Re: [PATCH] printk: Userspace format enumeration support

From: Chris Down
Date: Thu Feb 04 2021 - 19:49:02 EST


Some improvements I noticed that I'll include when sending v2.

Chris Down writes:
+static void remove_printk_fmt_sec(const struct module *mod)
+{
+ struct printk_fmt_sec *tmp = NULL, *ps = NULL;
+ const char **fptr = NULL;

fptr can be scoped to list_for_each_entry_safe, I'll move it.

+static int proc_pf_show(struct seq_file *s, void *v)
+{
+ const struct printk_fmt_sec *ps = NULL;
+ const char **fptr = NULL;

Ditto for list_for_each_entry.

+
+ mutex_lock(&printk_fmts_mutex);
+
+ list_for_each_entry(ps, &printk_fmts_list, list) {
+ const char *mod_name = ps_get_module_name(ps);
+
+ for (fptr = ps->start; fptr < ps->end; fptr++) {
+ seq_puts(s, mod_name);
+ seq_putc(s, ',');
+ seq_puts(s, *fptr);
+ seq_putc(s, '\0');
+ }
+ }

Not sure why I didn't just use seq_printf here. I'll do that.

I'll wait a few days for feedback then will send v2 either way. :-)