$ ret=0; ./tools/buildman/buildman -o /tmp -P -E -W aarch64 || ret=$?; if [[ $ret -ne 0 ]]; then ./tools/buildman/buildman -o /tmp -seP; exit $ret; fi;
Building current source for 249 boards (24 threads, 1 job per thread)
   aarch64:  +   uniphier_v8
+include/linux/bitfield.h: In function 'le16_encode_bits':
+include/linux/bitfield.h:146:33: error: implicit declaration of function 'cpu_to_le16' [-Werror=implicit-function-declaration]
+  146 |  ____MAKE_OP(le##size, u##size, cpu_to_le##size, le##size##_to_cpu) \
+      |                                 ^~~~~~~~~
+include/linux/bitfield.h:128:9: note: in definition of macro '____MAKE_OP'
+  128 |  return to((v & field_mask(field)) * field_multiplier(field)); \
+      |         ^~
+include/linux/bitfield.h:151:1: note: in expansion of macro '__MAKE_OP'
+  151 | __MAKE_OP(16)
+      | ^~~~~~~~~
+include/linux/bitfield.h: In function 'le16_get_bits':
+include/linux/bitfield.h:146:50: error: implicit declaration of function 'le16_to_cpu' [-Werror=implicit-function-declaration]
+      |                                                  ^~
+include/linux/bitfield.h:142:10: note: in definition of macro '____MAKE_OP'
+  142 |  return (from(v) & field) / field_multiplier(field);  \
+      |          ^~~~
+include/linux/bitfield.h: In function 'be16_encode_bits':
+include/linux/bitfield.h:147:33: error: implicit declaration of function 'cpu_to_be16' [-Werror=implicit-function-declaration]
+  147 |  ____MAKE_OP(be##size, u##size, cpu_to_be##size, be##size##_to_cpu) \
+include/linux/bitfield.h: In function 'be16_get_bits':
+include/linux/bitfield.h:147:50: error: implicit declaration of function 'be16_to_cpu' [-Werror=implicit-function-declaration]
+include/linux/bitfield.h: In function 'le32_encode_bits':
+include/linux/bitfield.h:146:33: error: implicit declaration of function 'cpu_to_le32' [-Werror=implicit-function-declaration]
+include/linux/bitfield.h:152:1: note: in expansion of macro '__MAKE_OP'
+  152 | __MAKE_OP(32)
+include/linux/bitfield.h: In function 'le32_get_bits':
+include/linux/bitfield.h:146:50: error: implicit declaration of function 'le32_to_cpu' [-Werror=implicit-function-declaration]
+include/linux/bitfield.h: In function 'be32_encode_bits':
+include/linux/bitfield.h:147:33: error: implicit declaration of function 'cpu_to_be32' [-Werror=implicit-function-declaration]
+include/linux/bitfield.h: In function 'be32_get_bits':
+include/linux/bitfield.h:147:50: error: implicit declaration of function 'be32_to_cpu' [-Werror=implicit-function-declaration]
+include/linux/bitfield.h: In function 'le64_encode_bits':
+include/linux/bitfield.h:146:33: error: implicit declaration of function 'cpu_to_le64' [-Werror=implicit-function-declaration]
+include/linux/bitfield.h:153:1: note: in expansion of macro '__MAKE_OP'
+  153 | __MAKE_OP(64)
+include/linux/bitfield.h: In function 'le64_get_bits':
+include/linux/bitfield.h:146:50: error: implicit declaration of function 'le64_to_cpu' [-Werror=implicit-function-declaration]
+include/linux/bitfield.h: In function 'be64_encode_bits':
+include/linux/bitfield.h:147:33: error: implicit declaration of function 'cpu_to_be64' [-Werror=implicit-function-declaration]
+include/linux/bitfield.h: In function 'be64_get_bits':
+include/linux/bitfield.h:147:50: error: implicit declaration of function 'be64_to_cpu' [-Werror=implicit-function-declaration]
+cc1: all warnings being treated as errors
+make[3]: *** [arch/arm/mach-uniphier/clk/pll-base-ld20.o] Error 1
+make[2]: *** [arch/arm/mach-uniphier/clk] Error 2
+make[1]: *** [arch/arm/mach-uniphier] Error 2
+make: *** [sub-make] Error 2