During recent PCI cleanups we noticed that the isa_dma_bridge_buggy
symbol supported by all architectures is actually only used for x86_32.
This patch moves the symbol out of all architectures limiting usage to
only x86_32. This is possible because only x86_32 platforms or quirks
existing in PCI
The setup_profiling_timer() is mostly un-implemented by many
architectures. In many places it isn't guarded by CONFIG_PROFILE
which is needed for it to be used. Make it a weak symbol in
kernel/profile.c and remove the 'return -EINVAL' implementations
from the kenrel.
There are a couple of architec
