mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-15 21:30:43 +00:00
VFIO updates for v5.2-rc1
- Improve dev_printk() usage (Bjorn Helgaas)
- Fix issue with blocking in !TASK_RUNNING state while waiting for
userspace to release devices (Farhan Ali)
- Fix error path cleanup in nvlink setup (Greg Kurz)
- mdev-core cleanups and fixes in preparation for more use cases
(Parav Pandit)
- Cornelia has volunteered as an official vfio reviewer (Cornelia Huck)
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Merge tag 'vfio-v5.2-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Improve dev_printk() usage (Bjorn Helgaas)
- Fix issue with blocking in !TASK_RUNNING state while waiting for
userspace to release devices (Farhan Ali)
- Fix error path cleanup in nvlink setup (Greg Kurz)
- mdev-core cleanups and fixes in preparation for more use cases (Parav
Pandit)
- Cornelia has volunteered as an official vfio reviewer (Cornelia Huck)
* tag 'vfio-v5.2-rc1' of git://github.com/awilliam/linux-vfio:
vfio: Add Cornelia Huck as reviewer
vfio/mdev: Avoid inline get and put parent helpers
vfio/mdev: Fix aborting mdev child device removal if one fails
vfio/mdev: Follow correct remove sequence
vfio/mdev: Avoid masking error code to EBUSY
vfio/mdev: Drop redundant extern for exported symbols
vfio/mdev: Removed unused kref
vfio/mdev: Avoid release parent reference during error path
vfio-pci/nvlink2: Fix potential VMA leak
vfio: Fix WARNING "do not call blocking ops when !TASK_RUNNING"
vfio: Use dev_printk() when possible
This commit is contained in:
Linus Torvalds
commit
6fe567df04
@ -16557,6 +16557,7 @@ F: fs/fat/
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VFIO DRIVER
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M: Alex Williamson <alex.williamson@redhat.com>
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R: Cornelia Huck <cohuck@redhat.com>
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L: kvm@vger.kernel.org
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T: git git://github.com/awilliam/linux-vfio.git
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S: Maintained
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@ -88,7 +88,7 @@ static void mdev_release_parent(struct kref *kref)
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put_device(dev);
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}
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static inline struct mdev_parent *mdev_get_parent(struct mdev_parent *parent)
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static struct mdev_parent *mdev_get_parent(struct mdev_parent *parent)
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{
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if (parent)
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kref_get(&parent->ref);
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@ -96,7 +96,7 @@ static inline struct mdev_parent *mdev_get_parent(struct mdev_parent *parent)
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return parent;
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}
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static inline void mdev_put_parent(struct mdev_parent *parent)
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static void mdev_put_parent(struct mdev_parent *parent)
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{
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if (parent)
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kref_put(&parent->ref, mdev_release_parent);
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@ -141,7 +141,7 @@ static int mdev_device_remove_ops(struct mdev_device *mdev, bool force_remove)
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*/
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ret = parent->ops->remove(mdev);
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if (ret && !force_remove)
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return -EBUSY;
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return ret;
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sysfs_remove_groups(&mdev->dev.kobj, parent->ops->mdev_attr_groups);
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return 0;
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@ -149,10 +149,10 @@ static int mdev_device_remove_ops(struct mdev_device *mdev, bool force_remove)
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static int mdev_device_remove_cb(struct device *dev, void *data)
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{
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if (!dev_is_mdev(dev))
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return 0;
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if (dev_is_mdev(dev))
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mdev_device_remove(dev, true);
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return mdev_device_remove(dev, data ? *(bool *)data : true);
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return 0;
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}
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/*
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@ -181,6 +181,7 @@ int mdev_register_device(struct device *dev, const struct mdev_parent_ops *ops)
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/* Check for duplicate */
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parent = __find_parent_device(dev);
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if (parent) {
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parent = NULL;
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ret = -EEXIST;
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goto add_dev_err;
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}
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@ -239,7 +240,6 @@ EXPORT_SYMBOL(mdev_register_device);
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void mdev_unregister_device(struct device *dev)
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{
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struct mdev_parent *parent;
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bool force_remove = true;
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mutex_lock(&parent_list_lock);
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parent = __find_parent_device(dev);
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@ -253,8 +253,7 @@ void mdev_unregister_device(struct device *dev)
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list_del(&parent->next);
