From nobody Sun Dec 14 18:57:35 2025 Received: from mail-pg1-f176.google.com (mail-pg1-f176.google.com [209.85.215.176]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 03978201260 for ; Wed, 27 Nov 2024 17:30:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.176 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732728622; cv=none; b=A3iaL0Tz1uq5mfTIyvWRG0AhZtxZoAjxmDQBdO4Wkj0YKiJWU7D0epnOv87+d+DnQmr9DCAFr1yeZuHtnOU+svuUd32BAf8pKuODJXk5xYUfV6H8WfoOTisTXP/VfTXzrtEBwX2pQaDKNeHyX0bpe3D+7yB9tiCDzjZcUVpbwc4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732728622; c=relaxed/simple; bh=iNMglRh9O0IJ5qhJoU/e7rnepKok46MiTR21I0SetwU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Ub8Xy6qraNl8coNB0zCjZS4URXbtOTk6m2ID2xxuou+6JHTGanIbzJWU+gh1WKHZ+8gZOZbrYxdZ30ARyPjPDjoapP4+zgc3PJKa0HVtK7+x0PAfWU9v7/FQtysJeWPYIdq7O5fxn9WrgCy++KNfH0ehb400WIXox7XWZX1jxrE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=kPpN2yNl; arc=none smtp.client-ip=209.85.215.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="kPpN2yNl" Received: by mail-pg1-f176.google.com with SMTP id 41be03b00d2f7-7f8b37edeb7so6122612a12.0 for ; Wed, 27 Nov 2024 09:30:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1732728620; x=1733333420; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=bdAeGv9r70I9AKk6TiTHcOSKMA9eOfxpzpLIhOQV/Tg=; b=kPpN2yNlJ61Osc9Ut9V7R08/0KYcS8HT7ldUvI5EmqTdTO/Yk05ay0X6aZSOh/03/L RrE7IzLcYCIQcfHavlVnF25bgInL0nrILzI9J6xVO6LZbfg56JG9awhFUCZ+QcTPgLve vyZiM4sx2O+GLhj0YvidNRSbLwzXBOJ/1AEcdJb8cPrsySenetD35ZuqWirofl3seDmF XOWR10Bh4IiCWCGTXeyqfeBNhiqtX2TxoZ11Y022cnssVsiGuHJP1UX6lExEXbSGpdh4 UQxzFIC3IKErPCxqhbHpBM1f/SxCyvub0xzPTPrv3fq4+3s7+Z2ikWbdi1wQ8pHWEbzE p+UQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732728620; x=1733333420; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=bdAeGv9r70I9AKk6TiTHcOSKMA9eOfxpzpLIhOQV/Tg=; b=A4UNbqzUpoWjn0+kGuWUIJ0INjaGn1fw5+i7u0GZu7fil2kcL3ix//XypsPe28fnqT UrNxOe4f5XVAujFiRuhliIJUcTRgZEdueVH/f/y6Y3p2UBMzja7DOd9TLoroZRWDhliU u5vhTseTwoCxvwIvUvh7aHAn7oRi4ZgdFmnllLC93QJuy06hmKGASgT5JSsZDyC3KNLT Yvj9BMeUI5w2e5xEWQ6xMYmoTCkpxEtqyLnG6H4XofJPR2DKmY9wRK1f81vQit8HHv2X 7OOVkJ0s6zdheD5Zm0wvR39Tphk2PqeyLBuH/Xw4xdmKBYHTfmrRKBdYhbdkpEwslCbZ K0sA== X-Forwarded-Encrypted: i=1; AJvYcCVz0tyrwwI5Uo03W/pX3sAhze2944eDgsapDcPxRRihJyplAAupWqmEpo3as74zL1zNIr8xwYAVMs9zod4=@vger.kernel.org X-Gm-Message-State: AOJu0YypWDtsQq2xOwiBmXGd8YMA/afHw+olVeSCA0hT3/UD9KfTle8T fp8e25F5qqCgnxIM10zSHzTvaWrGWFZJT56fbFZL6J6uM8G3TCqf X-Gm-Gg: ASbGncvudseCwwYtb2odRYz5Dmw8djZf7V1RsYmhwF1Ijv2PA21QcMyUzrG1o0sr62C lAPXbPubkkuKawgdprudb/JhQt8yJwuidyT+al2prwi4qfcTffbphmqdo5NiuYEZwrbb7BGUafH OposEpZrG7c8YfMdUIO49JMY8uAzDiRNzFrKJ5K/4p0bLcb2q4qs3JQHqIlcIMefU14L2wPeVV/ kLfV9+ElNmJcvBijYd/8t5TfPiO43A/TAJyjj8jQae7RNSiY2QBR+4MDDRrWd4CG36zSXgs07sP mvG4CABqs13Q9DQ+pbXsv22hi484 X-Google-Smtp-Source: AGHT+IFBuiAY3Y5+T9rXhE/jtMcxIwZT/PZK882Xa9jD4xmTITkIiWYoAEUJevk5le6u0m/B/dND3Q== X-Received: by 2002:a05:6a20:6a09:b0:1e0:cb94:d3b4 with SMTP id adf61e73a8af0-1e0e0beb9b1mr7629311637.45.1732728620072; Wed, 27 Nov 2024 09:30:20 -0800 (PST) Received: from localhost.localdomain (1-171-29-17.dynamic-ip.hinet.net. [1.171.29.17]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-7fbcc1e3fdbsm9359582a12.30.2024.11.27.09.30.17 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Wed, 27 Nov 2024 09:30:19 -0800 (PST) From: Andy Chiu To: Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, bjorn@rivosinc.com, puranjay12@gmail.com, alexghiti@rivosinc.com, yongxuan.wang@sifive.com, greentime.hu@sifive.com, nick.hu@sifive.com, nylon.chen@sifive.com, tommy.wu@sifive.com, eric.lin@sifive.com, viccent.chen@sifive.com, zong.li@sifive.com, samuel.holland@sifive.com Subject: [PATCH v3 7/7] riscv: ftrace: support PREEMPT Date: Thu, 28 Nov 2024 01:29:08 +0800 Message-Id: <20241127172908.17149-8-andybnac@gmail.com> X-Mailer: git-send-email 2.39.3 (Apple Git-145) In-Reply-To: <20241127172908.17149-1-andybnac@gmail.com> References: <20241127172908.17149-1-andybnac@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Andy Chiu Now, we can safely enable dynamic ftrace with kernel preemption. Signed-off-by: Andy Chiu Reviewed-by: Bj=C3=B6rn T=C3=B6pel --- arch/riscv/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 75a5ebde4427..554e4e363c54 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -148,7 +148,7 @@ config RISCV select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_GRAPH_RETVAL if HAVE_FUNCTION_GRAPH_TRACER - select HAVE_FUNCTION_TRACER if !XIP_KERNEL && !PREEMPTION + select HAVE_FUNCTION_TRACER if !XIP_KERNEL select HAVE_EBPF_JIT if MMU select HAVE_GUP_FAST if MMU select HAVE_FUNCTION_ARG_ACCESS_API --=20 2.39.3 (Apple Git-145)