From patchwork Mon Dec 2 17:33:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vincent Mailhol via B4 Relay X-Patchwork-Id: 13891142 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A5EED1AB51F; Mon, 2 Dec 2024 17:35:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733160904; cv=none; b=PGotV4JpsZzbyrbdVf7WcachkGMWWk80fSn8PAgulj9PiZVKguE1pE9WtUaYf+hSVO/orsgdGNdLX2J7EeepDjf1EPlAyc8waFAEl6KXfO7HjEm26Ri0KcQ+P7N3Te1p1Wa/KPhhWC6JYyn0nXT9Cgxuc09g7L6sNV/L3ey4MVE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733160904; c=relaxed/simple; bh=otRfIIpR9ke8jKx0T5rYqZgdrJ75ZS57/Fik5wYJ77g=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ST88QKS52jUDpnO6NNf62uBPndyJ3su4trElWQ/eqCvR7W4N7zZLxQdZ1eXIFIsiINit528lvO/Dunc7iPxJOnLNJL/c4n3JvjZo6cfPaHRjzK23UoOI7GWyuaW5zzsxTzSeBsy9gss9Qy5DuoJmPsPsgUo3GIkh1itwo+k+msM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mbv/N+QL; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mbv/N+QL" Received: by smtp.kernel.org (Postfix) with ESMTPS id 7D9C2C4CED1; Mon, 2 Dec 2024 17:35:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1733160904; bh=otRfIIpR9ke8jKx0T5rYqZgdrJ75ZS57/Fik5wYJ77g=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=mbv/N+QLcgtpQR8QD3+Ebo0ZkA7L0mv7KOGi59I1rnrkhoHvWWt1ejgoGG0hn3cQH 7vY0bEpghsh4bdGKfDPWkJgjgE9H1kbPj3okgFTgy7GsQ5nHdE7+BlS4CfYCtp+olK IxHhytNs+RjNxOecYykd2M4jLLUkudPct9tMAWZ31vqh51ucXMeaL2xLFjw4duIFDw maNwAvLXVHp5++7gPZAAkp9asgFSy/lVIQgrV/RYVoGKbVqtKt/DGnAwPQJVU+dLvv OQNeCRsZUu9f3KQ7My3boRoQ7P4tB3aYMYuiHyP2HChG+NdQkCk0tLHRZQHijwMmM6 fzSDVM2CqMrSQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6DAD4D7833C; Mon, 2 Dec 2024 17:35:04 +0000 (UTC) From: Vincent Mailhol via B4 Relay Date: Tue, 03 Dec 2024 02:33:28 +0900 Subject: [PATCH 06/10] fortify: replace __is_constexpr() by is_const() in strlen() Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241203-is_constexpr-refactor-v1-6-4e4cbaecc216@wanadoo.fr> References: <20241203-is_constexpr-refactor-v1-0-4e4cbaecc216@wanadoo.fr> In-Reply-To: <20241203-is_constexpr-refactor-v1-0-4e4cbaecc216@wanadoo.fr> To: Linus Torvalds , David Laight , Luc Van Oostenryck , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Yury Norov , Rasmus Villemoes , Kees Cook , "Gustavo A. R. Silva" , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Simona Vetter , Suzuki K Poulose , Mike Leach , James Clark , Alexander Shishkin , Rikard Falkeborn , Martin Uecker Cc: linux-sparse@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, linux-hardening@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, Vincent Mailhol X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1072; i=mailhol.vincent@wanadoo.fr; h=from:subject:message-id; bh=jMI6GLWGOq2qwprnzsUGV4xG+9C9iHAQ1IPi4ZG8B0k=; b=owGbwMvMwCV2McXO4Xp97WbG02pJDOm+749+/rqPW6pvpu+W2UzTPlgk/hDbmVItMcnU/8kTl hNartOudJSyMIhxMciKKbIsK+fkVugo9A479NcSZg4rE8gQBi5OAZiIaBsjw/wOdQfrmY9Kw6X+ neVT9cwNVGdRL0772611cXrWBz25mQx/RT0nvEo4NlP8lov1Q74UufJwLg3WJUzZSUkaeZNe+69 lBQA= X-Developer-Key: i=mailhol.vincent@wanadoo.fr; a=openpgp; fpr=ED8F700574E67F20E574E8E2AB5FEB886DBB99C2 X-Endpoint-Received: by B4 Relay for mailhol.vincent@wanadoo.fr/default with auth_id=291 X-Original-From: Vincent Mailhol Reply-To: mailhol.vincent@wanadoo.fr From: Vincent Mailhol is_const() is a one to one replacement of __is_constexpr(). Do the replacement so that __is_constexpr() can be removed. Signed-off-by: Vincent Mailhol --- include/linux/fortify-string.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/fortify-string.h b/include/linux/fortify-string.h index 0d99bf11d260a3482bbe46e35c7553c0ccfb8b94..e3f2f772c5439ef71eb4a904b4ce27956bc69743 100644 --- a/include/linux/fortify-string.h +++ b/include/linux/fortify-string.h @@ -254,8 +254,8 @@ __FORTIFY_INLINE __kernel_size_t strnlen(const char * const POS p, __kernel_size * Returns number of characters in @p (NOT including the final NUL). * */ -#define strlen(p) \ - __builtin_choose_expr(__is_constexpr(__builtin_strlen(p)), \ +#define strlen(p) \ + __builtin_choose_expr(is_const(__builtin_strlen(p)), \ __builtin_strlen(p), __fortify_strlen(p)) __FORTIFY_INLINE __diagnose_as(__builtin_strlen, 1) __kernel_size_t __fortify_strlen(const char * const POS p)