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class_compat_remove_link(mdev_bus_compat_class, dev, NULL);
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device_for_each_child(dev, (void *)&force_remove,
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mdev_device_remove_cb);
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device_for_each_child(dev, NULL, mdev_device_remove_cb);
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parent_remove_sysfs_files(parent);
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@ -310,7 +309,6 @@ int mdev_device_create(struct kobject *kobj,
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mutex_unlock(&mdev_list_lock);
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mdev->parent = parent;
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kref_init(&mdev->ref);
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mdev->dev.parent = dev;
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mdev->dev.bus = &mdev_bus_type;
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@ -30,7 +30,6 @@ struct mdev_device {
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struct mdev_parent *parent;
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guid_t uuid;
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void *driver_data;
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struct kref ref;
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struct list_head next;
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struct kobject *type_kobj;
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bool active;
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@ -280,7 +280,7 @@ type_link_failed:
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void mdev_remove_sysfs_files(struct device *dev, struct mdev_type *type)
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{
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sysfs_remove_files(&dev->kobj, mdev_device_attrs);
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sysfs_remove_link(&dev->kobj, "mdev_type");
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sysfs_remove_link(type->devices_kobj, dev_name(dev));
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sysfs_remove_files(&dev->kobj, mdev_device_attrs);
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}
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@ -12,6 +12,7 @@
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#define dev_fmt pr_fmt
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#include <linux/device.h>
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#include <linux/eventfd.h>
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@ -287,12 +288,11 @@ static int vfio_pci_enable(struct vfio_pci_device *vdev)
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pci_save_state(pdev);
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vdev->pci_saved_state = pci_store_saved_state(pdev);
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if (!vdev->pci_saved_state)
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pr_debug("%s: Couldn't store %s saved state\n",
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__func__, dev_name(&pdev->dev));
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pci_dbg(pdev, "%s: Couldn't store saved state\n", __func__);
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if (likely(!nointxmask)) {
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if (vfio_pci_nointx(pdev)) {
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dev_info(&pdev->dev, "Masking broken INTx support\n");
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pci_info(pdev, "Masking broken INTx support\n");
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vdev->nointx = true;
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pci_intx(pdev, 0);
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} else
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@ -336,8 +336,7 @@ static int vfio_pci_enable(struct vfio_pci_device *vdev)
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IS_ENABLED(CONFIG_VFIO_PCI_IGD)) {
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ret = vfio_pci_igd_init(vdev);
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if (ret) {
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dev_warn(&vdev->pdev->dev,
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"Failed to setup Intel IGD regions\n");
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pci_warn(pdev, "Failed to setup Intel IGD regions\n");
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goto disable_exit;
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}
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}
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@ -346,8 +345,7 @@ static int vfio_pci_enable(struct vfio_pci_device *vdev)
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IS_ENABLED(CONFIG_VFIO_PCI_NVLINK2)) {
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ret = vfio_pci_nvdia_v100_nvlink2_init(vdev);
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if (ret && ret != -ENODEV) {
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dev_warn(&vdev->pdev->dev,
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"Failed to setup NVIDIA NV2 RAM region\n");
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pci_warn(pdev, "Failed to setup NVIDIA NV2 RAM region\n");
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goto disable_exit;
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}
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}
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@ -356,8 +354,7 @@ static int vfio_pci_enable(struct vfio_pci_device *vdev)
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IS_ENABLED(CONFIG_VFIO_PCI_NVLINK2)) {
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ret = vfio_pci_ibm_npu2_init(vdev);
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if (ret && ret != -ENODEV) {
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dev_warn(&vdev->pdev->dev,
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"Failed to setup NVIDIA NV2 ATSD region\n");
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pci_warn(pdev, "Failed to setup NVIDIA NV2 ATSD region\n");
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goto disable_exit;
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}
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}
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@ -429,8 +426,7 @@ static void vfio_pci_disable(struct vfio_pci_device *vdev)
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* is just busy work.
