#ifndef _ASM_S390_JUMP_LABEL_H #define _ASM_S390_JUMP_LABEL_H #include <linux/types.h> #define JUMP_LABEL_NOP_SIZE 6 #ifdef CONFIG_64BIT #define ASM_PTR ".quad" #define ASM_ALIGN ".balign 8" #else #define ASM_PTR ".long" #define ASM_ALIGN ".balign 4" #endif static __always_inline bool arch_static_branch(struct static_key *key) { asm_volatile_goto("0: brcl 0,0\n" ".pushsection __jump_table, \"aw\"\n" ASM_ALIGN "\n" ASM_PTR " 0b, %l[label], %0\n" ".popsection\n" : : "X" (key) : : label); return false; label: return true; } typedef unsigned long jump_label_t; struct jump_entry { jump_label_t code; jump_label_t target; jump_label_t key; }; #endif