[PATCH] lib : lz4 using put_unaligned_le16 instead of put_unaligned

[PATCH] lib : lz4 using put_unaligned_le16 instead of put_unaligned

[Eunbong Song]

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In case of mips bigendian machine, put_unaligned writes bigendian bytes order. 
This is defined in arch/mips/include/asm/unaligned.h. So it's right use put_unaligned_le16 function instead of put_unaligned.
This patch also fixes problem fail to mount zram ext4 partition with "zram: Decompression failed! err=-1, page=0" in mips bigendian machine.

Signed-off-by: Eunbong Song <eunb.song@samsung.com>
---
 lib/lz4/lz4defs.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lib/lz4/lz4defs.h b/lib/lz4/lz4defs.h
index abcecdc..dc7ef14 100644
--- a/lib/lz4/lz4defs.h
+++ b/lib/lz4/lz4defs.h
@@ -53,7 +53,7 @@ typedef struct _U64_S { u64 v; } U64_S;
 
 #define LZ4_WRITE_LITTLEENDIAN_16(p, v)	\
 	do {	\
-		put_unaligned(v, (u16 *)(p)); \
+		put_unaligned_le16(v, (u16 *)(p)); \
 		p += 2; \
 	} while (0)
 #endif
-- 
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Re: [PATCH] lib : lz4 using put_unaligned_le16 instead of put_unaligned

[Greg KH]

On Tue, Jul 22, 2014 at 02:03:22AM +0000, Eunbong Song wrote:
> 
> In case of mips bigendian machine, put_unaligned writes bigendian bytes order. 
> This is defined in arch/mips/include/asm/unaligned.h. So it's right use put_unaligned_le16 function instead of put_unaligned.
> This patch also fixes problem fail to mount zram ext4 partition with "zram: Decompression failed! err=-1, page=0" in mips bigendian machine.

Odd line wrapping :(

Anyway, is this a new problem?  Or something that has always been there
in this compression function?

thanks,

greg k-h