From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752621AbeBFQq6 (ORCPT ); Tue, 6 Feb 2018 11:46:58 -0500 Received: from gateway31.websitewelcome.com ([192.185.143.5]:39811 "EHLO gateway31.websitewelcome.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752364AbeBFQqv (ORCPT ); Tue, 6 Feb 2018 11:46:51 -0500 Date: Tue, 6 Feb 2018 10:46:49 -0600 From: "Gustavo A. R. Silva" To: linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Mauro Carvalho Chehab , Hans Verkuil , Jacob chen , Heiko Stuebner , Antti Palosaari , Ramesh Shanmugasundaram , "Gustavo A. R. Silva" Subject: [PATCH v3 0/8] use 64-bit arithmetic instead of 32-bit Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 189.175.4.238 X-Source-L: No X-Exim-ID: 1ej6OP-000kDo-Vv X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: (embeddedgus) [189.175.4.238]:46606 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 8 X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add suffix LL and ULL to various constants in order to give the compiler complete information about the proper arithmetic to use. Such constants are used in contexts that expect expressions of type u64 (64 bits, unsigned) and s64 (64 bits, signed). The mentioned expressions are currently being evaluated using 32-bit arithmetic, wich in some cases can lead to unintentional integer overflows. This patchset addresses the following "Unintentional integer overflow" Coverity reports: CIDs: 200604, 1056807, 1056808, 1271223, 1324146 CIDs: 1392628, 1392630, 1446589, 1454996, 1458347 Thank you Changes in v2: - Update subject and changelog to better reflect the proposed code changes. - Add suffix ULL and LL to constants instead of casting variables. - Extend the proposed code changes to other similar cases that had not previously been considered in v1 of this patchset. Changes in v3: - Mention the specific Coverity report in all commit messages. Gustavo A. R. Silva (8): rtl2832: use 64-bit arithmetic instead of 32-bit in rtl2832_set_frontend dvb-frontends: ves1820: use 64-bit arithmetic instead of 32-bit i2c: max2175: use 64-bit arithmetic instead of 32-bit i2c: ov9650: use 64-bit arithmetic instead of 32-bit pci: cx88-input: use 64-bit arithmetic instead of 32-bit rockchip/rga: use 64-bit arithmetic instead of 32-bit platform: sh_veu: use 64-bit arithmetic instead of 32-bit platform: vivid-cec: use 64-bit arithmetic instead of 32-bit drivers/media/dvb-frontends/rtl2832.c | 4 ++-- drivers/media/dvb-frontends/ves1820.c | 2 +- drivers/media/i2c/max2175.c | 2 +- drivers/media/i2c/ov9650.c | 9 +++++---- drivers/media/pci/cx88/cx88-input.c | 4 ++-- drivers/media/platform/rockchip/rga/rga-buf.c | 3 ++- drivers/media/platform/sh_veu.c | 4 ++-- drivers/media/platform/vivid/vivid-cec.c | 11 +++++++++-- 8 files changed, 24 insertions(+), 15 deletions(-) -- 2.7.4