lib: Fix generic strnlen_user for 32-bit big-endian machines
authorPaul Mackerras <paulus@samba.org>
Mon, 28 May 2012 02:59:56 +0000 (12:59 +1000)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 28 May 2012 03:59:46 +0000 (20:59 -0700)
commit69ea6405980f217557b6a58f70ff60d8d88519a5
treed5e2b702e0226465d6962a28d1406c2deeb9fedd
parent1e2aec873ad6d16538512dbb96853caa1fa076af
lib: Fix generic strnlen_user for 32-bit big-endian machines

The aligned_byte_mask() definition is wrong for 32-bit big-endian
machines: the "7-(n)" part of the definition assumes a long is 8
bytes.  This fixes it by using BITS_PER_LONG - 8 instead of 8*7.
Tested on 32-bit and 64-bit PowerPC.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lib/strnlen_user.c