From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-f72.google.com (mail-oi0-f72.google.com [209.85.218.72]) by kanga.kvack.org (Postfix) with ESMTP id 628326B6D4F for ; Tue, 4 Sep 2018 07:45:21 -0400 (EDT) Received: by mail-oi0-f72.google.com with SMTP id u74-v6so3799064oie.16 for ; Tue, 04 Sep 2018 04:45:21 -0700 (PDT) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com. [217.140.101.70]) by mx.google.com with ESMTP id r135-v6si14092251oie.100.2018.09.04.04.45.20 for ; Tue, 04 Sep 2018 04:45:20 -0700 (PDT) From: Will Deacon Subject: [PATCH v2 1/5] asm-generic/tlb: Guard with #ifdef CONFIG_MMU Date: Tue, 4 Sep 2018 12:45:29 +0100 Message-Id: <1536061533-16188-2-git-send-email-will.deacon@arm.com> In-Reply-To: <1536061533-16188-1-git-send-email-will.deacon@arm.com> References: <1536061533-16188-1-git-send-email-will.deacon@arm.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-kernel@vger.kernel.org Cc: peterz@infradead.org, npiggin@gmail.com, linux-mm@kvack.org, kirill.shutemov@linux.intel.com, akpm@linux-foundation.org, mhocko@suse.com, aneesh.kumar@linux.vnet.ibm.com The inner workings of the mmu_gather-based TLB invalidation mechanism are not relevant to nommu configurations, so guard them with an #ifdef. This allows us to implement future functions using static inlines without breaking the build. Acked-by: Nicholas Piggin Acked-by: Peter Zijlstra (Intel) Signed-off-by: Will Deacon --- include/asm-generic/tlb.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index b3353e21f3b3..a25e236f7a7f 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -20,6 +20,8 @@ #include #include +#ifdef CONFIG_MMU + #ifdef CONFIG_HAVE_RCU_TABLE_FREE /* * Semi RCU freeing of the page directories. @@ -310,6 +312,8 @@ static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, #endif #endif +#endif /* CONFIG_MMU */ + #define tlb_migrate_finish(mm) do {} while (0) #endif /* _ASM_GENERIC__TLB_H */ -- 2.1.4