Simplify kallsyms_lookup()
Several kallsyms_lookup() pass dummy arguments but only need, say, module's
name. Make kallsyms_lookup() accept NULLs where possible.
Also, makes picture clearer about what interfaces are needed for all symbol
resolving business.
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 0207045..bee29bd 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -868,13 +868,13 @@
struct kprobe *p, *kp;
const char *sym = NULL;
unsigned int i = *(loff_t *) v;
- unsigned long size, offset = 0;
+ unsigned long offset = 0;
char *modname, namebuf[128];
head = &kprobe_table[i];
preempt_disable();
hlist_for_each_entry_rcu(p, node, head, hlist) {
- sym = kallsyms_lookup((unsigned long)p->addr, &size,
+ sym = kallsyms_lookup((unsigned long)p->addr, NULL,
&offset, &modname, namebuf);
if (p->pre_handler == aggr_pre_handler) {
list_for_each_entry_rcu(kp, &p->list, list)
