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Diffstat (limited to 'arch/arm/include/asm/jump_label.h')
-rw-r--r--arch/arm/include/asm/jump_label.h25
1 files changed, 17 insertions, 8 deletions
diff --git a/arch/arm/include/asm/jump_label.h b/arch/arm/include/asm/jump_label.h
index 5f337dc5c108..34f7b6980d21 100644
--- a/arch/arm/include/asm/jump_label.h
+++ b/arch/arm/include/asm/jump_label.h
@@ -4,23 +4,32 @@
#ifndef __ASSEMBLY__
#include <linux/types.h>
+#include <asm/unified.h>
#define JUMP_LABEL_NOP_SIZE 4
-#ifdef CONFIG_THUMB2_KERNEL
-#define JUMP_LABEL_NOP "nop.w"
-#else
-#define JUMP_LABEL_NOP "nop"
-#endif
+static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
+{
+ asm_volatile_goto("1:\n\t"
+ WASM(nop) "\n\t"
+ ".pushsection __jump_table, \"aw\"\n\t"
+ ".word 1b, %l[l_yes], %c0\n\t"
+ ".popsection\n\t"
+ : : "i" (&((char *)key)[branch]) : : l_yes);
+
+ return false;
+l_yes:
+ return true;
+}
-static __always_inline bool arch_static_branch(struct static_key *key)
+static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
{
asm_volatile_goto("1:\n\t"
- JUMP_LABEL_NOP "\n\t"
+ WASM(b) " %l[l_yes]\n\t"
".pushsection __jump_table, \"aw\"\n\t"
".word 1b, %l[l_yes], %c0\n\t"
".popsection\n\t"
- : : "i" (key) : : l_yes);
+ : : "i" (&((char *)key)[branch]) : : l_yes);
return false;
l_yes: