tree 6f0d272d80f7859b308e13b102a31e74ebeebde6
parent 60ce8f7260d9ae4ff17548f5a275edfbc200187a
author Steven Rostedt <srostedt@redhat.com> 1234535499 -0800
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1235346535 +1100

powerpc, ftrace: use unsigned int for instruction manipulation

The original port of ftrace to PowerPC kept a lot of the code used
by x86. Some of this code was to handle x86's 5 byte instruction.
This was handled by using character arrays to manipulate the
code.

PowerPC has a consistent 4 byte instruction. Using unsigned ints
makes the code more efficient as well as more readable.
By converting to use unsigned ints to represent instructions,
I was able to remove the side effects that were needed for
manipulating character strings.

  i.e. memcpy and memcmp

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>