Hi Rong,
I was just trying some of my in-flight changes against linux-next and
found that my RTL9300* based board no longer boots (nothing on the
serial console after U-Boot hands off to the kernel).
A bisect between Linus's tree and linux-next/master points to commit
d4a7f2510ff4 ("vmlinux.lds.h: Adjust symbol ordering in text output
section"). A build on d4a7f2510ff4^ boots successfully. That series is
well beyond my area of knowledge, there may be something that the MIPS
SoCs are doing (or not doing) that is being affected by the sections moving.
Thanks,
Chris
[*] - The RTL9300 is a Realtek Ethernet Switch with integrated MIPS SoC.