Re: [PATCH RFC 1/8] ftrace: Let ftrace_call_adjust() reject a patch site

[Steven Rostedt]

On Fri, 04 Sep 2026 01:18:33 +0000
"Jose Fernandez (Anthropic)" <jose.fernan...@linux.dev> wrote:

> diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
> index f9d80c7bd9f16..394f82230e0c3 100644
> --- a/kernel/trace/ftrace.c
> +++ b/kernel/trace/ftrace.c
> @@ -7676,6 +7676,10 @@ static int ftrace_process_locs(struct module *mod,
>               }
>  
>               addr = ftrace_call_adjust(addr);
> +             if (!addr) {
> +                     skipped++;
> +                     continue;
> +             }
>  

The above could use a comment to why addr could be zero (I didn't even
realize some architectures do that).

        /* Some architectures may return zero for mis-aligned addresses */

-- Steve