diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2016-01-22 18:43:28 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-01-31 18:10:19 +0100 |
| commit | 76e9f0ee52b0be5761e29847e0ef01f23f24f1df (patch) | |
| tree | 0efd20fa750dc2caf479fd0164493d5b50653413 /kernel/memremap.c | |
| parent | mm: fix pfn_t to page conversion in vm_insert_mixed (diff) | |
| download | linux-76e9f0ee52b0be5761e29847e0ef01f23f24f1df.tar.xz linux-76e9f0ee52b0be5761e29847e0ef01f23f24f1df.zip | |
phys_to_pfn_t: use phys_addr_t
A dma_addr_t is potentially smaller than a phys_addr_t on some archs.
Don't truncate the address when doing the pfn conversion.
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Reported-by: Matthew Wilcox <willy@linux.intel.com>
[willy: fix pfn_t_to_phys as well]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'kernel/memremap.c')
| -rw-r--r-- | kernel/memremap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/memremap.c b/kernel/memremap.c index cbc3e97e2bb4..70ee3775de24 100644 --- a/kernel/memremap.c +++ b/kernel/memremap.c @@ -150,7 +150,7 @@ void devm_memunmap(struct device *dev, void *addr) } EXPORT_SYMBOL(devm_memunmap); -pfn_t phys_to_pfn_t(dma_addr_t addr, unsigned long flags) +pfn_t phys_to_pfn_t(phys_addr_t addr, unsigned long flags) { return __pfn_to_pfn_t(addr >> PAGE_SHIFT, flags); } |