Switch case logics are reworked so they appear more similar and
consistent. This eliminates compiler errors indicating unaligned pointer
values and packed members.

Added comments to explain previous size offset accumulations.

Link: https://lore.kernel.org/r/20220911221505.117655-10-jsmart2021@gmail.comCo-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>