From patchwork Sat May 28 10:24:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jason A. Donenfeld" X-Patchwork-Id: 12863994 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 B81A1C433EF for ; Sat, 28 May 2022 10:24:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233766AbiE1KYz (ORCPT ); Sat, 28 May 2022 06:24:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56132 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233853AbiE1KYy (ORCPT ); Sat, 28 May 2022 06:24:54 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1AC902618; Sat, 28 May 2022 03:24:53 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 8992360DB6; Sat, 28 May 2022 10:24:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 329ECC34100; Sat, 28 May 2022 10:24:52 +0000 (UTC) Authentication-Results: smtp.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="l7vpP9LP" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zx2c4.com; s=20210105; t=1653733489; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ilJONe0tMPd3rARKJSnYcnn/Wg6UEmJQnFGT2GeNaZw=; b=l7vpP9LPLvjnDaqvYkk9EqgjqdfbJkS4hSmHGgANqR18oYZuupTKWoss8ZFgcGNKt20q/T qbvr9DZU+KlHqtzfY1G0vh5nNcWR26BJiura9Nix+vYUxT6Fx8C0y7Rss+QD48Et6/75hk RZqJxDBE1GeyfTVsHzNIP+5u6AV4stQ= Received: by mail.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id 68b8dd6e (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO); Sat, 28 May 2022 10:24:49 +0000 (UTC) From: "Jason A. Donenfeld" To: herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Cc: "Jason A. Donenfeld" , Zheng Bin , Eric Biggers , stable@vger.kernel.org Subject: [PATCH crypto] crypto: memneq - move into lib/ Date: Sat, 28 May 2022 12:24:29 +0200 Message-Id: <20220528102429.189731-1-Jason@zx2c4.com> In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org This is used by code that doesn't need CONFIG_CRYPTO, so move this into lib/ with a Kconfig option so that it can be selected by whatever needs it. This fixes a linker error Zheng pointed out when CRYPTO_MANAGER_DISABLE_TESTS!=y and CRYPTO=m: lib/crypto/curve25519-selftest.o: In function `curve25519_selftest': curve25519-selftest.c:(.init.text+0x60): undefined reference to `__crypto_memneq' curve25519-selftest.c:(.init.text+0xec): undefined reference to `__crypto_memneq' curve25519-selftest.c:(.init.text+0x114): undefined reference to `__crypto_memneq' curve25519-selftest.c:(.init.text+0x154): undefined reference to `__crypto_memneq' Reported-by: Zheng Bin Cc: Eric Biggers Cc: stable@vger.kernel.org Fixes: aa127963f1ca ("crypto: lib/curve25519 - re-add selftests") Signed-off-by: Jason A. Donenfeld Reviewed-by: Eric Biggers --- I'm traveling over the next week, and there are a few ways to skin this cat, so if somebody here sees issue, feel free to pick this v1 up and fashion a v2 out of it. crypto/Kconfig | 1 + crypto/Makefile | 2 +- lib/Kconfig | 3 +++ lib/Makefile | 1 + lib/crypto/Kconfig | 1 + {crypto => lib}/memneq.c | 0 6 files changed, 7 insertions(+), 1 deletion(-) rename {crypto => lib}/memneq.c (100%) diff --git a/crypto/Kconfig b/crypto/Kconfig index f567271ed10d..38601a072b99 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -15,6 +15,7 @@ source "crypto/async_tx/Kconfig" # menuconfig CRYPTO tristate "Cryptographic API" + select LIB_MEMNEQ help This option provides the core Cryptographic API. diff --git a/crypto/Makefile b/crypto/Makefile index 40d4c2690a49..dbfa53567c92 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -4,7 +4,7 @@ # obj-$(CONFIG_CRYPTO) += crypto.o -crypto-y := api.o cipher.o compress.o memneq.o +crypto-y := api.o cipher.o compress.o obj-$(CONFIG_CRYPTO_ENGINE) += crypto_engine.o obj-$(CONFIG_CRYPTO_FIPS) += fips.o diff --git a/lib/Kconfig b/lib/Kconfig index 6a843639814f..eaaad4d85bf2 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -120,6 +120,9 @@ config INDIRECT_IOMEM_FALLBACK source "lib/crypto/Kconfig" +config LIB_MEMNEQ + bool + config CRC_CCITT tristate "CRC-CCITT functions" help diff --git a/lib/Makefile b/lib/Makefile index 89fcae891361..f01023cda508 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -251,6 +251,7 @@ obj-$(CONFIG_DIMLIB) += dim/ obj-$(CONFIG_SIGNATURE) += digsig.o lib-$(CONFIG_CLZ_TAB) += clz_tab.o +lib-$(CONFIG_LIB_MEMNEQ) += memneq.o obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig index 7ee13c08c970..337d6852643a 100644 --- a/lib/crypto/Kconfig +++ b/lib/crypto/Kconfig @@ -71,6 +71,7 @@ config CRYPTO_LIB_CURVE25519 tristate "Curve25519 scalar multiplication library" depends on CRYPTO_ARCH_HAVE_LIB_CURVE25519 || !CRYPTO_ARCH_HAVE_LIB_CURVE25519 select CRYPTO_LIB_CURVE25519_GENERIC if CRYPTO_ARCH_HAVE_LIB_CURVE25519=n + select LIB_MEMNEQ help Enable the Curve25519 library interface. This interface may be fulfilled by either the generic implementation or an arch-specific diff --git a/crypto/memneq.c b/lib/memneq.c similarity index 100% rename from crypto/memneq.c rename to lib/memneq.c