28 May, 2012

1 commit

• 69ea64059   lib: Fix generic strnlen_user for 32-bit big-endian machines ... Browse Code »

  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
  Acked-by: David S. Miller
  Signed-off-by: Linus Torvalds

  Paul Mackerras

  2012-05-28 11:59:46 +0800  

27 May, 2012

1 commit

• a08c5356a   lib: add generic strnlen_user() function ... Browse Code »

  This adds a new generic optimized strnlen_user() function that uses the
  infrastructure to portably do efficient string
  handling.

  In many ways, strnlen is much simpler than strncpy, and in particular we
  can always pre-align the words we load from memory. That means that all
  the worries about alignment etc are a non-issue, so this one can easily
  be used on any architecture. You obviously do have to do the
  appropriate word-at-a-time.h macros.

  Signed-off-by: Linus Torvalds

  Linus Torvalds

  2012-05-27 02:33:53 +0800