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The function checks the HSR_PT_SLAVE_A and HSR_PT_SLAVE_B bitmaps for emptiness right before calling find_last_bit(). This pass may be avoided, because if the bitmap is empty, the find_last_bit() returns >= HSR_SEQ_BLOCK_SIZE Signed-off-by: Yury Norov <[email protected]> Reviewed-by: Felix Maurer <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>