arm64: kprobes: Move exception_text check in blacklist

Move exception/irqentry text address check in blacklist,
since those are symbol based rejection.

If we prohibit probing on the symbols in exception_text,
those should be blacklisted.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/kernel/probes/kprobes.c

@@ -98,9 +98,6 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 	/* copy instruction */
 	p->opcode = le32_to_cpu(*p->addr);
 
-	if (in_exception_text(probe_addr))
-		return -EINVAL;
-
 	if (search_exception_tables(probe_addr))
 		return -EINVAL;
 
@@ -483,7 +480,8 @@ bool arch_within_kprobe_blacklist(unsigned long addr)
 	    (addr >= (unsigned long)__idmap_text_start &&
 	    addr < (unsigned long)__idmap_text_end) ||
 	    (addr >= (unsigned long)__hyp_text_start &&
-	    addr < (unsigned long)__hyp_text_end))
+	    addr < (unsigned long)__hyp_text_end) ||
+	    in_exception_text(addr))
 		return true;
 
 	if (!is_kernel_in_hyp_mode()) {