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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-09-24 10:42:06 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-09-24 10:42:06 +0100
commitd2f607484f8210cf19b1730dee26d426a5a770a5 (patch)
treeb05e0376b0843063e14342811dbedc8bf2f4177b
parent87e807b6c461bbd449496a4c3ab78ab164a4ba97 (diff)
[ARM] Fix compiler warnings for memcpy_toio/memcpy_fromio/memset_io
Add 'volatile' to the __iomem pointers for these functions as per x86. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/kernel/io.c6
-rw-r--r--include/asm-arm/io.h6
2 files changed, 6 insertions, 6 deletions
diff --git a/arch/arm/kernel/io.c b/arch/arm/kernel/io.c
index 6c20c1188b6..1f6822dfae7 100644
--- a/arch/arm/kernel/io.c
+++ b/arch/arm/kernel/io.c
@@ -7,7 +7,7 @@
* Copy data from IO memory space to "real" memory space.
* This needs to be optimized.
*/
-void _memcpy_fromio(void *to, void __iomem *from, size_t count)
+void _memcpy_fromio(void *to, const volatile void __iomem *from, size_t count)
{
unsigned char *t = to;
while (count) {
@@ -22,7 +22,7 @@ void _memcpy_fromio(void *to, void __iomem *from, size_t count)
* Copy data from "real" memory space to IO memory space.
* This needs to be optimized.
*/
-void _memcpy_toio(void __iomem *to, const void *from, size_t count)
+void _memcpy_toio(volatile void __iomem *to, const void *from, size_t count)
{
const unsigned char *f = from;
while (count) {
@@ -37,7 +37,7 @@ void _memcpy_toio(void __iomem *to, const void *from, size_t count)
* "memset" on IO memory space.
* This needs to be optimized.
*/
-void _memset_io(void __iomem *dst, int c, size_t count)
+void _memset_io(volatile void __iomem *dst, int c, size_t count)
{
while (count) {
count--;
diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h
index cfa71a0dffb..5c4ae8f5dbb 100644
--- a/include/asm-arm/io.h
+++ b/include/asm-arm/io.h
@@ -136,9 +136,9 @@ extern void __readwrite_bug(const char *fn);
/*
* String version of IO memory access ops:
*/
-extern void _memcpy_fromio(void *, void __iomem *, size_t);
-extern void _memcpy_toio(void __iomem *, const void *, size_t);
-extern void _memset_io(void __iomem *, int, size_t);
+extern void _memcpy_fromio(void *, const volatile void __iomem *, size_t);
+extern void _memcpy_toio(volatile void __iomem *, const void *, size_t);
+extern void _memset_io(volatile void __iomem *, int, size_t);
#define mmiowb()