https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104082
--- Comment #4 from David Binderman <dcb314 at hotmail dot com> --- I just tried compiling a recent linux kernel with the new gcc trunk and the warning appeared seven times. Only one of them was a proper bug, which I have reported. The rest were false positives. So this warning occasionally produces something useful, so it can't be simply temporarily ignored until it works properly. I suggest it gets taken out of -Wall and -Wextra until it works a bit better.
