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authorPeter Zijlstra <peterz@infradead.org>2015-07-24 14:45:44 +0200
committerIngo Molnar <mingo@kernel.org>2015-08-03 11:34:12 +0200
commit76b235c6bcb16062d663e2ee96db0b69f2e6bc14 (patch)
tree60355848b836cd6b52228bedfbabc1631c4c905e /arch/arm64
parentf320ead76a87a9c533f681ecce3bf3241d07c47d (diff)
downloadlinux-76b235c6bcb16062d663e2ee96db0b69f2e6bc14.tar.bz2
jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}
Since we've already stepped away from ENABLE is a JMP and DISABLE is a NOP with the branch_default bits, and are going to make it even worse, rename it to make it all clearer. This way we don't mix multiple levels of logic attributes, but have a plain 'physical' name for what the current instruction patching status of a jump label is. This is a first step in removing the naming confusion that has led to a stream of avoidable bugs such as: a833581e372a ("x86, perf: Fix static_key bug in load_mm_cr4()") Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org [ Beefed up the changelog. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm64')
-rw-r--r--arch/arm64/kernel/jump_label.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/jump_label.c b/arch/arm64/kernel/jump_label.c
index 4f1fec7a46db..c2dd1ad3e648 100644
--- a/arch/arm64/kernel/jump_label.c
+++ b/arch/arm64/kernel/jump_label.c
@@ -28,7 +28,7 @@ void arch_jump_label_transform(struct jump_entry *entry,
void *addr = (void *)entry->code;
u32 insn;
- if (type == JUMP_LABEL_ENABLE) {
+ if (type == JUMP_LABEL_JMP) {
insn = aarch64_insn_gen_branch_imm(entry->code,
entry->target,
AARCH64_INSN_BRANCH_NOLINK);