Enable -Wshadow, clean code for that

This is not just for fun. We hit a real bug on BSD with the outl macros.
The macro variable tmp collided with the tmp from outer scope.

second revision, now also taking care of inb/inw/inl. While that shadowing
did not introduce bugs (yet), of course it breaks the build on BSD when
-Wshadow is enabled.

Corresponding to flashrom svn r860.

Signed-off-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
Acked-by: Luc Verhaegen <libv@skynet.be>
5 files changed