yet another new version of the Amiga RDB partition table patch. I've split off the part fixing the incorrect use of signed int for partition start address and size as separate patch. This change should be incontroversial (I hope). It does fix the bug that Martin Steigerwald reported six years ago for a 2 TB disk. I have tested this patch with the identical RDB partition data that Martin saw the bug with. I have incorporated Andreas' feedback on proper use of casts to avoid integer overflow in this version. The simple fix still leaves ample room for overflows in calculating start address and size of a RDB partition, though such overflows should only be seen in rather unusual cases. To address these potential overflows, checks are added in the second patch of this series. The use of u64 instead of sector_t in the second patch is required to catch overflows even in cases where sector_t is 32 bit wide (i.e. no LBD support). Cheers, Michael
