From patchwork Thu Aug 25 10:32:37 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Micka=C3=ABl_Sala=C3=BCn?= X-Patchwork-Id: 9299215 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B94BE60459 for ; Thu, 25 Aug 2016 10:49:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AB123291F7 for ; Thu, 25 Aug 2016 10:49:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9E2DB29252; Thu, 25 Aug 2016 10:49:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 280B8291F7 for ; Thu, 25 Aug 2016 10:49:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933818AbcHYKpk (ORCPT ); Thu, 25 Aug 2016 06:45:40 -0400 Received: from smtp-sh2.infomaniak.ch ([128.65.195.6]:44378 "EHLO smtp-sh2.infomaniak.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933678AbcHYKpi (ORCPT ); Thu, 25 Aug 2016 06:45:38 -0400 X-Greylist: delayed 570 seconds by postgrey-1.27 at vger.kernel.org; Thu, 25 Aug 2016 06:45:36 EDT Received: from smtp6.infomaniak.ch (smtp6.infomaniak.ch [83.166.132.19]) by smtp-sh.infomaniak.ch (8.14.5/8.14.5) with ESMTP id u7PAYV5w026342 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 25 Aug 2016 12:34:31 +0200 Received: from localhost (ns3096276.ip-94-23-54.eu [94.23.54.103]) (authenticated bits=0) by smtp6.infomaniak.ch (8.14.5/8.14.5) with ESMTP id u7PAYVbv002092; Thu, 25 Aug 2016 12:34:31 +0200 From: =?UTF-8?q?Micka=C3=ABl=20Sala=C3=BCn?= To: linux-kernel@vger.kernel.org Cc: =?UTF-8?q?Micka=C3=ABl=20Sala=C3=BCn?= , Alexei Starovoitov , Andy Lutomirski , Arnd Bergmann , Casey Schaufler , Daniel Borkmann , Daniel Mack , David Drysdale , "David S . Miller" , Elena Reshetova , James Morris , Kees Cook , Paul Moore , Sargun Dhillon , "Serge E . Hallyn" , Will Drewry , kernel-hardening@lists.openwall.com, linux-api@vger.kernel.org, linux-security-module@vger.kernel.org, netdev@vger.kernel.org Subject: [RFC v2 02/10] bpf: Move u64_to_ptr() to BPF headers and inline it Date: Thu, 25 Aug 2016 12:32:37 +0200 Message-Id: <1472121165-29071-3-git-send-email-mic@digikod.net> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1472121165-29071-1-git-send-email-mic@digikod.net> References: <1472121165-29071-1-git-send-email-mic@digikod.net> MIME-Version: 1.0 X-Antivirus: Dr.Web (R) for Unix mail servers drweb plugin ver.6.0.2.8 X-Antivirus-Code: 0x100000 Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: X-Virus-Scanned: ClamAV using ClamSMTP This helper will be useful for arraymap (next commit). Signed-off-by: Mickaël Salaün Cc: Alexei Starovoitov Cc: David S. Miller Cc: Daniel Borkmann --- include/linux/bpf.h | 6 ++++++ kernel/bpf/syscall.c | 6 ------ 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 0de4de6dd43e..ca3742729ae7 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -251,6 +251,12 @@ static inline void bpf_long_memcpy(void *dst, const void *src, u32 size) /* verify correctness of eBPF program */ int bpf_check(struct bpf_prog **fp, union bpf_attr *attr); + +/* helper to convert user pointers passed inside __aligned_u64 fields */ +static inline void __user *u64_to_ptr(__u64 val) +{ + return (void __user *) (unsigned long) val; +} #else static inline void bpf_register_prog_type(struct bpf_prog_type_list *tl) { diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 46ecce4b79ed..d305a3ce0fa7 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -247,12 +247,6 @@ struct bpf_map *bpf_map_get_with_uref(u32 ufd) return map; } -/* helper to convert user pointers passed inside __aligned_u64 fields */ -static void __user *u64_to_ptr(__u64 val) -{ - return (void __user *) (unsigned long) val; -} - int __weak bpf_stackmap_copy(struct bpf_map *map, void *key, void *value) { return -ENOTSUPP;