Building the DynamicTablesPkg with the additional -Wpointer-arith flag triggers the following error: "pointer of type ‘void *’ used in arithmetic [-Werror=pointer-arith]" Cast the void pointer to fix the error. Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>