From patchwork Sun Sep 25 17:53:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 12988079 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2134EC54EE9 for ; Sun, 25 Sep 2022 18:03:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=7uTRwv1Zkfa8RxF0fIJLNZoP97udTatzjsD8swzB5eo=; b=FguLGwsoEMBB6K oXCSU7oYmphU8spNPpkiqSKiy5YczDSeP45XTckC5onxV3oepGU3SWVPZeX4vaucePl9jgj06zrRH rKpX4Z4k+uOLFMSIkf4uMRQ26wh0V81r0NfzvQVpul53pqm2GuPFcyxUo9eylws1MXQ9rOvWmQMSn NFhpjX2yrcepdphrsJ7UX0XHnIBrsY1b8t0v+R4SQe+tv8UEV1myzKz6wOkfU5wsDydMkFNuqPdgH yTy5KcEE+CX6N5np1zsrq+UQeoTXfXxRYe+LuqZ7dcDTlYy0xLHkZyBXeSkk0KiqDEDP2minFKs7V sYbzOTCMj3E+qTHwfwMg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ocVyV-00FXjy-T2; Sun, 25 Sep 2022 18:03:31 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ocVyS-00FXiH-NG for linux-riscv@lists.infradead.org; Sun, 25 Sep 2022 18:03:30 +0000 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 10798615B4; Sun, 25 Sep 2022 18:03:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79D79C433B5; Sun, 25 Sep 2022 18:03:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1664129006; bh=yuYN7bd1gIiPT3BTzCfFO4NEhdO0lqD/4wVB1SM5PeI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CFlI4ua1yv/8H7MMzh25JoBbiK51TEMNW8iitSIxwku+faDMfUDfLX1tHWdS8Otmn Za7OmTGjcHMe5LfNqteaLDje9VTTVsqbpQ12PkkNsyVLVDtltY9kacyKN1kSbMKUvN zbcJ4V1f7eduOwNg8biHS23cNclRj2Vuz4qd6gp9HBqotbLM368LKk1vv5Ip/MP+SQ oDFx80//ItDXuibLAkHHJQEP7i+q+X5xWl0mr8q3K6VJGjhJBiFMHSbmFLcTI4ZzB+ EFom0Vslrm0q8TZUlN4Jyx9oP3T63rALGhsSsLirxEz4vV499ISJicdONPQ7gs22Mv 2B1VEmmlina7A== From: Jisheng Zhang To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Guo Ren , Nathan Chancellor , Nick Desaulniers Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH 1/4] riscv: remove extra level wrappers of trace_hardirqs_{on,off} Date: Mon, 26 Sep 2022 01:53:53 +0800 Message-Id: <20220925175356.681-2-jszhang@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220925175356.681-1-jszhang@kernel.org> References: <20220925175356.681-1-jszhang@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220925_110328_858936_76246B10 X-CRM114-Status: GOOD ( 12.23 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Since riscv is converted to generic entry, there's no need for the extra wrappers of trace_hardirqs_{on,off}. Tested with llvm + irqsoff. Signed-off-by: Jisheng Zhang Reviewed-by: Guo Ren --- arch/riscv/kernel/Makefile | 2 -- arch/riscv/kernel/trace_irq.c | 27 --------------------------- arch/riscv/kernel/trace_irq.h | 11 ----------- 3 files changed, 40 deletions(-) delete mode 100644 arch/riscv/kernel/trace_irq.c delete mode 100644 arch/riscv/kernel/trace_irq.h diff --git a/arch/riscv/kernel/Makefile b/arch/riscv/kernel/Makefile index 01da14e21019..11ee206cc235 100644 --- a/arch/riscv/kernel/Makefile +++ b/arch/riscv/kernel/Makefile @@ -69,8 +69,6 @@ obj-$(CONFIG_CPU_PM) += suspend_entry.o suspend.o obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o obj-$(CONFIG_DYNAMIC_FTRACE) += mcount-dyn.o -obj-$(CONFIG_TRACE_IRQFLAGS) += trace_irq.o - obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o obj-$(CONFIG_HAVE_PERF_REGS) += perf_regs.o obj-$(CONFIG_RISCV_SBI) += sbi.o diff --git a/arch/riscv/kernel/trace_irq.c b/arch/riscv/kernel/trace_irq.c deleted file mode 100644 index 095ac976d7da..000000000000 --- a/arch/riscv/kernel/trace_irq.c +++ /dev/null @@ -1,27 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 2022 Changbin Du - */ - -#include -#include -#include "trace_irq.h" - -/* - * trace_hardirqs_on/off require the caller to setup frame pointer properly. - * Otherwise, CALLER_ADDR1 might trigger an pagging exception in kernel. - * Here we add one extra level so they can be safely called by low - * level entry code which $fp is used for other purpose. - */ - -void __trace_hardirqs_on(void) -{ - trace_hardirqs_on(); -} -NOKPROBE_SYMBOL(__trace_hardirqs_on); - -void __trace_hardirqs_off(void) -{ - trace_hardirqs_off(); -} -NOKPROBE_SYMBOL(__trace_hardirqs_off); diff --git a/arch/riscv/kernel/trace_irq.h b/arch/riscv/kernel/trace_irq.h deleted file mode 100644 index 99fe67377e5e..000000000000 --- a/arch/riscv/kernel/trace_irq.h +++ /dev/null @@ -1,11 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (C) 2022 Changbin Du - */ -#ifndef __TRACE_IRQ_H -#define __TRACE_IRQ_H - -void __trace_hardirqs_on(void); -void __trace_hardirqs_off(void); - -#endif /* __TRACE_IRQ_H */