Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752153AbbEIVk6 (ORCPT ); Sat, 9 May 2015 17:40:58 -0400 Received: from shards.monkeyblade.net ([149.20.54.216]:45782 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751510AbbEIVkz (ORCPT ); Sat, 9 May 2015 17:40:55 -0400 Date: Sat, 09 May 2015 17:40:53 -0400 (EDT) Message-Id: <20150509.174053.1205273752891974916.davem@davemloft.net> To: nschichan@freebox.fr Cc: linux@arm.linux.org.uk, mgherzan@gmail.com, daniel@iogearbox.net, ast@plumgrid.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH v2] ARM: net fix emit_udiv() for BPF_ALU | BPF_DIV | BPF_K intruction. From: David Miller In-Reply-To: <1430929916-15852-1-git-send-email-nschichan@freebox.fr> References: <1430929916-15852-1-git-send-email-nschichan@freebox.fr> X-Mailer: Mew version 6.6 on Emacs 24.5 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Sat, 09 May 2015 14:40:55 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 791 Lines: 18 From: Nicolas Schichan Date: Wed, 6 May 2015 18:31:56 +0200 > In that case, emit_udiv() will be called with rn == ARM_R0 (r_scratch) > and loading rm first into ARM_R0 will result in jit_udiv() function > being called the same dividend and divisor. Fix that by loading rn > first into ARM_R1 and then rm into ARM_R0. > > Signed-off-by: Nicolas Schichan > Cc: # v3.13+ > Fixes: aee636c4809f (bpf: do not use reciprocal divide) Do you want me to push this via my net tree? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/