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authorDan Williams <dan.j.williams@intel.com>2016-01-22 20:43:28 +0300
committerDan Williams <dan.j.williams@intel.com>2016-01-31 20:10:19 +0300
commit76e9f0ee52b0be5761e29847e0ef01f23f24f1df (patch)
tree0efd20fa750dc2caf479fd0164493d5b50653413 /include/linux
parent03fc2da63b9a33dce784a2075c7e068bb97cbf69 (diff)
downloadlinux-76e9f0ee52b0be5761e29847e0ef01f23f24f1df.tar.xz
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 'include/linux')
-rw-r--r--include/linux/pfn_t.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/pfn_t.h b/include/linux/pfn_t.h
index 0703b5360d31..37448ab5fb5c 100644
--- a/include/linux/pfn_t.h
+++ b/include/linux/pfn_t.h
@@ -29,7 +29,7 @@ static inline pfn_t pfn_to_pfn_t(unsigned long pfn)
return __pfn_to_pfn_t(pfn, 0);
}
-extern pfn_t phys_to_pfn_t(dma_addr_t addr, unsigned long flags);
+extern pfn_t phys_to_pfn_t(phys_addr_t addr, unsigned long flags);
static inline bool pfn_t_has_page(pfn_t pfn)
{
@@ -48,7 +48,7 @@ static inline struct page *pfn_t_to_page(pfn_t pfn)
return NULL;
}
-static inline dma_addr_t pfn_t_to_phys(pfn_t pfn)
+static inline phys_addr_t pfn_t_to_phys(pfn_t pfn)
{
return PFN_PHYS(pfn_t_to_pfn(pfn));
}