On Saturday 2020-03-14 10:46, Rafael J. Wysocki wrote: >On Thursday, March 5, 2020 1:24:25 PM CET Jan Engelhardt wrote: >> The value in "new" is constructed from "old" such that all bits defined >> as reserved by the ACPI spec[1] are left untouched. But if those bits >> do not happen to be all zero, "new < 3" will not evaluate to true. >> >> The firmware of the laptop(s) Medion MD63490 / Akoya P15648 comes with >> garbage inside the "FACS" ACPI table. The starting value is >> old=0x4944454d, therefore new=0x4944454e, which is >= 3. Mask off >> the reserved bits. >> >> - return (new < 3) ? -1 : 0; >> + return ((new & 0x3) < 3) ? -1 : 0; > >Applied as 5.7 material, thanks! Would it make sense to funnel this into the upcoming 5.6?
