From: Arnd Bergmann <arnd@xxxxxxxx>
clang warns about certain always-true conditions, like this one on 32-bit
builds:
mm/cma.c:420:13: error: result of comparison of constant 4294967296 with expression of type 'phys_addr_t' (aka 'unsigned int') is always true [-Werror,-Wtautological-constant-out-of-range-compare]
420 | if (start < SZ_4G)
| ~~~~~ ^ ~~~~~