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The function sets adjasted groups of bits in hub_irq_map by using for-loops. There's a bitmap_set() function dedicated to do this. Because [0, CPU_CALL_B_IRQ] and [NI_BRDCAST_ERR_A, MSC_PANIC_INTR] ranges belong to the same machine word, bitmap_set() would boil down to an inline wrapper in both cases, avoiding generating a loop, whth the associate overhead. Signed-off-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>