K 10 svn:author V 3 mav K 8 svn:date V 27 2016-07-14T00:26:57.531055Z K 7 svn:log V 358 MFC r302402: Fix ahci(4) driver attach to controller with 32 ports. Incorrect sign expansion in variables that supposed to be a bit fields caused infinite loop. Fixing this allows system properly detect maximal possible 32 devices configured on AHCI HBA of BHyVe. That case did not happen in a wild before due to lack of hardware AHCI HBAs with 32 ports. END