The patch titled
Subject: include/linux/io-mapping.h-mapping: use PHYS_PFN() macro in io_mapping_map_atomic_wc()
has been added to the -mm tree. Its filename is
io-mapping-use-phys_pfn-macro-in-io_mapping_map_atomic_wc.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/io-mapping-use-phys_pfn-macro-in-io_mapping_map_atomic_wc.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/io-mapping-use-phys_pfn-macro-in-io_mapping_map_atomic_wc.patch
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------------------------------------------------------
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Subject: include/linux/io-mapping.h-mapping: use PHYS_PFN() macro in io_mapping_map_atomic_wc()
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@xxxxxxxxxxxxxxx
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/io-mapping.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
--- a/include/linux/io-mapping.h~io-mapping-use-phys_pfn-macro-in-io_mapping_map_atomic_wc
+++ a/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_mappi
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
_
Patches currently in -mm which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are
io-mapping-use-phys_pfn-macro-in-io_mapping_map_atomic_wc.patch
