From patchwork Mon Dec 2 17:33:31 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: 13891146 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 5420B1B07AE; Mon, 2 Dec 2024 17:35:05 +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=1733160905; cv=none; b=HIkmDi/7MXgDiT/fJpwFO57DNq65fm4/rhrf5/+N9cfMtrN6inmNfQ558FU+odDZBgAH8N519y3FLD+99isD0JpGUE8AzjPn3bsln2fBp8AVriBheTJIlXk+JC4NiG6ic4UhxbAkLvi9OXUVN6GSMbJU0+xp4Yzu/NrUMDVdu+c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733160905; c=relaxed/simple; bh=yr8nPgorqsKZslW18S7DrfbJzdSBjOy5Dm3FgmZaCBU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Kcg11sOe3MO5XqAGKUblfAxwMZDMKwxCjyxbiV2pKZMoypqZrk5I8mLPRlO5i85d1HXviQnFyuWqmkPruUpSX/WXp8TRBqHcczi1w4NZZbrcJmqnV09COkpDMo2etFAKfX4nqMHnD7src/ISlNdsthp8MGqIEGbvack5ouYe6DM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FXO4sW7K; 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="FXO4sW7K" Received: by smtp.kernel.org (Postfix) with ESMTPS id D6DCAC4CEE1; 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=yr8nPgorqsKZslW18S7DrfbJzdSBjOy5Dm3FgmZaCBU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=FXO4sW7K+gc2vwM1se4GLS2jISLC4Hv85218fTBlxgqHaepVn0KVqtw5xphianfNI h+wVBnQYK0tMREorbt8f9+hmHMOkOSVx+q+E2s5zbRrnGuoCllEFGiWbUwo6Fjllmy fCUyb8OgeS7twO7222857W4QWof1k1Sa8HgeTQwrLcD1Ei793+c8JCrdZ5RXLygiws ZTk+5w6Tx5013RuYIOLIHRFEV6bNFL/FTUUdlecC4pe15aPkt4CYE2ksT3Nnc0r5qj N5aHHomI55Mhxi7/41e44zKJc3dncVCnCU4vbjgHyJ8SVCvF77uaHJSsGp7/RVdgkQ d6o3sa2MQfa2Q== 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 C3BE6D7833C; Mon, 2 Dec 2024 17:35:04 +0000 (UTC) From: Vincent Mailhol via B4 Relay Date: Tue, 03 Dec 2024 02:33:31 +0900 Subject: [PATCH 09/10] coresight: etm4x: replace __is_const_expr() by is_const() 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-v1-9-4e4cbaecc216@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=1152; i=mailhol.vincent@wanadoo.fr; h=from:subject:message-id; bh=2a9e0Sg1+HnRtDgEsb84OXVQoFxUHpuXTO0qI7avR5g=; b=owGbwMvMwCV2McXO4Xp97WbG02pJDOm+749O6FPas2ybatTeWc7prF16x3VX6XbM9TgktOrU7 v8zpTx3dZSyMIhxMciKKbIsK+fkVugo9A479NcSZg4rE8gQBi5OAZjIEUmGf4rH5jmVbpEP/Ddj A+/Sm/sTG/nmCVoanpxpWRL3vYGNfyIjQ/eqI0k+TNe37ZmStZpB6ZREi/BkBbfsadXL0zZxGHr +5wYA 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. Refer to [1] for an explaination of why __builtin_constant_p() can not be used as a replacement here. [1] commit 4d45bc82df66 ("coresight: etm4x: avoid build failure with unrolled loops") Link: https://git.kernel.org/torvalds/c/4d45bc82df66 Signed-off-by: Vincent Mailhol --- drivers/hwtracing/coresight/coresight-etm4x.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 9e9165f62e81fe5a87d35b4e30bc23f93cb211ec..91cf81ac46f44418f76783c102477d08f9abc70f 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -492,7 +492,7 @@ ({ \ u64 __val; \ \ - if (__is_constexpr((offset))) \ + if (is_const(offset)) \ __val = read_etm4x_sysreg_const_offset((offset)); \ else \ __val = etm4x_sysreg_read((offset), true, (_64bit)); \