From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFC6DC4743C for ; Wed, 23 Jun 2021 12:25:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ADA4961076 for ; Wed, 23 Jun 2021 12:25:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230291AbhFWM1V (ORCPT ); Wed, 23 Jun 2021 08:27:21 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:36836 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231433AbhFWM0h (ORCPT ); Wed, 23 Jun 2021 08:26:37 -0400 Message-Id: <20210623121454.816581630@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1624451058; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=+G6xD9wXWd7M2o920rwdj6rEQzPEdPKXtNICi00d1cM=; b=m4JtwUSI1AS+nSWFVaTjaBQzDsEomN0LOQaiK/G57ytMcA85v7XrQ9AZ8webt62j1duySp rYloEdukcHuwPO2xdNAqV0YPqkoMhAUeLAlM7iS/MpJRbhmZAM2vKhFow6TfNx7BnHejCP 3x1seW7Z7hMeBhyZsaA6M1XtlZT1/Jkc/NNUTcja5vwovf4Of7NgsX1N9LOC9q+WrSvX9C 5ktF4VLSRP6JKyS8JcGxf1hXpRxAcyGhDRqTXd/1coTlJ2AvIKrIzytM4+wlkW+aaFBENx uuJGQVP7soUM/OrZw7vEztmg2AnOzJjGaOONNyC4BcKSxJiaflmq/tu8IOiqRg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1624451058; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=+G6xD9wXWd7M2o920rwdj6rEQzPEdPKXtNICi00d1cM=; b=syCXvfnTwiCkkSamfB9v1SWR6YH872XocxrztdCu7HOfJhDEOXSaBbuk006BXfxCk8NMWy ThhQzJpG7Nl+crCQ== Date: Wed, 23 Jun 2021 14:02:02 +0200 From: Thomas Gleixner To: LKML Cc: Andy Lutomirski , Dave Hansen , Fenghua Yu , Tony Luck , Yu-cheng Yu , Sebastian Andrzej Siewior , Borislav Petkov , Peter Zijlstra , Kan Liang , "Chang Seok Bae" , Megha Dey , Oliver Sang Subject: [patch V4 35/65] x86/fpu: Rename initstate copy functions References: <20210623120127.327154589@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-transfer-encoding: 8-bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Again this not a copy. It's restoring register state from kernel memory. Signed-off-by: Thomas Gleixner --- arch/x86/kernel/fpu/core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/arch/x86/kernel/fpu/core.c +++ b/arch/x86/kernel/fpu/core.c @@ -303,7 +303,7 @@ void fpu__drop(struct fpu *fpu) * Clear FPU registers by setting them up from the init fpstate. * Caller must do fpregs_[un]lock() around it. */ -static inline void copy_init_fpstate_to_fpregs(u64 features_mask) +static inline void restore_fpregs_from_init_fpstate(u64 features_mask) { if (use_xsave()) os_xrstor(&init_fpstate.xsave, features_mask); @@ -338,9 +338,9 @@ static void fpu__clear(struct fpu *fpu, if (!fpregs_state_valid(fpu, smp_processor_id()) && xfeatures_mask_supervisor()) os_xrstor(&fpu->state.xsave, xfeatures_mask_supervisor()); - copy_init_fpstate_to_fpregs(xfeatures_mask_user()); + restore_fpregs_from_init_fpstate(xfeatures_mask_user()); } else { - copy_init_fpstate_to_fpregs(xfeatures_mask_all); + restore_fpregs_from_init_fpstate(xfeatures_mask_all); } fpregs_mark_activate();