On 19.11.2021 19:21, Andrew Cooper wrote: > The unconditional nmi_callback() call in do_nmi() calls dummy_nmi_callback() > in all cases other than for a few specific and rare tasks (alternative > patching, microcode loading, etc). > > Indirect calls are expensive under retpoline, so rearrange the logic to use > NULL as the default, and skip the call entirely in the common case. > > While rearranging the code, fold the exit paths. > > Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com>
