diff options
Diffstat (limited to 'arch/arm64/include/asm/jump_label.h')
-rw-r--r-- | arch/arm64/include/asm/jump_label.h | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/arch/arm64/include/asm/jump_label.h b/arch/arm64/include/asm/jump_label.h index 6aafbb789991..a0a5bbae7229 100644 --- a/arch/arm64/include/asm/jump_label.h +++ b/arch/arm64/include/asm/jump_label.h @@ -13,19 +13,26 @@ #include <linux/types.h> #include <asm/insn.h> +#define HAVE_JUMP_LABEL_BATCH #define JUMP_LABEL_NOP_SIZE AARCH64_INSN_SIZE +#define JUMP_TABLE_ENTRY(key, label) \ + ".pushsection __jump_table, \"aw\"\n\t" \ + ".align 3\n\t" \ + ".long 1b - ., %l["#label"] - .\n\t" \ + ".quad %c0 - .\n\t" \ + ".popsection\n\t" \ + : : "i"(key) : : label + static __always_inline bool arch_static_branch(struct static_key * const key, const bool branch) { + char *k = &((char *)key)[branch]; + asm goto( "1: nop \n\t" - " .pushsection __jump_table, \"aw\" \n\t" - " .align 3 \n\t" - " .long 1b - ., %l[l_yes] - . \n\t" - " .quad %c0 - . \n\t" - " .popsection \n\t" - : : "i"(&((char *)key)[branch]) : : l_yes); + JUMP_TABLE_ENTRY(k, l_yes) + ); return false; l_yes: @@ -35,15 +42,11 @@ l_yes: static __always_inline bool arch_static_branch_jump(struct static_key * const key, const bool branch) { + char *k = &((char *)key)[branch]; asm goto( "1: b %l[l_yes] \n\t" - " .pushsection __jump_table, \"aw\" \n\t" - " .align 3 \n\t" - " .long 1b - ., %l[l_yes] - . \n\t" - " .quad %c0 - . \n\t" - " .popsection \n\t" - : : "i"(&((char *)key)[branch]) : : l_yes); - + JUMP_TABLE_ENTRY(k, l_yes) + ); return false; l_yes: return true; |