All the 32 bit architectures (effectively) define SIGEV_PAD_SIZE to be
((SIGEV_MAX_SIZE/sizeof(int)) - 3).  So define COMPAT_SIGEV_PAD_SIZE to be
this and replace SIGEV_PAD_SIZE32 where it is used.  It also needs to be
used in the definition of struct compat_sigevent as most of the
architectures would have had it 4 bytes too small in the kernel (since we
were using SIGEV_PAD_SIZE).
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>