From patchwork Thu Sep 15 08:38:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zeng Heng X-Patchwork-Id: 12977046 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A765ECAAD3 for ; Thu, 15 Sep 2022 08:31:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229641AbiIOIbc (ORCPT ); Thu, 15 Sep 2022 04:31:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45970 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229452AbiIOIbb (ORCPT ); Thu, 15 Sep 2022 04:31:31 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ADF6689CFD; Thu, 15 Sep 2022 01:31:29 -0700 (PDT) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4MSr0C0z5nzNmJX; Thu, 15 Sep 2022 16:26:51 +0800 (CST) Received: from huawei.com (10.175.103.91) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 15 Sep 2022 16:31:27 +0800 From: Zeng Heng To: , , , , , , , , CC: , , Subject: [PATCH -next] rcu: remove unused 'cpu' in rcu_virt_note_context_switch Date: Thu, 15 Sep 2022 16:38:24 +0800 Message-ID: <20220915083824.766645-1-zengheng4@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpemm500022.china.huawei.com (7.185.36.162) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org Remove unused function argument, and there is no logic changes. Signed-off-by: Zeng Heng Acked-by: Mukesh Ojha --- include/linux/kvm_host.h | 2 +- include/linux/rcutiny.h | 2 +- include/linux/rcutree.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index f4519d3689e1..9cf0c503daf5 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -417,7 +417,7 @@ static __always_inline void guest_context_enter_irqoff(void) */ if (!context_tracking_guest_enter()) { instrumentation_begin(); - rcu_virt_note_context_switch(smp_processor_id()); + rcu_virt_note_context_switch(); instrumentation_end(); } } diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h index 768196a5f39d..9bc025aa79a3 100644 --- a/include/linux/rcutiny.h +++ b/include/linux/rcutiny.h @@ -142,7 +142,7 @@ static inline int rcu_needs_cpu(void) * Take advantage of the fact that there is only one CPU, which * allows us to ignore virtualization-based context switches. */ -static inline void rcu_virt_note_context_switch(int cpu) { } +static inline void rcu_virt_note_context_switch(void) { } static inline void rcu_cpu_stall_reset(void) { } static inline int rcu_jiffies_till_stall_check(void) { return 21 * HZ; } static inline void rcu_irq_exit_check_preempt(void) { } diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h index 5efb51486e8a..70795386b9ff 100644 --- a/include/linux/rcutree.h +++ b/include/linux/rcutree.h @@ -27,7 +27,7 @@ void rcu_cpu_stall_reset(void); * wrapper around rcu_note_context_switch(), which allows TINY_RCU * to save a few bytes. The caller must have disabled interrupts. */ -static inline void rcu_virt_note_context_switch(int cpu) +static inline void rcu_virt_note_context_switch(void) { rcu_note_context_switch(false); }