The patch titled
Subject: asm-generic: io: don't perform swab during {in,out} string functions
has been added to the -mm tree. Its filename is
asm-generic-io-dont-perform-swab-during-inout-string-functions.patch
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------------------------------------------------------
From: Will Deacon <will.deacon@xxxxxxx>
Subject: asm-generic: io: don't perform swab during {in,out} string functions
The {in,out}s{b,w,l} functions are designed to operate on a stream of
bytes and therefore should not perform any byte-swapping, regardless of
the CPU byte order.
This patch fixes the generic IO header so that {in,out}s{b,w,l} call the
__raw_{read,write} functions directly rather than going via the
endian-correcting accessors.
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
Cc: Mike Frysinger <vapier@xxxxxxxxxx>
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
Acked-by: Ben Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/asm-generic/io.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff -puN include/asm-generic/io.h~asm-generic-io-dont-perform-swab-during-inout-string-functions include/asm-generic/io.h
--- a/include/asm-generic/io.h~asm-generic-io-dont-perform-swab-during-inout-string-functions
+++ a/include/asm-generic/io.h
@@ -153,7 +153,7 @@ static inline void insb(unsigned long ad
if (count) {
u8 *buf = buffer;
do {
- u8 x = inb(addr);
+ u8 x = __raw_readb(addr + PCI_IOBASE);
*buf++ = x;
} while (--count);
}
@@ -166,7 +166,7 @@ static inline void insw(unsigned long ad
if (count) {
u16 *buf = buffer;
do {
- u16 x = inw(addr);
+ u16 x = __raw_readw(addr + PCI_IOBASE);
*buf++ = x;
} while (--count);
}
@@ -179,7 +179,7 @@ static inline void insl(unsigned long ad
if (count) {
u32 *buf = buffer;
do {
- u32 x = inl(addr);
+ u32 x = __raw_readl(addr + PCI_IOBASE);
*buf++ = x;
} while (--count);
}
@@ -192,7 +192,7 @@ static inline void outsb(unsigned long a
if (count) {
const u8 *buf = buffer;
do {
- outb(*buf++, addr);
+ __raw_writeb(*buf++, addr + PCI_IOBASE);
} while (--count);
}
}
@@ -204,7 +204,7 @@ static inline void outsw(unsigned long a
if (count) {
const u16 *buf = buffer;
do {
- outw(*buf++, addr);
+ __raw_writew(*buf++, addr + PCI_IOBASE);
} while (--count);
}
}
@@ -216,7 +216,7 @@ static inline void outsl(unsigned long a
if (count) {
const u32 *buf = buffer;
do {
- outl(*buf++, addr);
+ __raw_writel(*buf++, addr + PCI_IOBASE);
} while (--count);
}
}
_
Patches currently in -mm which might be from will.deacon@xxxxxxx are
origin.patch
linux-next.patch
asm-generic-io-dont-perform-swab-during-inout-string-functions.patch
mtd-nand-gpio-use-ioreadwrite_rep-accessors.patch
musb-tusb6010-use-ioreadwrite_rep-accessors.patch
usb-musb-use-ioreadwrite_rep-accessors.patch
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