From patchwork Wed Mar 25 02:59:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 1261119 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 48nCXd4ZPLz9sRY for ; Wed, 25 Mar 2020 14:00:15 +1100 (AEDT) Received: from localhost ([::1]:58508 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jGwH6-00014Z-SQ for incoming@patchwork.ozlabs.org; Tue, 24 Mar 2020 23:00:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45446) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jGwGd-00013w-PJ for qemu-devel@nongnu.org; Tue, 24 Mar 2020 22:59:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jGwGc-0004zJ-Km for qemu-devel@nongnu.org; Tue, 24 Mar 2020 22:59:43 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:3213 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jGwGc-0004x2-92; Tue, 24 Mar 2020 22:59:42 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 9D30A52F1980FDBAAC69; Wed, 25 Mar 2020 10:59:37 +0800 (CST) Received: from huawei.com (10.133.205.93) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.487.0; Wed, 25 Mar 2020 10:59:27 +0800 From: Chen Qun To: , Subject: [PATCH v5 1/3] scsi/esp-pci: add g_assert() for fix clang analyzer warning in esp_pci_io_write() Date: Wed, 25 Mar 2020 10:59:17 +0800 Message-ID: <20200325025919.21316-2-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20200325025919.21316-1-kuhn.chenqun@huawei.com> References: <20200325025919.21316-1-kuhn.chenqun@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.133.205.93] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.190 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: zhang.zhanghailiang@huawei.com, laurent@vivier.eu, Paolo Bonzini , Euler Robot , Chen Qun , philmd@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Clang static code analyzer show warning: hw/scsi/esp-pci.c:198:9: warning: Value stored to 'size' is never read size = 4; ^ ~ Reported-by: Euler Robot Signed-off-by: Chen Qun Reviewed-by: Laurent Vivier --- Cc: Paolo Bonzini Cc:Fam Zheng v1->v2: keep ' size = 4' and add 'g_assert(size >= 4)' after if() statement. (Base on Laurent's comments) --- hw/scsi/esp-pci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/scsi/esp-pci.c b/hw/scsi/esp-pci.c index d5a1f9e017..497a8d5901 100644 --- a/hw/scsi/esp-pci.c +++ b/hw/scsi/esp-pci.c @@ -197,6 +197,7 @@ static void esp_pci_io_write(void *opaque, hwaddr addr, addr &= ~3; size = 4; } + g_assert(size >= 4); if (addr < 0x40) { /* SCSI core reg */ From patchwork Wed Mar 25 02:59:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 1261118 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 48nCXd5lvrz9sSK for ; Wed, 25 Mar 2020 14:00:16 +1100 (AEDT) Received: from localhost ([::1]:58512 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jGwH7-00014h-CT for incoming@patchwork.ozlabs.org; Tue, 24 Mar 2020 23:00:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45447) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jGwGd-00013x-Q3 for qemu-devel@nongnu.org; Tue, 24 Mar 2020 22:59:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jGwGc-0004zP-Kk for qemu-devel@nongnu.org; Tue, 24 Mar 2020 22:59:43 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:3212 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jGwGc-0004x1-9F; Tue, 24 Mar 2020 22:59:42 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id A1D3C60B2E7D08106BF8; Wed, 25 Mar 2020 10:59:37 +0800 (CST) Received: from huawei.com (10.133.205.93) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.487.0; Wed, 25 Mar 2020 10:59:28 +0800 From: Chen Qun To: , Subject: [PATCH v5 2/3] display/blizzard: use extract16() for fix clang analyzer warning in blizzard_draw_line16_32() Date: Wed, 25 Mar 2020 10:59:18 +0800 Message-ID: <20200325025919.21316-3-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20200325025919.21316-1-kuhn.chenqun@huawei.com> References: <20200325025919.21316-1-kuhn.chenqun@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.133.205.93] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.190 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , zhang.zhanghailiang@huawei.com, philmd@redhat.com, laurent@vivier.eu, Euler Robot , Chen Qun Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Clang static code analyzer show warning: hw/display/blizzard.c:940:9: warning: Value stored to 'data' is never read data >>= 5; ^ ~ Reported-by: Euler Robot Signed-off-by: Chen Qun Reviewed-by: Laurent Vivier --- Cc: Andrzej Zaborowski Cc: Peter Maydell v1->v2: Use extract16() function instead of bit operation(Base on Laurent's comments). --- hw/display/blizzard.