stable inclusion
from stable-5.10.12
commit c6fd968f58439398b765300aecd7758d501ee49c
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5Q0UG?from=project-issue


CVE: NA

--------------------------------

commit 1d489151e9f9d1647110277ff77282fe4d96d09b upstream.

Thanks to a recent binutils change which doesn't generate unused
symbols, it's now possible for thunk_64.o be completely empty without
CONFIG_PREEMPTION: no text, no data, no symbols.

We could edit the Makefile to only build that file when
CONFIG_PREEMPTION is enabled, but that will likely create confusion
if/when the thunks end up getting used by some other code again.

Just ignore it and move on.

Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1254


Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: tangbin <tangbin_yewu@cmss.chinamobile.com>