xref: /linux/arch/arm/kernel/jump_label.c (revision 7f71507851fc7764b36a3221839607d3a45c2025)
1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/kernel.h>
3 #include <linux/jump_label.h>
4 #include <asm/text-patching.h>
5 #include <asm/insn.h>
6 
7 static void __arch_jump_label_transform(struct jump_entry *entry,
8 					enum jump_label_type type,
9 					bool is_static)
10 {
11 	void *addr = (void *)entry->code;
12 	unsigned int insn;
13 
14 	if (type == JUMP_LABEL_JMP)
15 		insn = arm_gen_branch(entry->code, entry->target);
16 	else
17 		insn = arm_gen_nop();
18 
19 	if (is_static)
20 		__patch_text_early(addr, insn);
21 	else
22 		patch_text(addr, insn);
23 }
24 
25 void arch_jump_label_transform(struct jump_entry *entry,
26 			       enum jump_label_type type)
27 {
28 	__arch_jump_label_transform(entry, type, false);
29 }
30