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/hw/display/blizzard.c b/hw/display/blizzard.c index 359e399c2a..105241577d 100644 --- a/hw/display/blizzard.c +++ b/hw/display/blizzard.c @@ -19,6 +19,7 @@ */ #include "qemu/osdep.h" +#include "qemu/bitops.h" #include "ui/console.h" #include "hw/display/blizzard.h" #include "ui/pixel_ops.h" @@ -932,12 +933,9 @@ static void blizzard_draw_line16_32(uint32_t *dest, const uint16_t *end = (const void *) src + width; while (src < end) { data = *src ++; - b = (data & 0x1f) << 3; - data >>= 5; - g = (data & 0x3f) << 2; - data >>= 6; - r = (data & 0x1f) << 3; - data >>= 5; + b = extract16(data, 0, 5) << 3; + g = extract16(data, 5, 6) << 2; + r = extract16(data, 11, 5) << 3; *dest++ = rgb_to_pixel32(r, g, b); } } From patchwork Wed Mar 25 02:59:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 1261116 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 48nCXd5T8vz9sR4 for ; Wed, 25 Mar 2020 14:00:16 +1100 (AEDT) Received: from localhost ([::1]:58514 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jGwH8-00014t-3P for incoming@patchwork.ozlabs.org; Tue, 24 Mar 2020 23:00:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45448) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jGwGd-00013y-Ph for qemu-devel@nongnu.org; Tue, 24 Mar 2020 22:59:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jGwGc-0004zR-Kk for qemu-devel@nongnu.org; Tue, 24 Mar 2020 22:59:43 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:3725 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jGwGc-0004x0-90; Tue, 24 Mar 2020 22:59:42 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id CD1F3D59120C6882B2BE; Wed, 25 Mar 2020 10:59:37 +0800 (CST) Received: from huawei.com (10.133.205.93) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.487.0; Wed, 25 Mar 2020 10:59:28 +0800 From: Chen Qun To: , Subject: [PATCH v5 3/3] timer/exynos4210_mct: Remove redundant statement in exynos4210_mct_write() Date: Wed, 25 Mar 2020 10:59:19 +0800 Message-ID: <20200325025919.21316-4-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20200325025919.21316-1-kuhn.chenqun@huawei.com> References: <20200325025919.21316-1-kuhn.chenqun@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.133.205.93] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.191 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , zhang.zhanghailiang@huawei.com, Igor Mitsyanko , laurent@vivier.eu, Euler Robot , Chen Qun , philmd@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Clang static code analyzer show warning: hw/timer/exynos4210_mct.c:1370:9: warning: Value stored to 'index' is never read index = GET_L_TIMER_CNT_REG_IDX(offset, lt_i); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ hw/timer/exynos4210_mct.c:1399:9: warning: Value stored to 'index' is never read index = GET_L_TIMER_CNT_REG_IDX(offset, lt_i); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ hw/timer/exynos4210_mct.c:1441:9: warning: Value stored to 'index' is never read index = GET_L_TIMER_CNT_REG_IDX(offset, lt_i); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Reported-by: Euler Robot Signed-off-by: Chen Qun Reviewed-by: Laurent Vivier Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis --- Cc: Igor Mitsyanko Cc: Peter Maydell --- hw/timer/exynos4210_mct.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/hw/timer/exynos4210_mct.c b/hw/timer/exynos4210_mct.c index 944120aea5..570cf7075b 100644 --- a/hw/timer/exynos4210_mct.c +++ b/hw/timer/exynos4210_mct.c @@ -1367,7 +1367,6 @@ static void exynos4210_mct_write(void *opaque, hwaddr offset, case L0_TCNTB: case L1_TCNTB: lt_i = GET_L_TIMER_IDX(offset); - index = GET_L_TIMER_CNT_REG_IDX(offset, lt_i); /* * TCNTB is updated to internal register only after CNT expired. @@ -1396,7 +1395,6 @@ static void exynos4210_mct_write(void *opaque, hwaddr offset, case L0_ICNTB: case L1_ICNTB: lt_i = GET_L_TIMER_IDX(offset); - index = GET_L_TIMER_CNT_REG_IDX(offset, lt_i); s->l_timer[lt_i].reg.wstat |= L_WSTAT_ICNTB_WRITE; s->l_timer[lt_i].reg.cnt[L_REG_CNT_ICNTB] = value & @@ -1438,8 +1436,6 @@ static void exynos4210_mct_write(void *opaque, hwaddr offset, case L0_FRCNTB: case L1_FRCNTB: lt_i = GET_L_TIMER_IDX(offset); - index = GET_L_TIMER_CNT_REG_IDX(offset, lt_i); - DPRINTF("local timer[%d] FRCNTB write %llx\n", lt_i, value); s->l_timer[lt_i].reg.wstat |= L_WSTAT_FRCCNTB_WRITE;