@@ -452,6 +452,7 @@ int dev_dax_probe(struct dev_dax *dev_dax)
}
EXPORT_SYMBOL_GPL(dev_dax_probe);
+unsigned int dax_match = 1;
static struct dax_device_driver device_dax_driver = {
.probe = dev_dax_probe,
/* all probe actions are unwound by devm, so .remove isn't necessary */
@@ -460,6 +461,7 @@ int dev_dax_probe(struct dev_dax *dev_dax)
static int __init dax_init(void)
{
+ device_dax_driver.match_always = dax_match;
return dax_driver_register(&device_dax_driver);
}
@@ -468,6 +470,7 @@ static void __exit dax_exit(void)
dax_driver_unregister(&device_dax_driver);
}
+module_param(dax_match, uint, 0644);
MODULE_AUTHOR("Intel Corporation");
MODULE_LICENSE("GPL v2");
module_init(dax_init);
@@ -214,9 +214,11 @@ static void dev_dax_kmem_remove(struct dev_dax *dev_dax)
}
#endif /* CONFIG_MEMORY_HOTREMOVE */
+unsigned int kmem_match;
static struct dax_device_driver device_dax_kmem_driver = {
.probe = dev_dax_kmem_probe,
.remove = dev_dax_kmem_remove,
+ .match_always = 0,
};
static int __init dax_kmem_init(void)
@@ -228,6 +230,7 @@ static int __init dax_kmem_init(void)
if (!kmem_name)
return -ENOMEM;
+ device_dax_kmem_driver.match_always = kmem_match;
rc = dax_driver_register(&device_dax_kmem_driver);
if (rc)
kfree_const(kmem_name);
@@ -241,6 +244,7 @@ static void __exit dax_kmem_exit(void)
kfree_const(kmem_name);
}
+module_param(kmem_match, uint, 0644);
MODULE_AUTHOR("Intel Corporation");
MODULE_LICENSE("GPL v2");
module_init(dax_kmem_init);
device_dax driver always match dax devices by default. The other drivers only match devices by dax_id. There is situations which need kmem drvier match all the dax device at boot time. So adding a parameter to support this function. Signed-off-by: Zhenguo Yao <yaozhenguo1@gmail.com> --- Changes: - v1->v2 fix build errors report by kernel test robot <lkp@intel.com> --- drivers/dax/device.c | 3 +++ drivers/dax/kmem.c | 4 ++++ 2 files changed, 7 insertions(+)