include/linux/io-mapping.h-mapping: use PHYS_PFN() macro in io_mapping_map_atomic_wc() (2b755626) · Commits · 戴 / test

Use PHYS_PFN() macro in io_mapping_map_atomic_wc() instead of open coded variant. Link: http://lkml.kernel.org/r/20191209165624.56351-1-andriy.shevchenko@linux.intel.com Signed-off-by:

include/linux/io-mapping.h

+2 −3

Original line number	Diff line number	Diff line
		@@ -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