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authorThierry Reding <treding@nvidia.com>2014-07-28 17:20:33 +0200
committerThierry Reding <treding@nvidia.com>2014-11-10 15:59:21 +0100
commit4707a341b4af57c72c1573a89d303559cf7bcf88 (patch)
treeadf5f6360dafaf60e00995326b92cf1664828662 /arch/s390/include/asm/io.h
parentdc01201476ec9d62e81c0ee181531bccd8b007ff (diff)
downloadtalos-op-linux-4707a341b4af57c72c1573a89d303559cf7bcf88.tar.gz
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/dev/mem: Use more consistent data types
The xlate_dev_{kmem,mem}_ptr() functions take either a physical address or a kernel virtual address, so data types should be phys_addr_t and void *. They both return a kernel virtual address which is only ever used in calls to copy_{from,to}_user(), so make variables that store it void * rather than char * for consistency. Also only define a weak unxlate_dev_mem_ptr() function if architectures haven't overridden them in the asm/io.h header file. Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'arch/s390/include/asm/io.h')
-rw-r--r--arch/s390/include/asm/io.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index cd6b9ee7b69c..d22c2eeae78f 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -13,9 +13,10 @@
#include <asm/page.h>
#include <asm/pci_io.h>
-void *xlate_dev_mem_ptr(unsigned long phys);
#define xlate_dev_mem_ptr xlate_dev_mem_ptr
-void unxlate_dev_mem_ptr(unsigned long phys, void *addr);
+void *xlate_dev_mem_ptr(phys_addr_t phys);
+#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr
+void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
/*
* Convert a virtual cached pointer to an uncached pointer
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