Re: [PATCH v3] ftrace: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak functions

[Steven Rostedt]

On Thu, 26 May 2022 10:38:10 -0400
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> +++ b/arch/x86/include/asm/ftrace.h
> @@ -9,6 +9,11 @@
>  # define MCOUNT_ADDR		((unsigned long)(__fentry__))
>  #define MCOUNT_INSN_SIZE	5 /* sizeof mcount call */
>  
> +/* Ignore unused weak functions which will have non zero offsets */
> +#ifdef CONFIG_HAVE_FENTRY
> +# define FTRACE_MCOUNT_MAX_OFFSET	0
> +#endif
> +

I screwed up this patch. Please ignore.

And Peter just informed me that IBT is in 5.18 already, and not 5.19. So,
I'll add his suggestion in v4.

-- Steve