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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/sparc
parentkallsyms: lower alignment on ARM (diff)
downloadlinux-dev-e9666d10a5677a494260d60d1fa0b73cc7646eb3.tar.xz
linux-dev-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/sparc')
-rw-r--r--arch/sparc/kernel/Makefile2
-rw-r--r--arch/sparc/kernel/jump_label.c4
2 files changed, 1 insertions, 5 deletions
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index cf8640841b7a..97c0e19263d1 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -118,4 +118,4 @@ pc--$(CONFIG_PERF_EVENTS) := perf_event.o
obj-$(CONFIG_SPARC64) += $(pc--y)
obj-$(CONFIG_UPROBES) += uprobes.o
-obj-$(CONFIG_SPARC64) += jump_label.o
+obj-$(CONFIG_JUMP_LABEL) += jump_label.o
diff --git a/arch/sparc/kernel/jump_label.c b/arch/sparc/kernel/jump_label.c
index 7f8eac51df33..a4cfaeecaf5e 100644
--- a/arch/sparc/kernel/jump_label.c
+++ b/arch/sparc/kernel/jump_label.c
@@ -9,8 +9,6 @@
#include <asm/cacheflush.h>
-#ifdef HAVE_JUMP_LABEL
-
void arch_jump_label_transform(struct jump_entry *entry,
enum jump_label_type type)
{
@@ -47,5 +45,3 @@ void arch_jump_label_transform(struct jump_entry *entry,
flushi(insn);
mutex_unlock(&text_mutex);
}
-
-#endif