armv6-m/arm_exception.S:139:2: error: invalid instruction, any one of the following would fix this:
sub r1, #(4 * (10))
^
armv6-m/arm_exception.S:139:2: note: instruction requires: thumb2
sub r1, #(4 * (10))
^
armv6-m/arm_exception.S:139:10: note: invalid operand for instruction
sub r1, #(4 * (10))
^
armv6-m/arm_exception.S:139:2: note: no flag-preserving variant of this instruction available
sub r1, #(4 * (10))
^
armv6-m/arm_exception.S:139:10: note: operand must be a register in range [r0, r7]
sub r1, #(4 * (10))
^
-----------------------------------------
bringup.c:125:18: warning: variable 'ret' is uninitialized when used here [-Wuninitialized]
return ret;
^~~
bringup.c:73:10: note: initialize the variable 'ret' to silence this warning
int ret;
^
= 0
Signed-off-by: chao an <anchao@xiaomi.com>