diff options
| author | Ingo Molnar <mingo@kernel.org> | 2018-03-27 08:43:39 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-03-27 08:43:39 +0200 |
| commit | 0bc91d4ba77156ae9217d25ed7c434540f950d05 (patch) | |
| tree | 949c1acf27b106184d8842586740fbbcc9c9ea62 /kernel/fail_function.c | |
| parent | 565977a3d929fc4427769117a8ac976ec16776d5 (diff) | |
| parent | 3eb2ce825ea1ad89d20f7a3b5780df850e4be274 (diff) | |
Merge tag 'v4.16-rc7' into x86/mm, to fix up conflict
Conflicts:
arch/x86/mm/init_64.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/fail_function.c')
| -rw-r--r-- | kernel/fail_function.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/fail_function.c b/kernel/fail_function.c index 21b0122cb39c..1d5632d8bbcc 100644 --- a/kernel/fail_function.c +++ b/kernel/fail_function.c @@ -14,6 +14,15 @@ static int fei_kprobe_handler(struct kprobe *kp, struct pt_regs *regs); +static void fei_post_handler(struct kprobe *kp, struct pt_regs *regs, + unsigned long flags) +{ + /* + * A dummy post handler is required to prohibit optimizing, because + * jump optimization does not support execution path overriding. + */ +} + struct fei_attr { struct list_head list; struct kprobe kp; @@ -56,6 +65,7 @@ static struct fei_attr *fei_attr_new(const char *sym, unsigned long addr) return NULL; } attr->kp.pre_handler = fei_kprobe_handler; + attr->kp.post_handler = fei_post_handler; attr->retval = adjust_error_retval(addr, 0); INIT_LIST_HEAD(&attr->list); } |