From patchwork Thu Nov 10 10:42:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tianjia Zhang X-Patchwork-Id: 623994 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 4096AC433FE for ; Thu, 10 Nov 2022 10:42:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229746AbiKJKmS (ORCPT ); Thu, 10 Nov 2022 05:42:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229968AbiKJKmL (ORCPT ); Thu, 10 Nov 2022 05:42:11 -0500 Received: from out30-57.freemail.mail.aliyun.com (out30-57.freemail.mail.aliyun.com [115.124.30.57]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB9E1BF66; Thu, 10 Nov 2022 02:42:09 -0800 (PST) X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R461e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=ay29a033018046059; MF=tianjia.zhang@linux.alibaba.com; NM=1; PH=DS; RN=10; SR=0; TI=SMTPD_---0VUSnXkt_1668076925; Received: from localhost(mailfrom:tianjia.zhang@linux.alibaba.com fp:SMTPD_---0VUSnXkt_1668076925) by smtp.aliyun-inc.com; Thu, 10 Nov 2022 18:42:07 +0800 From: Tianjia Zhang To: Herbert Xu , "David S. Miller" , Catalin Marinas , Will Deacon , Ard Biesheuvel , kernel test robot , linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Tianjia Zhang Subject: [PATCH] crypto: arm64 - Fix unused variable compilation warnings of cpu_feature Date: Thu, 10 Nov 2022 18:42:04 +0800 Message-Id: <20221110104204.85493-1-tianjia.zhang@linux.alibaba.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org The cpu feature defined by MODULE_DEVICE_TABLE is only referenced when compiling as a module, and the warning of unused variable will be encountered when compiling with intree. The warning can be removed by adding the __maybe_unused flag. Fixes: 03c9a333fef1 ("crypto: arm64/ghash - add NEON accelerated fallback for 64-bit PMULL") Fixes: ae1b83c7d572 ("crypto: arm64/sm4 - add CE implementation for GCM mode") Reported-by: kernel test robot Signed-off-by: Tianjia Zhang --- arch/arm64/crypto/ghash-ce-glue.c | 2 +- arch/arm64/crypto/sm4-ce-gcm-glue.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/crypto/ghash-ce-glue.c b/arch/arm64/crypto/ghash-ce-glue.c index 15794fe21a0b..e5e9adc1fcf4 100644 --- a/arch/arm64/crypto/ghash-ce-glue.c +++ b/arch/arm64/crypto/ghash-ce-glue.c @@ -508,7 +508,7 @@ static void __exit ghash_ce_mod_exit(void) crypto_unregister_shash(&ghash_alg); } -static const struct cpu_feature ghash_cpu_feature[] = { +static const struct cpu_feature __maybe_unused ghash_cpu_feature[] = { { cpu_feature(PMULL) }, { } }; MODULE_DEVICE_TABLE(cpu, ghash_cpu_feature); diff --git a/arch/arm64/crypto/sm4-ce-gcm-glue.c b/arch/arm64/crypto/sm4-ce-gcm-glue.c index e90ea0f17beb..c450a2025ca9 100644 --- a/arch/arm64/crypto/sm4-ce-gcm-glue.c +++ b/arch/arm64/crypto/sm4-ce-gcm-glue.c @@ -271,7 +271,7 @@ static void __exit sm4_ce_gcm_exit(void) crypto_unregister_aead(&sm4_gcm_alg); } -static const struct cpu_feature sm4_ce_gcm_cpu_feature[] = { +static const struct cpu_feature __maybe_unused sm4_ce_gcm_cpu_feature[] = { { cpu_feature(PMULL) }, {} };