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hyperv-fixes for 5.17-rc5

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Merge tag 'hyperv-fixes-signed-20220215' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv fixes from Wei Liu:

 - Rework use of DMA_BIT_MASK in vmbus to work around a clang bug
   (Michael Kelley)

 - Fix NUMA topology (Long Li)

 - Fix a memory leak in vmbus (Miaoqian Lin)

 - One minor clean-up patch (Cai Huoqing)

* tag 'hyperv-fixes-signed-20220215' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  Drivers: hv: utils: Make use of the helper macro LIST_HEAD()
  Drivers: hv: vmbus: Rework use of DMA_BIT_MASK(64)
  Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj
  PCI: hv: Fix NUMA node assignment when kernel boots with custom NUMA topology
This commit is contained in:
Linus Torvalds 2022-02-15 09:05:01 -08:00
commit c24449b321
4 changed files with 19 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/hv/hv_utils_transport.c
View File

@ -13,7 +13,7 @@
#include "hv_utils_transport.h"
static DEFINE_SPINLOCK(hvt_list_lock);
static struct list_head hvt_list = LIST_HEAD_INIT(hvt_list);
static LIST_HEAD(hvt_list);
static void hvt_reset(struct hvutil_transport *hvt)
{

9
drivers/hv/vmbus_drv.c
View File

@ -2028,8 +2028,10 @@ int vmbus_add_channel_kobj(struct hv_device *dev, struct vmbus_channel *channel)
kobj->kset = dev->channels_kset;
ret = kobject_init_and_add(kobj, &vmbus_chan_ktype, NULL,
"%u", relid);
if (ret)
if (ret) {
kobject_put(kobj);
return ret;
}
ret = sysfs_create_group(kobj, &vmbus_chan_group);
@ -2038,6 +2040,7 @@ int vmbus_add_channel_kobj(struct hv_device *dev, struct vmbus_channel *channel)
* The calling functions' error handling paths will cleanup the
* empty channel directory.
*/
kobject_put(kobj);
dev_err(device, "Unable to set up channel sysfs files\n");
return ret;
}
@ -2079,7 +2082,6 @@ struct hv_device *vmbus_device_create(const guid_t *type,
return child_device_obj;
}
static u64 vmbus_dma_mask = DMA_BIT_MASK(64);
/*
* vmbus_device_register - Register the child device
*/
@ -2120,8 +2122,9 @@ int vmbus_device_register(struct hv_device *child_device_obj)
}
hv_debug_add_dev_dir(child_device_obj);
child_device_obj->device.dma_mask = &vmbus_dma_mask;
child_device_obj->device.dma_parms = &child_device_obj->dma_parms;
child_device_obj->device.dma_mask = &child_device_obj->dma_mask;
dma_set_mask(&child_device_obj->device, DMA_BIT_MASK(64));
return 0;
err_kset_unregister:

13
drivers/pci/controller/pci-hyperv.c
View File

@ -2155,8 +2155,17 @@ static void hv_pci_assign_numa_node(struct hv_pcibus_device *hbus)
if (!hv_dev)
continue;
if (hv_dev->desc.flags & HV_PCI_DEVICE_FLAG_NUMA_AFFINITY)
set_dev_node(&dev->dev, hv_dev->desc.virtual_numa_node);
if (hv_dev->desc.flags & HV_PCI_DEVICE_FLAG_NUMA_AFFINITY &&
hv_dev->desc.virtual_numa_node < num_possible_nodes())
/*
* The kernel may boot with some NUMA nodes offline
* (e.g. in a KDUMP kernel) or with NUMA disabled via
* "numa=off". In those cases, adjust the host provided
* NUMA node to a valid NUMA node used by the kernel.
*/
set_dev_node(&dev->dev,
numa_map_to_online_node(
hv_dev->desc.virtual_numa_node));
put_pcichild(hv_dev);
}

1
include/linux/hyperv.h
View File

@ -1262,6 +1262,7 @@ struct hv_device {
struct vmbus_channel *channel;
struct kset *channels_kset;
struct device_dma_parameters dma_parms;
u64 dma_mask;
/* place holder to keep track of the dir for hv device in debugfs */
struct dentry *debug_dir;