FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-22 17:33:01 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

mm: fix type cast in __pfn_to_phys()

Browse Source 
The various definitions of __pfn_to_phys() have been consolidated to
use a generic macro in include/asm-generic/memory_model.h. This hit
mainline in the form of 012dcef3f0 "mm: move __phys_to_pfn and
__pfn_to_phys to asm/generic/memory_model.h". When the generic macro
was implemented the type cast to phys_addr_t was dropped which caused
boot regressions on ARM platforms with more than 4GB of memory and
LPAE enabled.

It was suggested to use PFN_PHYS() defined in include/linux/pfn.h
as provides the correct logic and avoids further duplication.

Reported-by: kernelci.org bot <bot@kernelci.org>
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Tyler Baker 2015-09-19 03:58:10 -04:00 committed by Dan Williams
parent ba8fe0f85e
commit ae4f976968
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/asm-generic/memory_model.h
View File

@ -73,7 +73,7 @@
* Convert a physical address to a Page Frame Number and back * Convert a physical address to a Page Frame Number and back
*/ */
#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT)) #define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT))
#define __pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT) #define __pfn_to_phys(pfn) PFN_PHYS(pfn)
#define page_to_pfn __page_to_pfn #define page_to_pfn __page_to_pfn
#define pfn_to_page __pfn_to_page #define pfn_to_page __pfn_to_page