From patchwork Fri Dec 8 16:30:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Naveen N Rao X-Patchwork-Id: 1873874 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=ME9PtPfy; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=patchwork.ozlabs.org) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Smxcb0bd8z23mf for ; Sat, 9 Dec 2023 03:37:02 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=ME9PtPfy; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4SmxcZ4Z6Bz3vc3 for ; Sat, 9 Dec 2023 03:37:02 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=ME9PtPfy; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2604:1380:40e1:4800::1; helo=sin.source.kernel.org; envelope-from=naveen@kernel.org; receiver=lists.ozlabs.org) Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4SmxZY0GZrz3d9Y for ; Sat, 9 Dec 2023 03:35:16 +1100 (AEDT) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id BD56ECE28A4; Fri, 8 Dec 2023 16:35:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 34BC3C433C7; Fri, 8 Dec 2023 16:35:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1702053313; bh=v2mYSDmjqdbapRfO1Kx9bcMiig2SVy+s9w1cLpmU0IY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ME9PtPfym6Ef0DDZb+Yjsva6Tx8a2WFMT7p9z045HUvh9QMf6RYkYWO9RVuxKCFgU HJcwtvyeTDA4KEjFRvwrIbXOu7CmVeFAVv63UTCBUWBRfBvmLPohHZUqUw8UlH+OjM 7XtiUv082yDmJAx1zPZCY03aeXILFNzg8yK+5FTCffZ4PiV0xSKCaQekcRzWHGLWdx tgDLBLsAWL7w1QN3PX4zxsuozv5RHP5xxw1+h7Ke6HDg5/vbmy6mu2P7Z7JC4Keetj GCv1sqJ1XsfaiO78KJ9MM0sDVB1FFKqvhgYXhoCOLIfq7BNf3nUgtbk23tcxonJOAV W9PhRJauc5uaQ== From: Naveen N Rao To: , Subject: [RFC PATCH 3/9] powerpc/ftrace: Remove nops after the call to ftrace_stub Date: Fri, 8 Dec 2023 22:00:42 +0530 Message-ID: <8ee5ec520e37d5523654bb2cd65a17512fb774e2.1702045299.git.naveen@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Florent Revest , Nicholas Piggin , Steven Rostedt , "Aneesh Kumar K.V" , Masami Hiramatsu Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" ftrace_stub is within the same CU, so there is no need for a subsequent nop instruction. Signed-off-by: Naveen N Rao --- arch/powerpc/kernel/trace/ftrace_entry.S | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/powerpc/kernel/trace/ftrace_entry.S b/arch/powerpc/kernel/trace/ftrace_entry.S index 17d1ed3d0b40..244a1c7bb1e8 100644 --- a/arch/powerpc/kernel/trace/ftrace_entry.S +++ b/arch/powerpc/kernel/trace/ftrace_entry.S @@ -162,7 +162,6 @@ _GLOBAL(ftrace_regs_caller) .globl ftrace_regs_call ftrace_regs_call: bl ftrace_stub - nop ftrace_regs_exit 1 _GLOBAL(ftrace_caller) @@ -171,7 +170,6 @@ _GLOBAL(ftrace_caller) .globl ftrace_call ftrace_call: bl ftrace_stub - nop ftrace_regs_exit 0 _GLOBAL(ftrace_stub)