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authorMasahiro Yamada <yamada.masahiro@socionext.com>2018-12-31 00:14:15 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2019-01-06 09:46:51 +0900
commite9666d10a5677a494260d60d1fa0b73cc7646eb3 (patch)
treefd609e683efff32ed6cc1458e20c40969328a33e /arch/s390/kernel/jump_label.c
parent72d3ebb929de339f991fc49b58942d2d5ecdb753 (diff)
downloadlinux-e9666d10a5677a494260d60d1fa0b73cc7646eb3.tar.gz
jump_label: move 'asm goto' support test to Kconfig
Currently, CONFIG_JUMP_LABEL just means "I _want_ to use jump label".

The jump label is controlled by HAVE_JUMP_LABEL, which is defined
like this:

  #if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL)
  # define HAVE_JUMP_LABEL
  #endif

We can improve this by testing 'asm goto' support in Kconfig, then
make JUMP_LABEL depend on CC_HAS_ASM_GOTO.

Ugly #ifdef HAVE_JUMP_LABEL will go away, and CONFIG_JUMP_LABEL will
match to the real kernel capability.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Diffstat (limited to 'arch/s390/kernel/jump_label.c')
-rw-r--r--arch/s390/kernel/jump_label.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/s390/kernel/jump_label.c b/arch/s390/kernel/jump_label.c
index 50a1798604a8..3f10b56bd5a3 100644
--- a/arch/s390/kernel/jump_label.c
+++ b/arch/s390/kernel/jump_label.c
@@ -10,8 +10,6 @@
 #include <linux/jump_label.h>
 #include <asm/ipl.h>
 
-#ifdef HAVE_JUMP_LABEL
-
 struct insn {
 	u16 opcode;
 	s32 offset;
@@ -103,5 +101,3 @@ void arch_jump_label_transform_static(struct jump_entry *entry,
 {
 	__jump_label_transform(entry, type, 1);
 }
-
-#endif