Fix build warnings and errors on Linux 6.14ecrts25-ae

- Remove repetitive declarations of two `bus_type` structs.
- Fix mmu.c to use an always-64-bit member for `parent_addr`.
- Remove call to `page_mapcount_reset()` that isn't needed.
- Correct `nvdebug_pd_page` documentation.
- Disable missing prototype and missing declaration warnings.
- Fix an improper type, and a missing type conversion.

Tested build on Linux 6.14.0 (x86_64), 5.4.0 (x86_64), and
4.9.337 (aarch64).

1 files changed, 0 insertions, 1 deletions

diff --git a/stubs.h b/stubs.h
index b909587..da14bed 100644
--- a/stubs.h
+++ b/stubs.h
@@ -29,7 +29,6 @@ pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
 // Functions from drivers/pci/search.h
 #include <linux/device.h>
 #include <linux/pci.h>
-extern struct bus_type pci_bus_type;
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(5,3,0)
 static int match_pci_dev_by_id(struct device *dev, void *data)