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*/
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if (pci_load_and_free_saved_state(pdev, &vdev->pci_saved_state)) {
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pr_info("%s: Couldn't reload %s saved state\n",
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__func__, dev_name(&pdev->dev));
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pci_info(pdev, "%s: Couldn't reload saved state\n", __func__);
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if (!vdev->reset_works)
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goto out;
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@ -1255,17 +1251,18 @@ static int vfio_pci_mmap(void *device_data, struct vm_area_struct *vma)
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static void vfio_pci_request(void *device_data, unsigned int count)
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{
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struct vfio_pci_device *vdev = device_data;
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struct pci_dev *pdev = vdev->pdev;
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mutex_lock(&vdev->igate);
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if (vdev->req_trigger) {
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if (!(count % 10))
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dev_notice_ratelimited(&vdev->pdev->dev,
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pci_notice_ratelimited(pdev,
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"Relaying device request to user (#%u)\n",
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count);
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eventfd_signal(vdev->req_trigger, 1);
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} else if (count == 0) {
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dev_warn(&vdev->pdev->dev,
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pci_warn(pdev,
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"No device request channel registered, blocked until released by user\n");
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}
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@ -412,8 +412,7 @@ static void vfio_bar_restore(struct vfio_pci_device *vdev)
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if (pdev->is_virtfn)
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return;
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pr_info("%s: %s reset recovery - restoring bars\n",
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__func__, dev_name(&pdev->dev));
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pci_info(pdev, "%s: reset recovery - restoring BARs\n", __func__);
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for (i = PCI_BASE_ADDRESS_0; i <= PCI_BASE_ADDRESS_5; i += 4, rbar++)
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pci_user_write_config_dword(pdev, i, *rbar);
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@ -1298,8 +1297,8 @@ static int vfio_cap_len(struct vfio_pci_device *vdev, u8 cap, u8 pos)
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else
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return PCI_SATA_SIZEOF_SHORT;
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default:
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pr_warn("%s: %s unknown length for pci cap 0x%x@0x%x\n",
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dev_name(&pdev->dev), __func__, cap, pos);
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pci_warn(pdev, "%s: unknown length for PCI cap %#x@%#x\n",
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__func__, cap, pos);
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}
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return 0;
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@ -1372,8 +1371,8 @@ static int vfio_ext_cap_len(struct vfio_pci_device *vdev, u16 ecap, u16 epos)
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}
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return PCI_TPH_BASE_SIZEOF;
|
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default:
|
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pr_warn("%s: %s unknown length for pci ecap 0x%x@0x%x\n",
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||||
dev_name(&pdev->dev), __func__, ecap, epos);
