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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-12-31 00:14:15 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-01-06 09:46:51 +0900 |
| commit | e9666d10a5677a494260d60d1fa0b73cc7646eb3 (patch) | |
| tree | fd609e683efff32ed6cc1458e20c40969328a33e /arch/xtensa/kernel/jump_label.c | |
| parent | 72d3ebb929de339f991fc49b58942d2d5ecdb753 (diff) | |
| download | blackbird-obmc-linux-e9666d10a5677a494260d60d1fa0b73cc7646eb3.tar.gz blackbird-obmc-linux-e9666d10a5677a494260d60d1fa0b73cc7646eb3.zip | |
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/xtensa/kernel/jump_label.c')
| -rw-r--r-- | arch/xtensa/kernel/jump_label.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/xtensa/kernel/jump_label.c b/arch/xtensa/kernel/jump_label.c index d108f721c116..61cf6497a646 100644 --- a/arch/xtensa/kernel/jump_label.c +++ b/arch/xtensa/kernel/jump_label.c @@ -10,8 +10,6 @@ #include <asm/cacheflush.h> -#ifdef HAVE_JUMP_LABEL - #define J_OFFSET_MASK 0x0003ffff #define J_SIGN_MASK (~(J_OFFSET_MASK >> 1)) @@ -95,5 +93,3 @@ void arch_jump_label_transform(struct jump_entry *e, patch_text(jump_entry_code(e), &insn, JUMP_LABEL_NOP_SIZE); } - -#endif /* HAVE_JUMP_LABEL */ |
