arch/sparc/include/asm/jump_label.h

   1 #ifndef _ASM_SPARC_JUMP_LABEL_H
   2 #define _ASM_SPARC_JUMP_LABEL_H
   3
   4 #ifdef __KERNEL__
   5
   6 #include <linux/types.h>
   7
   8 #define JUMP_LABEL_NOP_SIZE 4
   9
  10 static __always_inline bool arch_static_branch(struct static_key *key)
  11 {
  12                 asm_volatile_goto("1:\n\t"
  13                          "nop\n\t"
  14                          "nop\n\t"
  15                          ".pushsection __jump_table,  \"aw\"\n\t"
  16                          ".align 4\n\t"
  17                          ".word 1b, %l[l_yes], %c0\n\t"
  18                          ".popsection \n\t"
  19                          : :  "i" (key) : : l_yes);
  20         return false;
  21 l_yes:
  22         return true;
  23 }
  24
  25 #endif /* __KERNEL__ */
  26
  27 typedef u32 jump_label_t;
  28
  29 struct jump_entry {
  30         jump_label_t code;
  31         jump_label_t target;
  32         jump_label_t key;
  33 };
  34
  35 #endif