powerpc/mpc5121_ads_cpld: Remove use of NO_IRQ_IGNORE
As NO_IRQ_IGNORE is only used between the static function cpld_pic_get_irq and its caller cpld_pic_cascade, and cpld_pic_cascade only uses it to suppress calling handle_generic_irq, we can change these uses to NO_IRQ and remove the extra tests and pathlength in cpld_pic_cascade. Signed-off-by: Milton Miller <miltonm@bga.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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