From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A3A9C282C3 for ; Tue, 22 Jan 2019 09:24:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 588A3218D9 for ; Tue, 22 Jan 2019 09:24:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548149094; bh=pkOI/H7W1wMnCfOjPyihp+vGTd0TKHnCGrd+N94Ka98=; h=Subject:To:From:Date:List-ID:From; b=fLkC51tneBJKjmKIMGvFnVBt0zYnOR1F6NLzDyDqZOKDAMy5Vul3fVBgI3/J5GDaG O4X3WYfEOskLc9Q62uzyYikspAUWl+/fWOFRTgw+qUePWd/cJ3f0J2/ED/MwVak08l EhnGhss6We0cQsy5HVtruYJsA1R2avO4wHeawzfo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728016AbfAVJYw (ORCPT ); Tue, 22 Jan 2019 04:24:52 -0500 Received: from mail.kernel.org ([198.145.29.99]:48464 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727974AbfAVJYs (ORCPT ); Tue, 22 Jan 2019 04:24:48 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (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 D7D33218DE; Tue, 22 Jan 2019 09:24:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548149087; bh=pkOI/H7W1wMnCfOjPyihp+vGTd0TKHnCGrd+N94Ka98=; h=Subject:To:From:Date:From; b=O1s5Wj1Zurth3RR86dsrHa7ZlE3E4CzH+124+NwcYmPe0qHMS+0kzwopV3yUNFPQ0 jJPvqTs9f4nR8kvI4ZHDvv0CwXhw2mbQWO+Oa/dlClB3RVzqQgHE5xJIcO5V+fJONq Ve5OxT+6BY0Pem8qaHFas9JQP9GCuh76gLScTx+0= Subject: patch "tools/firmware/ihex2fw: Simplify next record offset calculation" added to driver-core-testing To: andrew.smirnov@gmail.com, akpm@linux-foundation.org, cphealy@gmail.com, dwmw2@infradead.org, gregkh@linuxfoundation.org, kyle@kernel.org, linux-kernel@vger.kernel.org, yamada.masahiro@socionext.com From: Date: Tue, 22 Jan 2019 10:24:41 +0100 Message-ID: <154814908160235@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a note to let you know that I've just added the patch titled tools/firmware/ihex2fw: Simplify next record offset calculation to my driver-core git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git in the driver-core-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the driver-core-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. >From 2ef8179bb7a6817de3fc9407ab55aa357f2d1e4d Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Thu, 20 Dec 2018 23:28:40 -0800 Subject: tools/firmware/ihex2fw: Simplify next record offset calculation We can convert original expression for 'writelen" to use ALIGN as follows: (p->len + 9) & ~3 => (p->len + 6 + 3) & ~3 => ALIGN(p->len + 6, 4) Now, subsituting "p->len + 6" with "p->len + sizeof(p->addr) + sizeof(p->len)" we end up with the same expression as used by kernel couterpart in linux/ihex.h: ALIGN(p->len + sizeof(p->addr) + sizeof(p->len), 4) That is a full size of the record, aligned to 4 bytes. No functional change intended. Cc: Chris Healy Cc: Kyle McMartin Cc: Andrew Morton Cc: Masahiro Yamada Cc: David Woodhouse Cc: Greg Kroah-Hartman Cc: linux-kernel Signed-off-by: Andrey Smirnov Signed-off-by: Greg Kroah-Hartman --- tools/firmware/ihex2fw.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/tools/firmware/ihex2fw.c b/tools/firmware/ihex2fw.c index b58dd061e978..e081cef730d8 100644 --- a/tools/firmware/ihex2fw.c +++ b/tools/firmware/ihex2fw.c @@ -24,6 +24,10 @@ #include +#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) +#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) +#define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) + struct ihex_binrec { struct ihex_binrec *next; /* not part of the real data structure */ uint32_t addr; @@ -259,13 +263,18 @@ static void file_record(struct ihex_binrec *record) *p = record; } +static uint16_t ihex_binrec_size(struct ihex_binrec *p) +{ + return p->len + sizeof(p->addr) + sizeof(p->len); +} + static int output_records(int outfd) { unsigned char zeroes[6] = {0, 0, 0, 0, 0, 0}; struct ihex_binrec *p = records; while (p) { - uint16_t writelen = (p->len + 9) & ~3; + uint16_t writelen = ALIGN(ihex_binrec_size(p), 4); p->addr = htonl(p->addr); p->len = htons(p->len); -- 2.20.1