From patchwork Mon Jun 24 02:45:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 13708865 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 405B779E1 for ; Mon, 24 Jun 2024 02:45:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719197160; cv=none; b=rakbgwT2HZDUffLYxQPzJJvnqbV6+6coCwZ8xVEFHqE1rxq0oYG4h8RxyiIuQqe/pMfA6PDlN4S3Ad4zE6CqRhV9pTS8q2Au6PBLfJKnzUv0TP8WgInygQAjfxkJSrJZRQsUxbsA9iEChF5j6yjGRqLJyjBxR4Y4qt/VZhR0BLI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719197160; c=relaxed/simple; bh=lHMBMN1aOOtIjA3goGFM8RsDgSslvqlT0CFKvQne9HI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=D/dvqJKRl2S2Le1bLJjtXCWadq3n1w7G+MwAvK865YNOMbzfaEhjuyIPlsP8bikaaH4piuZqSukMtR9TXbY3ZyEckygzdjtM5dS7kahb7oYP9mLYsthIHybcm4EpUbi/9bc+uLi8t2Y1mfqNhW1i7atj+BSOc7UYwBrYkfQDrcE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=BEcj56sl; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="BEcj56sl" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1719197158; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=u8ma79Lf12qsH/HRx/hyZ2J2F2i4kk451VRlEuUsJkU=; b=BEcj56slDqNr1nCUH8/7JN0dpZEe6TiuL0H5GUSVoRnYgZpWeKinYZj7MK5Okt4TRh9mDL mhzcVUBP05JADXCUK55FYyLK+N4byXIUbAckgh4HPc+hTmUl3knQQKGGTop2M5IW5w6eRF y2ILYogwQJKGgUz11Lay+RrQSN4NJ8U= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-319-EpZqdHUWMp-q_eNjjqwztA-1; Sun, 23 Jun 2024 22:45:54 -0400 X-MC-Unique: EpZqdHUWMp-q_eNjjqwztA-1 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (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 mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 5198619560BF; Mon, 24 Jun 2024 02:45:50 +0000 (UTC) Received: from localhost.localdomain (unknown [10.72.112.150]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 961B33000218; Mon, 24 Jun 2024 02:45:43 +0000 (UTC) From: Jason Wang To: mst@redhat.com, jasowang@redhat.com Cc: xuanzhuo@linux.alibaba.com, eperezma@redhat.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, virtualization@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, venkat.x.venkatsubra@oracle.com, gia-khanh.nguyen@oracle.com Subject: [PATCH V2 2/3] virtio: export virtio_config_{enable|disable}() Date: Mon, 24 Jun 2024 10:45:22 +0800 Message-ID: <20240624024523.34272-3-jasowang@redhat.com> In-Reply-To: <20240624024523.34272-1-jasowang@redhat.com> References: <20240624024523.34272-1-jasowang@redhat.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 This patch exports virtio_config_enable() and virtio_config_disable() for drivers to disable config callbacks. Signed-off-by: Jason Wang --- drivers/virtio/virtio.c | 6 ++++-- include/linux/virtio.h | 3 +++ 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index d3aa74b8ae5d..a4622a62aac3 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -143,14 +143,15 @@ void virtio_config_changed(struct virtio_device *dev) } EXPORT_SYMBOL_GPL(virtio_config_changed); -static void virtio_config_disable(struct virtio_device *dev) +void virtio_config_disable(struct virtio_device *dev) { spin_lock_irq(&dev->config_lock); --dev->config_enabled; spin_unlock_irq(&dev->config_lock); } +EXPORT_SYMBOL_GPL(virtio_config_disable); -static void virtio_config_enable(struct virtio_device *dev) +void virtio_config_enable(struct virtio_device *dev) { spin_lock_irq(&dev->config_lock); @@ -165,6 +166,7 @@ static void virtio_config_enable(struct virtio_device *dev) spin_unlock_irq(&dev->config_lock); } +EXPORT_SYMBOL_GPL(virtio_config_enable); void virtio_add_status(struct virtio_device *dev, unsigned int status) { diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 4496f9ba5d82..bc5e408582c9 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -163,6 +163,9 @@ void __virtqueue_break(struct virtqueue *_vq); void __virtqueue_unbreak(struct virtqueue *_vq); void virtio_config_changed(struct virtio_device *dev); + +void virtio_config_disable(struct virtio_device *dev); +void virtio_config_enable(struct virtio_device *dev); #ifdef CONFIG_PM_SLEEP int virtio_device_freeze(struct virtio_device *dev); int virtio_device_restore(struct virtio_device *dev);