From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 16DA3157A55 for ; Wed, 24 Apr 2024 07:18:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713943093; cv=none; b=Pn/Xd97PTv2LrGA+TqSqRrm/Y7VYuNSbkkL0d10PQCYu4Kw5k71QL8vGwfop1T66H7ox4tI0bZ0GhsRPelgwvcJT58XZwPsn+pq4UfrZrRRIYOXkc5r8GYI0BUX3vwdu2euzDo6OGYDlllOqHzlYOe6iuLlo3ucaDruLCBgK44M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713943093; c=relaxed/simple; bh=rHvTSou8/1tjMflgd49XX0brDYVz5e086lRWrdYfOqU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=KD2FXzJ2egOZbY75xE1HNViUPBBKII2J5xSVPSKKFAfj3H0RoEIcc1MWCBGw7kv1a9xsB9SNSxVpCwPigrAdkFpooQi4a+ZCbcyVJ216+9kGNBLJC9SefTfjCTzh7SH9rXoAXtCQhtjBkg12u35DpF2B5pNBSUR04H3+eMIyRaM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=aj1eIAiL; arc=none smtp.client-ip=192.198.163.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="aj1eIAiL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1713943092; x=1745479092; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=rHvTSou8/1tjMflgd49XX0brDYVz5e086lRWrdYfOqU=; b=aj1eIAiLlCMhFMsGJ/ElQQ60l63sWJ4LLJQtL9cYVfNNEAfng/+daKLL ifxfq5Cc3iUZOu0Qu9Tai2bNzZzyb2KsSQil4qxtl2YWIYZ0Oyqi+ORWd X1CorPlpxrW+U2soxUB3sjXPXeQHiXEBGTJQnuRDtPUvVmgIvZh99rW4i zVxgqQmrYC9d5Q5FW7n/VR6L2K39ju80YKE0iwMnfaTLLuCxxfHVkuLn1 bC4XZ1AOqRGcd534efLySlU0pEk25ACV16uVxMlF+THHKij8+mw2behSh O8YMS6I835woHXBXdhlJEUOqOpGBXokiKGS/fU9H7cqeY7AsWQkT3MNyf g==; X-CSE-ConnectionGUID: LIj3PxRNT6uGqvJVwbOdwA== X-CSE-MsgGUID: rbOOBUq2SpyTLmpElw/KPw== X-IronPort-AV: E=McAfee;i="6600,9927,11053"; a="27073083" X-IronPort-AV: E=Sophos;i="6.07,225,1708416000"; d="scan'208";a="27073083" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2024 00:18:12 -0700 X-CSE-ConnectionGUID: dBBdC8bbSQiYj5zuD91yuw== X-CSE-MsgGUID: GfVKluqPRAaPI5u/XhXE0A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,225,1708416000"; d="scan'208";a="24664637" Received: from unknown (HELO allen-box.sh.intel.com) ([10.239.159.127]) by fmviesa010.fm.intel.com with ESMTP; 24 Apr 2024 00:18:09 -0700 From: Lu Baolu To: Joerg Roedel Cc: Jason Gunthorpe , Jingqi Liu , Dimitri Sivanich , Uros Bizjak , Colin Ian King , iommu@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 01/18] iommu/vt-d: Remove redundant assignment to variable err Date: Wed, 24 Apr 2024 15:16:27 +0800 Message-Id: <20240424071644.178250-2-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240424071644.178250-1-baolu.lu@linux.intel.com> References: <20240424071644.178250-1-baolu.lu@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Colin Ian King Variable err is being assigned a value that is never read. It is either being re-assigned later on error exit paths, or never referenced on the non-error path. Cleans up clang scan build warning: drivers/iommu/intel/dmar.c:1070:2: warning: Value stored to 'err' is never read [deadcode.DeadStores]` Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20240411090535.306326-1-colin.i.king@gmail.com Signed-off-by: Lu Baolu --- drivers/iommu/intel/dmar.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/iommu/intel/dmar.c b/drivers/iommu/intel/dmar.c index 36d7427b1202..351be9455214 100644 --- a/drivers/iommu/intel/dmar.c +++ b/drivers/iommu/intel/dmar.c @@ -1067,7 +1067,6 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd) goto error_free_seq_id; } - err = -EINVAL; if (!cap_sagaw(iommu->cap) && (!ecap_smts(iommu->ecap) || ecap_slts(iommu->ecap))) { pr_info("%s: No supported address widths. Not attempting DMA translation.\n", -- 2.34.1