um: Add missing apply_returns()

Implement apply_returns() stub for UM, just like all the other patching
routines.

Fixes: 15e67227c4 ("x86: Undo return-thunk damage")
Reported-by: Randy Dunlap <rdunlap@infradead.org)
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Peter Zijlstra 2022-07-14 12:20:19 +02:00 committed by Richard Weinberger
parent dda520d07b
commit 637285e7f8

View File

@ -432,6 +432,10 @@ void apply_retpolines(s32 *start, s32 *end)
{
}
void apply_returns(s32 *start, s32 *end)
{
}
void apply_alternatives(struct alt_instr *start, struct alt_instr *end)
{
}