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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 AEE31C07542 for ; Mon, 27 May 2019 07:04:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 80A112075B for ; Mon, 27 May 2019 07:04:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726209AbfE0HEF (ORCPT ); Mon, 27 May 2019 03:04:05 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:56960 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725908AbfE0HEF (ORCPT ); Mon, 27 May 2019 03:04:05 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EF7A7374; Mon, 27 May 2019 00:04:04 -0700 (PDT) Received: from p8cg001049571a15.blr.arm.com (p8cg001049571a15.blr.arm.com [10.162.40.17]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 840713F59C; Mon, 27 May 2019 00:04:02 -0700 (PDT) From: Anshuman Khandual To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual , Catalin Marinas , Will Deacon , Mark Rutland , Ard Biesheuvel Subject: [PATCH V2] arm64/mm: Change BUG_ON() to VM_BUG_ON() in [pmd|pud]_set_huge() Date: Mon, 27 May 2019 12:33:29 +0530 Message-Id: <1558940609-30872-1-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There are no callers for the functions which will pass unaligned physical addresses. Hence just change these BUG_ON() checks into VM_BUG_ON() which gets compiled out unless CONFIG_VM_DEBUG is enabled. Signed-off-by: Anshuman Khandual Cc: Catalin Marinas Cc: Will Deacon Cc: Mark Rutland Cc: Ard Biesheuvel --- Changes in V2: - Use VM_BUG_ON() instead of BUG_ON() as per Ard Biesheuvel arch/arm64/mm/mmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index a1bfc44..2637ff3 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -980,7 +980,7 @@ int pud_set_huge(pud_t *pudp, phys_addr_t phys, pgprot_t prot) pud_val(new_pud))) return 0; - BUG_ON(phys & ~PUD_MASK); + VM_BUG_ON(phys & ~PUD_MASK); set_pud(pudp, new_pud); return 1; } @@ -996,7 +996,7 @@ int pmd_set_huge(pmd_t *pmdp, phys_addr_t phys, pgprot_t prot) pmd_val(new_pmd))) return 0; - BUG_ON(phys & ~PMD_MASK); + VM_BUG_ON(phys & ~PMD_MASK); set_pmd(pmdp, new_pmd); return 1; } -- 2.7.4