To support addition of "bitmask" to MASKABLE_* macros,
factor out the EXCPETION_PROLOG_1 macro.
Signed-off-by: Madhavan Srinivasan <redacted>
Really minor nit, but as a matter of readability of the series,
would you consider moving this next to patch 10 where it's used,
if you submit again?
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>