From: Al Viro <viro@ftp.linux.org.uk>
To: torvalds@linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 12/17] hid-core endianness annotations
Date: Wed, 14 Mar 2007 09:19:50 +0000 [thread overview]
Message-ID: <E1HRPeA-0003Xn-1s@ZenIV.linux.org.uk> (raw)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
drivers/hid/hid-core.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index f4ee1af..9c8157f 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -753,8 +753,7 @@ static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
report += offset >> 3; /* adjust byte index */
offset &= 7; /* now only need bit offset into one byte */
- x = get_unaligned((u64 *) report);
- x = le64_to_cpu(x);
+ x = le64_to_cpu(get_unaligned((__le64 *) report));
x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
return (u32) x;
}
@@ -769,7 +768,7 @@ static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
*/
static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
{
- u64 x;
+ __le64 x;
u64 m = (1ULL << n) - 1;
WARN_ON(n > 32);
@@ -780,10 +779,10 @@ static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u3
report += offset >> 3;
offset &= 7;
- x = get_unaligned((u64 *)report);
+ x = get_unaligned((__le64 *)report);
x &= cpu_to_le64(~(m << offset));
x |= cpu_to_le64(((u64) value) << offset);
- put_unaligned(x, (u64 *) report);
+ put_unaligned(x, (__le64 *) report);
}
/*
--
1.5.0-rc2.GIT
reply other threads:[~2007-03-14 9:20 UTC|newest]
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