Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH v1] io-mapping: Use PHYS_PFN() macro in io_mapping_map_atomic_wc() | Date | Mon, 9 Dec 2019 18:56:24 +0200 |
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Use PHYS_PFN() macro in io_mapping_map_atomic_wc() instead of open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- include/linux/io-mapping.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h index 6e125e9b4187..837058bc1c9f 100644 --- a/include/linux/io-mapping.h +++ b/include/linux/io-mapping.h @@ -28,6 +28,7 @@ struct io_mapping { #ifdef CONFIG_HAVE_ATOMIC_IOMAP +#include <linux/pfn.h> #include <asm/iomap.h> /* * For small address space machines, mapping large objects @@ -64,12 +65,10 @@ io_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset) { resource_size_t phys_addr; - unsigned long pfn; BUG_ON(offset >= mapping->size); phys_addr = mapping->base + offset; - pfn = (unsigned long) (phys_addr >> PAGE_SHIFT); - return iomap_atomic_prot_pfn(pfn, mapping->prot); + return iomap_atomic_prot_pfn(PHYS_PFN(phys_addr), mapping->prot); } static inline void -- 2.24.0
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