From patchwork Fri May 19 22:33:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Randy Dunlap X-Patchwork-Id: 684031 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 58DA2C7EE23 for ; Fri, 19 May 2023 22:33:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229616AbjESWdp (ORCPT ); Fri, 19 May 2023 18:33:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229557AbjESWdp (ORCPT ); Fri, 19 May 2023 18:33:45 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DFB891BD; Fri, 19 May 2023 15:33:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: Content-Type:MIME-Version:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-ID:Content-Description:In-Reply-To:References; bh=dzkMn7jXhuW46G6N54fI9VSxhbfWQPb9eBen4fnyZMM=; b=oW7jKK9dD+JkZYQopHTtoZLdIf ifss5k+Ba6BO4/frKHPmNl85tmAk4YqdDhEOMgQznNFvPHj5/8/7esRY7q4PBd2yDceO38esCsptk Hq66dDEhvIakalnxaiNTw0uhYSLcrjsoO+8pcOYB6ic0Pzvfct4mOPU4Fs916n/IYmA30U+ogqdKC yyZ86xBRVgHWTutdUkAzx0MTyB4ufBlb6QyDazHWnSuWZKR+NI4MnedIgreM7ElDZCoFkAHpT8E+h lXzE29T9kkNXQpIzwfctQr8e82xBxy8b2XtqO3hwfpn8R1JkxyPdWbjWfegu8O45gKn5tmEUGa+er LkAS18Tg==; Received: from [2601:1c2:980:9ec0::2764] (helo=bombadil.infradead.org) by bombadil.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1q08fJ-00HShm-0H; Fri, 19 May 2023 22:33:37 +0000 From: Randy Dunlap To: linux-kernel@vger.kernel.org Cc: Randy Dunlap , =?utf-8?q?Breno_Leit=C3=A3o?= , Nayna Jain , Paulo Flabiano Smorigo , Herbert Xu , "David S. Miller" , linux-crypto@vger.kernel.org, Michael Ellerman , Nicholas Piggin , Christophe Leroy , linuxppc-dev@lists.ozlabs.org Subject: [PATCH] powerpc/crypto: fix build warnings when DEBUG_FS is not enabled Date: Fri, 19 May 2023 15:33:34 -0700 Message-Id: <20230519223334.11992-1-rdunlap@infradead.org> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Fix build warnings when DEBUG_FS is not enabled by using an empty do-while loop instead of a value: In file included from ../drivers/crypto/nx/nx.c:27: ../drivers/crypto/nx/nx.c: In function 'nx_register_algs': ../drivers/crypto/nx/nx.h:173:33: warning: statement with no effect [-Wunused-value] 173 | #define NX_DEBUGFS_INIT(drv) (0) ../drivers/crypto/nx/nx.c:573:9: note: in expansion of macro 'NX_DEBUGFS_INIT' 573 | NX_DEBUGFS_INIT(&nx_driver); ../drivers/crypto/nx/nx.c: In function 'nx_remove': ../drivers/crypto/nx/nx.h:174:33: warning: statement with no effect [-Wunused-value] 174 | #define NX_DEBUGFS_FINI(drv) (0) ../drivers/crypto/nx/nx.c:793:17: note: in expansion of macro 'NX_DEBUGFS_FINI' 793 | NX_DEBUGFS_FINI(&nx_driver); Also, there is no need to build nx_debugfs.o when DEBUG_FS is not enabled, so change the Makefile to accommodate that. Fixes: ae0222b7289d ("powerpc/crypto: nx driver code supporting nx encryption") Fixes: aef7b31c8833 ("powerpc/crypto: Build files for the nx device driver") Signed-off-by: Randy Dunlap Cc: Breno Leitão Cc: Nayna Jain Cc: Paulo Flabiano Smorigo Cc: Herbert Xu Cc: "David S. Miller" Cc: linux-crypto@vger.kernel.org Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Christophe Leroy Cc: linuxppc-dev@lists.ozlabs.org --- drivers/crypto/nx/Makefile | 2 +- drivers/crypto/nx/nx.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff -- a/drivers/crypto/nx/Makefile b/drivers/crypto/nx/Makefile --- a/drivers/crypto/nx/Makefile +++ b/drivers/crypto/nx/Makefile @@ -1,7 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_CRYPTO_DEV_NX_ENCRYPT) += nx-crypto.o nx-crypto-objs := nx.o \ - nx_debugfs.o \ nx-aes-cbc.o \ nx-aes-ecb.o \ nx-aes-gcm.o \ @@ -11,6 +10,7 @@ nx-crypto-objs := nx.o \ nx-sha256.o \ nx-sha512.o +nx-crypto-$(CONFIG_DEBUG_FS) += nx_debugfs.o obj-$(CONFIG_CRYPTO_DEV_NX_COMPRESS_PSERIES) += nx-compress-pseries.o nx-compress.o obj-$(CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERNV) += nx-compress-powernv.o nx-compress.o nx-compress-objs := nx-842.o diff -- a/drivers/crypto/nx/nx.h b/drivers/crypto/nx/nx.h --- a/drivers/crypto/nx/nx.h +++ b/drivers/crypto/nx/nx.h @@ -170,8 +170,8 @@ struct nx_sg *nx_walk_and_build(struct n void nx_debugfs_init(struct nx_crypto_driver *); void nx_debugfs_fini(struct nx_crypto_driver *); #else -#define NX_DEBUGFS_INIT(drv) (0) -#define NX_DEBUGFS_FINI(drv) (0) +#define NX_DEBUGFS_INIT(drv) do {} while (0) +#define NX_DEBUGFS_FINI(drv) do {} while (0) #endif #define NX_PAGE_NUM(x) ((u64)(x) & 0xfffffffffffff000ULL)