[PATCH V2 2/3] virtio: export virtio_config_{enable|disable}()
From: Jason Wang <hidden>
Date: 2024-06-24 02:45:56
Also in:
lkml, virtualization
Subsystem:
the rest, virtio core · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
This patch exports virtio_config_enable() and virtio_config_disable() for drivers to disable config callbacks. Signed-off-by: Jason Wang <redacted> --- 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);
--
2.31.1