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authorPeter Zijlstra <peterz@infradead.org>2021-05-06 22:33:58 +0300
committerIngo Molnar <mingo@kernel.org>2021-05-12 15:54:55 +0300
commitfa5e5dc39669b4427830c546ede8709323b8276c (patch)
tree9277ff40e9c2908a6a78b8e887c0740cc5a86251 /include/linux/jump_label.h
parentf9510fa9caaf8229381d5f86ba0774bf1a6ca39b (diff)
downloadlinux-fa5e5dc39669b4427830c546ede8709323b8276c.tar.xz
jump_label, x86: Introduce jump_entry_size()
This allows architectures to have variable sized jumps. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20210506194157.786777050@infradead.org
Diffstat (limited to 'include/linux/jump_label.h')
-rw-r--r--include/linux/jump_label.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index 05f5554d860f..8c45f58292ac 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -176,6 +176,15 @@ static inline void jump_entry_set_init(struct jump_entry *entry)
entry->key |= 2;
}
+static inline int jump_entry_size(struct jump_entry *entry)
+{
+#ifdef JUMP_LABEL_NOP_SIZE
+ return JUMP_LABEL_NOP_SIZE;
+#else
+ return arch_jump_entry_size(entry);
+#endif
+}
+
#endif
#endif