From patchwork Fri Mar 4 18:03:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12769725 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 73F24C433EF for ; Fri, 4 Mar 2022 18:04:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241092AbiCDSEz (ORCPT ); Fri, 4 Mar 2022 13:04:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241155AbiCDSEx (ORCPT ); Fri, 4 Mar 2022 13:04:53 -0500 Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C3B2CB1A for ; Fri, 4 Mar 2022 10:04:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1646417041; x=1677953041; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ESJkjFrtdBYgKRHjc5+6EJ83n41XVoBRF4xGFcDkx3o=; b=POrKdXB5Uda1pMPDdUtDpAw/0Rl/yknC1oSJemyBFRFZ9DFQQp7qIt1L czlDxtvaeyJTnvyPgS3wE1KfudprtjwyA34NxfQ6ZlkFbzERxgb1x2TOD ijOjQXue9Bz5HzvUR3Sbq6mwK1+XntHg3afidFA1VXwQE8M6e2LqrMx62 W4guwLXPJHmxVhQWi6kojNsMp5BsaW8pneMLUEYBLmTM9jfAZoX/dsn8S RFwu2vuSHwH5HCNXz36f5OCSC6nheibQs6E+4g/Z5E2fxm3AldGbx20/U l4SzwmdbI2kN3Z6SeEwDYP3lsKd5G0TAL6b9gAq4pCTstrzP0+e365T0/ w==; X-IronPort-AV: E=McAfee;i="6200,9189,10276"; a="314744408" X-IronPort-AV: E=Sophos;i="5.90,155,1643702400"; d="scan'208";a="314744408" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Mar 2022 10:04:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,155,1643702400"; d="scan'208";a="552308532" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga008.jf.intel.com with ESMTP; 04 Mar 2022 10:04:00 -0800 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, Giovanni Cabiddu Subject: [PATCH 1/3] crypto: qat - remove unneeded assignment Date: Fri, 4 Mar 2022 18:03:54 +0000 Message-Id: <20220304180356.22469-2-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220304180356.22469-1-giovanni.cabiddu@intel.com> References: <20220304180356.22469-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org The function adf_gen4_get_vf2pf_sources() computes a mask which is stored in a variable which is returned and not used. Remove superfluous assignment of variable. This is to fix the following warning when compiling the QAT driver with clang scan-build: drivers/crypto/qat/qat_common/adf_gen4_pfvf.c:46:9: warning: Although the value stored to 'sou' is used in the enclosing expression, the value is never actually read from 'sou' [deadcode.DeadStores] return sou &= ~mask; ^ ~~~~~ Fixes: 5901b4af6e07 ("crypto: qat - fix access to PFVF interrupt registers for GEN4") Signed-off-by: Giovanni Cabiddu --- drivers/crypto/qat/qat_common/adf_gen4_pfvf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c b/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c index 3b3ea849c5e5..d80d493a7756 100644 --- a/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c +++ b/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c @@ -43,7 +43,7 @@ static u32 adf_gen4_get_vf2pf_sources(void __iomem *pmisc_addr) sou = ADF_CSR_RD(pmisc_addr, ADF_4XXX_VM2PF_SOU); mask = ADF_CSR_RD(pmisc_addr, ADF_4XXX_VM2PF_MSK); - return sou &= ~mask; + return sou & ~mask; } static void adf_gen4_enable_vf2pf_interrupts(void __iomem *pmisc_addr,