From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-f200.google.com (mail-pg1-f200.google.com [209.85.215.200]) by kanga.kvack.org (Postfix) with ESMTP id 722A06B2FEC for ; Fri, 24 Aug 2018 10:06:55 -0400 (EDT) Received: by mail-pg1-f200.google.com with SMTP id h3-v6so5624773pgc.8 for ; Fri, 24 Aug 2018 07:06:55 -0700 (PDT) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id s24-v6sor2373100pfm.12.2018.08.24.07.06.54 for (Google Transport Security); Fri, 24 Aug 2018 07:06:54 -0700 (PDT) Subject: Re: [RFC PATCH 2/2] mm: mmu_notifier fix for tlb_end_vma (build failures) References: <20180823084709.19717-1-npiggin@gmail.com> <20180823084709.19717-3-npiggin@gmail.com> <20180824130722.GA31409@roeck-us.net> <20180824131026.GB11868@brain-police> <20180824132419.GA9983@roeck-us.net> <20180824133427.GC11868@brain-police> <20180824135048.GF11868@brain-police> From: Guenter Roeck Message-ID: <7d0111f4-c369-43a8-72c6-1a7390cdebdd@roeck-us.net> Date: Fri, 24 Aug 2018 07:06:51 -0700 MIME-Version: 1.0 In-Reply-To: <20180824135048.GF11868@brain-police> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Will Deacon Cc: Nicholas Piggin , Peter Zijlstra , torvalds@linux-foundation.org, luto@kernel.org, x86@kernel.org, bp@alien8.de, riel@surriel.com, jannh@google.com, ascannell@google.com, dave.hansen@intel.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, David Miller , Martin Schwidefsky , Michael Ellerman , linux-arch@vger.kernel.org, Palmer Dabbelt , linux-riscv@lists.infradead.org On 08/24/2018 06:50 AM, Will Deacon wrote: >> -#include >> +struct mmu_gather; >> >> static inline void tlb_flush(struct mmu_gather *tlb) >> { >> flush_tlb_mm(tlb->mm); > > Bah, didn't spot the dereference so this won't work either. You basically > just need to copy what I did for arm64 in d475fac95779. > Yes, this seems to work. It doesn't really need "struct mmu_gather;" - I assume that is included from elsewhere - but I added it to be safe. Can you send a full patch, or do you want me to do it ? Thanks, Guenter --- diff --git a/arch/riscv/include/asm/tlb.h b/arch/riscv/include/asm/tlb.h index c229509288ea..439dc7072e05 100644 --- a/arch/riscv/include/asm/tlb.h +++ b/arch/riscv/include/asm/tlb.h @@ -14,6 +14,10 @@ #ifndef _ASM_RISCV_TLB_H #define _ASM_RISCV_TLB_H +struct mmu_gather; + +static void tlb_flush(struct mmu_gather *tlb); + #include static inline void tlb_flush(struct mmu_gather *tlb)