From patchwork Tue Apr 7 03:08:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11477319 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B76FF92A for ; Tue, 7 Apr 2020 03:08:04 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 84D32214DB for ; Tue, 7 Apr 2020 03:08:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="OkTOGKvC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 84D32214DB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 106088E0050; Mon, 6 Apr 2020 23:08:03 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 091548E0001; Mon, 6 Apr 2020 23:08:03 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E72FB8E0050; Mon, 6 Apr 2020 23:08:02 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0071.hostedemail.com [216.40.44.71]) by kanga.kvack.org (Postfix) with ESMTP id C3D438E0001 for ; Mon, 6 Apr 2020 23:08:02 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 8B4ED99BE for ; Tue, 7 Apr 2020 03:08:02 +0000 (UTC) X-FDA: 76679574804.13.cart61_80636bde66c29 X-Spam-Summary: 2,0,0,f618ec7b59fb57d0,d41d8cd98f00b204,akpm@linux-foundation.org,,RULES_HIT:41:355:379:800:960:967:973:988:989:1260:1263:1345:1359:1381:1431:1437:1534:1541:1711:1730:1747:1777:1792:2393:2525:2559:2563:2682:2685:2859:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3352:3865:3866:3867:3870:3871:3872:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4037:4250:4321:5007:6117:6261:6653:7576:8599:8603:9025:9545:10004:10913:11026:11658:11914:12043:12048:12294:12296:12297:12517:12519:12555:12679:12783:12986:13069:13311:13357:13846:14181:14384:14721:14849:21080:21451:21627:21660:21939:30054,0,RBL:198.145.29.99:@linux-foundation.org:.lbl8.mailshell.net-64.100.201.201 62.2.0.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:1,LUA_SUMMARY:none X-HE-Tag: cart61_80636bde66c29 X-Filterd-Recvd-Size: 2528 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf07.hostedemail.com (Postfix) with ESMTP for ; Tue, 7 Apr 2020 03:08:02 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 54C36214DB; Tue, 7 Apr 2020 03:08:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586228881; bh=J8fk0kSnnIukxlu8vhMfTg3CJzOMvyd6AjHZVcvt0Gw=; h=Date:From:To:Subject:In-Reply-To:From; b=OkTOGKvCkPeEcquoydIDHHnDisrgWF/9WmsUEKvluygGh1i3BZUBDPZzy/jq7khIb JtI8YuAI9u88DewjWSOXiJJ3To+CG6YLtENSL+nuWacj2LS0D2IB7A+4JT102/y6vc U0wQTg6B/QJNUqk8fRG6j6MF6X8bOAWNt7ivHxGE= Date: Mon, 06 Apr 2020 20:08:00 -0700 From: Andrew Morton To: akpm@linux-foundation.org, linux-mm@kvack.org, mm-commits@vger.kernel.org, palmerdabbelt@google.com, torvalds@linux-foundation.org Subject: [patch 075/166] mm: prevent a warning when casting void* -> enum Message-ID: <20200407030800.mhJqunPQQ%akpm@linux-foundation.org> In-Reply-To: <20200406200254.a69ebd9e08c4074e41ddebaf@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Palmer Dabbelt Subject: mm: prevent a warning when casting void* -> enum I recently build the RISC-V port with LLVM trunk, which has introduced a new warning when casting from a pointer to an enum of a smaller size. This patch simply casts to a long in the middle to stop the warning. I'd be surprised this is the only one in the kernel, but it's the only one I saw. Link: http://lkml.kernel.org/r/20200227211741.83165-1-palmer@dabbelt.com Signed-off-by: Palmer Dabbelt Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton --- mm/rmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/rmap.c~mm-elide-a-warning-when-casting-void-enum +++ a/mm/rmap.c @@ -1372,7 +1372,7 @@ static bool try_to_unmap_one(struct page struct page *subpage; bool ret = true; struct mmu_notifier_range range; - enum ttu_flags flags = (enum ttu_flags)arg; + enum ttu_flags flags = (enum ttu_flags)(long)arg; /* munlock has nothing to gain from examining un-locked vmas */ if ((flags & TTU_MUNLOCK) && !(vma->vm_flags & VM_LOCKED))