|
||||
pci_warn(pdev, "%s: unknown length for PCI ecap %#x@%#x\n",
|
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__func__, ecap, epos);
|
||||
}
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|
||||
return 0;
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@ -1474,8 +1473,8 @@ static int vfio_cap_init(struct vfio_pci_device *vdev)
|
||||
}
|
||||
|
||||
if (!len) {
|
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pr_info("%s: %s hiding cap 0x%x\n",
|
||||
__func__, dev_name(&pdev->dev), cap);
|
||||
pci_info(pdev, "%s: hiding cap %#x@%#x\n", __func__,
|
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cap, pos);
|
||||
*prev = next;
|
||||
pos = next;
|
||||
continue;
|
||||
@ -1486,9 +1485,8 @@ static int vfio_cap_init(struct vfio_pci_device *vdev)
|
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if (likely(map[pos + i] == PCI_CAP_ID_INVALID))
|
||||
continue;
|
||||
|
||||
pr_warn("%s: %s pci config conflict @0x%x, was cap 0x%x now cap 0x%x\n",
|
||||
__func__, dev_name(&pdev->dev),
|
||||
pos + i, map[pos + i], cap);
|
||||
pci_warn(pdev, "%s: PCI config conflict @%#x, was cap %#x now cap %#x\n",
|
||||
__func__, pos + i, map[pos + i], cap);
|
||||
}
|
||||
|
||||
BUILD_BUG_ON(PCI_CAP_ID_MAX >= PCI_CAP_ID_INVALID_VIRT);
|
||||
@ -1549,8 +1547,8 @@ static int vfio_ecap_init(struct vfio_pci_device *vdev)
|
||||
}
|
||||
|
||||
if (!len) {
|
||||
pr_info("%s: %s hiding ecap 0x%x@0x%x\n",
|
||||
__func__, dev_name(&pdev->dev), ecap, epos);
|
||||
pci_info(pdev, "%s: hiding ecap %#x@%#x\n",
|
||||
__func__, ecap, epos);
|
||||
|
||||
/* If not the first in the chain, we can skip over it */
|
||||
if (prev) {
|
||||
@ -1572,9 +1570,8 @@ static int vfio_ecap_init(struct vfio_pci_device *vdev)
|
||||
if (likely(map[epos + i] == PCI_CAP_ID_INVALID))
|
||||
continue;
|
||||
|
||||
pr_warn("%s: %s pci config conflict @0x%x, was ecap 0x%x now ecap 0x%x\n",
|
||||
__func__, dev_name(&pdev->dev),
|
||||
epos + i, map[epos + i], ecap);
|
||||
pci_warn(pdev, "%s: PCI config conflict @%#x, was ecap %#x now ecap %#x\n",
|
||||
__func__, epos + i, map[epos + i], ecap);
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -472,6 +472,8 @@ int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev)
|
||||
return 0;
|
||||
|
||||
free_exit:
|
||||
if (data->base)
|
||||
memunmap(data->base);
|
||||
kfree(data);
|
||||
|
||||
return ret;
|
||||
|
||||
@ -89,7 +89,8 @@ static int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev)
|
||||
} while ((pcs_value & MDIO_CTRL1_RESET) && --count);
|
||||
|
||||
if (pcs_value & MDIO_CTRL1_RESET)
|
||||
pr_warn("%s XGBE PHY reset timeout\n", __func__);
|
||||
dev_warn(vdev->device, "%s: XGBE PHY reset timeout\n",
|
||||
__func__);
|
||||
|
||||
/* disable auto-negotiation */
|
||||
value = xmdio_read(xpcs_regs->ioaddr, MDIO_MMD_AN, MDIO_CTRL1);
|
||||
@ -114,7 +115,7 @@ static int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev)
|
||||
usleep_range(500, 600);
|
||||
|
||||
if (!count)
|
||||
pr_warn("%s MAC SW reset failed\n", __func__);
|
||||
dev_warn(vdev->device, "%s: MAC SW reset failed\n", __func__);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -12,6 +12,8 @@
|
||||
* GNU General Public License for more details.
|
||||
*/
|
||||
|
||||
#define dev_fmt(fmt) "VFIO: " fmt
|
||||
|
||||
#include <linux/device.h>
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/iommu.h>
|
||||
@ -63,7 +65,7 @@ static int vfio_platform_acpi_probe(struct vfio_platform_device *vdev,
|
||||
|
||||
adev = ACPI_COMPANION(dev);
|
||||
if (!adev) {
|
||||
pr_err("VFIO: ACPI companion device not found for %s\n",
|
||||
dev_err(dev, "ACPI companion device not found for %s\n",
|
||||
vdev->name);
|
||||
return -ENODEV;
|
||||
}
|
||||
@ -638,7 +640,7 @@ static int vfio_platform_of_probe(struct vfio_platform_device *vdev,
|
||||
ret = device_property_read_string(dev, "compatible",
|
||||
&vdev->compat);
|
||||
if (ret)
|
||||
pr_err("VFIO: Cannot retrieve compat for %s\n", vdev->name);
|
||||
dev_err(dev, "Cannot retrieve compat for %s\n", vdev->name);
|
||||
|
||||
return ret;
|
||||
}
|
||||
@ -680,14 +682,14 @@ int vfio_platform_probe_common(struct vfio_platform_device *vdev,
|
||||
|
||||
ret = vfio_platform_get_reset(vdev);
|
||||
if (ret && vdev->reset_required) {
|
||||
pr_err("VFIO: No reset function found for device %s\n",
|
||||
vdev->name);
|
||||
