PA-RISC patches for 2.5.65:

 - Only remove palo.conf on a `make mrproper'
 - Add a \ continuation to kernel/Makefile
 - Reindent cache.c
 - Always call schedule_tail
 - Fix some typos in the hardware database
 - Signal handling changes
 - RAID, Device Mapper & BLKSZGET ioctl32 translations
 - Clean up pci host bridge handling a bit.
 - Make IDE link again
 - Fix up compat changes
 - Improve stack dumping code