE7nqdMmFUZWCF3j0+bCgZLM2B zErUZ8EvKnjpn+Ve/gcShdMFm8qx/t09M/wNZi8Xkci8RV6g4uyWo2O/ajc46pc/XFXJGK eNEitZfM2yKUnmVQ9WdZH7kcScjd3ok= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-107-7ZYhYZrcON-D3_JaRH7ltg-1; Wed, 11 Nov 2020 09:53:53 -0500 X-MC-Unique: 7ZYhYZrcON-D3_JaRH7ltg-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2DA1A1017DC3; Wed, 11 Nov 2020 14:53:51 +0000 (UTC) Received: from t480s.redhat.com (ovpn-114-151.ams2.redhat.com [10.36.114.151]) by smtp.corp.redhat.com (Postfix) with ESMTP id 27E18380; Wed, 11 Nov 2020 14:53:44 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, David Hildenbrand , Oscar Salvador , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Rashmica Gupta , Andrew Morton , Mike Rapoport , Michal Hocko , Wei Yang , "Aneesh Kumar K.V" , Nicholas Piggin Subject: [PATCH v2 6/8] powerepc/book3s64/hash: drop WARN_ON in hash__remove_section_mapping Date: Wed, 11 Nov 2020 15:53:20 +0100 Message-Id: <20201111145322.15793-7-david@redhat.com> In-Reply-To: <20201111145322.15793-1-david@redhat.com> References: <20201111145322.15793-1-david@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The single caller (arch_remove_linear_mapping()) prints a proper warning when this function fails. No need to eventually crash the kernel - let's drop this WARN_ON. Suggested-by: Oscar Salvador Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Rashmica Gupta Cc: Andrew Morton Cc: Mike Rapoport Cc: Michal Hocko Cc: Oscar Salvador Cc: Wei Yang Cc: "Aneesh Kumar K.V" Cc: Nicholas Piggin Signed-off-by: David Hildenbrand --- arch/powerpc/mm/book3s64/hash_utils.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c index 24702c0a92e0..d2dcb7757c68 100644 --- a/arch/powerpc/mm/book3s64/hash_utils.c +++ b/arch/powerpc/mm/book3s64/hash_utils.c @@ -845,7 +845,6 @@ int hash__remove_section_mapping(unsigned long start, unsigned long end) { int rc = htab_remove_mapping(start, end, mmu_linear_psize, mmu_kernel_ssize); - WARN_ON(rc < 0); if (resize_hpt_for_hotplug(memblock_phys_mem_size()) == -ENOSPC) pr_warn("Hash collision while resizing HPT\n"); -- 2.26.2