dev_err(dev, "No reset function found for device %s\n",
|
||||
vdev->name);
|
||||
return ret;
|
||||
}
|
||||
|
||||
group = vfio_iommu_group_get(dev);
|
||||
if (!group) {
|
||||
pr_err("VFIO: No IOMMU group for device %s\n", vdev->name);
|
||||
dev_err(dev, "No IOMMU group for device %s\n", vdev->name);
|
||||
ret = -EINVAL;
|
||||
goto put_reset;
|
||||
}
|
||||
|
||||
@ -34,6 +34,7 @@
|
||||
#include <linux/uaccess.h>
|
||||
#include <linux/vfio.h>
|
||||
#include <linux/wait.h>
|
||||
#include <linux/sched/signal.h>
|
||||
|
||||
#define DRIVER_VERSION "0.3"
|
||||
#define DRIVER_AUTHOR "Alex Williamson <alex.williamson@redhat.com>"
|
||||
@ -704,8 +705,8 @@ static int vfio_group_nb_add_dev(struct vfio_group *group, struct device *dev)
|
||||
return 0;
|
||||
|
||||
/* TODO Prevent device auto probing */
|
||||
WARN(1, "Device %s added to live group %d!\n", dev_name(dev),
|
||||
iommu_group_id(group->iommu_group));
|
||||
dev_WARN(dev, "Device added to live group %d!\n",
|
||||
iommu_group_id(group->iommu_group));
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -748,25 +749,22 @@ static int vfio_iommu_group_notifier(struct notifier_block *nb,
|
||||
*/
|
||||
break;
|
||||
case IOMMU_GROUP_NOTIFY_BIND_DRIVER:
|
||||
pr_debug("%s: Device %s, group %d binding to driver\n",
|
||||
__func__, dev_name(dev),
|
||||
iommu_group_id(group->iommu_group));
|
||||
dev_dbg(dev, "%s: group %d binding to driver\n", __func__,
|
||||
iommu_group_id(group->iommu_group));
|
||||
break;
|
||||
case IOMMU_GROUP_NOTIFY_BOUND_DRIVER:
|
||||
pr_debug("%s: Device %s, group %d bound to driver %s\n",
|
||||
__func__, dev_name(dev),
|
||||
iommu_group_id(group->iommu_group), dev->driver->name);
|
||||
dev_dbg(dev, "%s: group %d bound to driver %s\n", __func__,
|
||||
iommu_group_id(group->iommu_group), dev->driver->name);
|
||||
BUG_ON(vfio_group_nb_verify(group, dev));
|
||||
break;
|
||||
case IOMMU_GROUP_NOTIFY_UNBIND_DRIVER:
|
||||
pr_debug("%s: Device %s, group %d unbinding from driver %s\n",
|
||||
__func__, dev_name(dev),
|
||||
iommu_group_id(group->iommu_group), dev->driver->name);
|
||||
dev_dbg(dev, "%s: group %d unbinding from driver %s\n",
|
||||
__func__, iommu_group_id(group->iommu_group),
|
||||
dev->driver->name);
|
||||
break;
|
||||
case IOMMU_GROUP_NOTIFY_UNBOUND_DRIVER:
|
||||
pr_debug("%s: Device %s, group %d unbound from driver\n",
|
||||
__func__, dev_name(dev),
|
||||
iommu_group_id(group->iommu_group));
|
||||
dev_dbg(dev, "%s: group %d unbound from driver\n", __func__,
|
||||
iommu_group_id(group->iommu_group));
|
||||
/*
|
||||
* XXX An unbound device in a live group is ok, but we'd
|
||||
* really like to avoid the above BUG_ON by preventing other
|
||||
@ -830,8 +828,8 @@ int vfio_add_group_dev(struct device *dev,
|
||||
|
||||
device = vfio_group_get_device(group, dev);
|
||||
if (device) {
|
||||
WARN(1, "Device %s already exists on group %d\n",
|
||||
dev_name(dev), iommu_group_id(iommu_group));
|
||||
dev_WARN(dev, "Device already exists on group %d\n",
|
||||
iommu_group_id(iommu_group));
|
||||
vfio_device_put(device);
|
||||
vfio_group_put(group);
|
||||
return -EBUSY;
|
||||
@ -904,30 +902,17 @@ void *vfio_device_data(struct vfio_device *device)
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(vfio_device_data);
|
||||
|
||||
/* Given a referenced group, check if it contains the device */
|
||||
static bool vfio_dev_present(struct vfio_group *group, struct device *dev)
|
||||
{
|
||||
struct vfio_device *device;
|
||||
|
||||
device = vfio_group_get_device(group, dev);
|
||||
if (!device)
|
||||
return false;
|
||||
|
||||
vfio_device_put(device);
|
||||
return true;
|
||||
}
|
||||
|
||||
/*
|
||||
* Decrement the device reference count and wait for the device to be
|
||||
* removed. Open file descriptors for the device... */
|
||||
void *vfio_del_group_dev(struct device *dev)
|
||||
{
|
||||
DEFINE_WAIT_FUNC(wait, woken_wake_function);
|
||||
struct vfio_device *device = dev_get_drvdata(dev);
|
||||
struct vfio_group *group = device->group;
|
||||
void *device_data = device->device_data;
|
||||
struct vfio_unbound_dev *unbound;
|
||||
unsigned int i = 0;
|
||||
long ret;
|
||||
bool interrupted = false;
|
||||
|
||||
/*
|
||||
@ -964,6 +949,8 @@ void *vfio_del_group_dev(struct device *dev)
|
||||
* interval with counter to allow the driver to take escalating
|
||||
* measures to release the device if it has the ability to do so.
