From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sender4-pp-o95.zoho.com (sender4-pp-o95.zoho.com [136.143.188.95]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1174022D4DC; Wed, 18 Feb 2026 17:01:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.95 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771434097; cv=pass; b=JOEjFU44dFXgTk/m8pmc5IJat9T1scw1Ba4PpggfgfG20k8S3fe9DRRF8TFy3KqWeA20+tZ+cLq3haJKYQRpvpfkZLF1QY26lAfUtZxhAQ4ImV71GefNmKKlVrI6j1G3vyPcRx7o6B/wKVuRRFRL4sZo7D5d5GSAJQZDifEr+Qo= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771434097; c=relaxed/simple; bh=sTdy++im/qC8oUNeYR5M8UW9ckOjQ46B3F2Ve632DXM=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=CAp2fFq4XWgirTdrunvst6rQOyDGMUd67nmP8F7tqlbIqQ+I5tGuB2q5f6KDWKDwh+y6zXpGH+Dl21nOJblqYygUw1V1LBJzwPUhqOz5qe9S9f1cUfxv1jhGUNbeSG9SZTOvbqSZ+SZYACI2NnXBasYltpIabNVUM0BvzqyttLk= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=zohomail.com; spf=pass smtp.mailfrom=zohomail.com; dkim=pass (1024-bit key) header.d=zohomail.com header.i=mhklkml@zohomail.com header.b=NbkhTPhY; arc=pass smtp.client-ip=136.143.188.95 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=zohomail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zohomail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=zohomail.com header.i=mhklkml@zohomail.com header.b="NbkhTPhY" ARC-Seal: i=1; a=rsa-sha256; t=1771434090; cv=none; d=zohomail.com; s=zohoarc; b=EK4OVxKG3AsYH7B4dBXDmosxlC933d38X0aycKa9AchM/ZvTplow1m+DJ6zLbgrt67i++EpNIwM00jzzat/MlfTQR/BPRxSuipwnZJAfxrB+K7HRzEF7dtSL5dvg3iCJyhGwJxoTruFQshlQ63uGfWZIZu8Jv4sZXS4FUn0Domg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1771434090; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:MIME-Version:Message-ID:Reply-To:Reply-To:Subject:Subject:To:To:Message-Id; bh=tzCn6q5MVHFSe2xHTeG5eXj5VtgjEipJxD81SGwjMq0=; b=eqOOnFXZXb3jaI2Rc8BZYIX6CaoQOhC5CgO+S864ynUH33Q55t580c777uF16thpQIu695rR9YsJVtFeufyycBUbumQkU3n/mQttYpf9W7lFRefbZDLUYw4htsrPoN7aHiAqwkKCos0wRkxLLbzENegZAfTeHpc8ihN6IYIa1xQ= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=zohomail.com; spf=pass smtp.mailfrom=mhklkml@zohomail.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1771434090; s=zm2022; d=zohomail.com; i=mhklkml@zohomail.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-Id:Message-Id:Reply-To:Reply-To:MIME-Version:Content-Transfer-Encoding:Feedback-ID; bh=tzCn6q5MVHFSe2xHTeG5eXj5VtgjEipJxD81SGwjMq0=; b=NbkhTPhY8wkU11BDdQf3SD6eVw9dGyX39PA9H0i4Ik3zM0snpGYvPwliniOEtlcs Xyqhw/BEd24Vu64hAWFjhwKNGN0s6oKkncOIOi7WTEQLceDF2krAHSu1JKDfauZ6QKt nCCNqHpmqqsXw3DcLyX+pB9cxbA9QwKPER2aX5j4= Received: by mx.zohomail.com with SMTPS id 1771434087255233.25860762231764; Wed, 18 Feb 2026 09:01:27 -0800 (PST) From: Michael Kelley To: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, longli@microsoft.com, linux-hyperv@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 1/1] Drivers: hv: vmbus: Simplify allocation of vmbus_evt Date: Wed, 18 Feb 2026 09:01:21 -0800 Message-Id: <20260218170121.1522-1-mhklkml@zohomail.com> X-Mailer: git-send-email 2.25.1 Reply-To: mhklinux@outlook.com Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Feedback-ID: rr08011227998de60bdd019d5e5c4995560000dfd1893db465250fe270533de613e88a67ba04d54280fee504:zu080112273ec040023ab4392f7f809bd100006a536fd3a6728196e00ad9f5dc4532436fc1879c7ac4665134:rf08011226b5473ae4af57d242f6d2a14a0000c7a7320b729b9ba4c91f23c3afab0381b4a0c6f033d6f1f5:ZohoMail X-ZohoMailClient: External From: Michael Kelley The per-cpu variable vmbus_evt is currently dynamically allocated. It's only 8 bytes, so just allocate it statically to simplify and save a few lines of code. Signed-off-by: Michael Kelley --- drivers/hv/vmbus_drv.c | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-) diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 97dfa529d250..2219ce41b384 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -51,7 +51,7 @@ static struct device *vmbus_root_device; static int hyperv_cpuhp_online; -static long __percpu *vmbus_evt; +static DEFINE_PER_CPU(long, vmbus_evt); /* Values parsed from ACPI DSDT */ int vmbus_irq; @@ -1475,13 +1475,11 @@ static int vmbus_bus_init(void) if (vmbus_irq == -1) { hv_setup_vmbus_handler(vmbus_isr); } else { - vmbus_evt = alloc_percpu(long); ret = request_percpu_irq(vmbus_irq, vmbus_percpu_isr, - "Hyper-V VMbus", vmbus_evt); + "Hyper-V VMbus", &vmbus_evt); if (ret) { pr_err("Can't request Hyper-V VMbus IRQ %d, Err %d", vmbus_irq, ret); - free_percpu(vmbus_evt); goto err_setup; } } @@ -1510,12 +1508,10 @@ static int vmbus_bus_init(void) return 0; err_connect: - if (vmbus_irq == -1) { + if (vmbus_irq == -1) hv_remove_vmbus_handler(); - } else { - free_percpu_irq(vmbus_irq, vmbus_evt); - free_percpu(vmbus_evt); - } + else + free_percpu_irq(vmbus_irq, &vmbus_evt); err_setup: bus_unregister(&hv_bus); return ret; @@ -2981,12 +2977,11 @@ static void __exit vmbus_exit(void) vmbus_connection.conn_state = DISCONNECTED; hv_stimer_global_cleanup(); vmbus_disconnect(); - if (vmbus_irq == -1) { + if (vmbus_irq == -1) hv_remove_vmbus_handler(); - } else { - free_percpu_irq(vmbus_irq, vmbus_evt); - free_percpu(vmbus_evt); - } + else + free_percpu_irq(vmbus_irq, &vmbus_evt); + for_each_online_cpu(cpu) { struct hv_per_cpu_context *hv_cpu = per_cpu_ptr(hv_context.cpu_context, cpu); -- 2.25.1