|
||||
*/
|
||||
add_wait_queue(&vfio.release_q, &wait);
|
||||
|
||||
do {
|
||||
device = vfio_group_get_device(group, dev);
|
||||
if (!device)
|
||||
@ -975,12 +962,10 @@ void *vfio_del_group_dev(struct device *dev)
|
||||
vfio_device_put(device);
|
||||
|
||||
if (interrupted) {
|
||||
ret = wait_event_timeout(vfio.release_q,
|
||||
!vfio_dev_present(group, dev), HZ * 10);
|
||||
wait_woken(&wait, TASK_UNINTERRUPTIBLE, HZ * 10);
|
||||
} else {
|
||||
ret = wait_event_interruptible_timeout(vfio.release_q,
|
||||
!vfio_dev_present(group, dev), HZ * 10);
|
||||
if (ret == -ERESTARTSYS) {
|
||||
wait_woken(&wait, TASK_INTERRUPTIBLE, HZ * 10);
|
||||
if (signal_pending(current)) {
|
||||
interrupted = true;
|
||||
dev_warn(dev,
|
||||
"Device is currently in use, task"
|
||||
@ -989,8 +974,10 @@ void *vfio_del_group_dev(struct device *dev)
|
||||
current->comm, task_pid_nr(current));
|
||||
}
|
||||
}
|
||||
} while (ret <= 0);
|
||||
|
||||
} while (1);
|
||||
|
||||
remove_wait_queue(&vfio.release_q, &wait);
|
||||
/*
|
||||
* In order to support multiple devices per group, devices can be
|
||||
* plucked from the group while other devices in the group are still
|
||||
|
||||
@ -118,21 +118,20 @@ struct mdev_driver {
|
||||
|
||||
#define to_mdev_driver(drv) container_of(drv, struct mdev_driver, driver)
|
||||
|
||||
extern void *mdev_get_drvdata(struct mdev_device *mdev);
|
||||
extern void mdev_set_drvdata(struct mdev_device *mdev, void *data);
|
||||
extern const guid_t *mdev_uuid(struct mdev_device *mdev);
|
||||
void *mdev_get_drvdata(struct mdev_device *mdev);
|
||||
void mdev_set_drvdata(struct mdev_device *mdev, void *data);
|
||||
const guid_t *mdev_uuid(struct mdev_device *mdev);
|
||||
|
||||
extern struct bus_type mdev_bus_type;
|
||||
|
||||
extern int mdev_register_device(struct device *dev,
|
||||
const struct mdev_parent_ops *ops);
|
||||
extern void mdev_unregister_device(struct device *dev);
|
||||
int mdev_register_device(struct device *dev, const struct mdev_parent_ops *ops);
|
||||
void mdev_unregister_device(struct device *dev);
|
||||
|
||||
extern int mdev_register_driver(struct mdev_driver *drv, struct module *owner);
|
||||
extern void mdev_unregister_driver(struct mdev_driver *drv);
|
||||
int mdev_register_driver(struct mdev_driver *drv, struct module *owner);
|
||||
void mdev_unregister_driver(struct mdev_driver *drv);
|
||||
|
||||
extern struct device *mdev_parent_dev(struct mdev_device *mdev);
|
||||
extern struct device *mdev_dev(struct mdev_device *mdev);
|
||||
extern struct mdev_device *mdev_from_dev(struct device *dev);
|
||||
struct device *mdev_parent_dev(struct mdev_device *mdev);
|
||||
struct device *mdev_dev(struct mdev_device *mdev);
|
||||
struct mdev_device *mdev_from_dev(struct device *dev);
|
||||
|
||||
#endif /* MDEV_H */
|
||||
|
||||
@ -2363,4 +2363,7 @@ void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type);
|
||||
#define pci_info(pdev, fmt, arg...) dev_info(&(pdev)->dev, fmt, ##arg)
|
||||
#define pci_dbg(pdev, fmt, arg...) dev_dbg(&(pdev)->dev, fmt, ##arg)
|
||||
|
||||
#define pci_notice_ratelimited(pdev, fmt, arg...) \
|
||||
dev_notice_ratelimited(&(pdev)->dev, fmt, ##arg)
|
||||
|
||||
#endif /* LINUX_PCI_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user