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Diffstat (limited to 'arch/powerpc/kernel/jump_label.c')
-rw-r--r--arch/powerpc/kernel/jump_label.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/jump_label.c b/arch/powerpc/kernel/jump_label.c
new file mode 100644
index 000000000000..368d158d665d
--- /dev/null
+++ b/arch/powerpc/kernel/jump_label.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2010 Michael Ellerman, IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/jump_label.h>
+#include <asm/code-patching.h>
+
+void arch_jump_label_transform(struct jump_entry *entry,
+ enum jump_label_type type)
+{
+ u32 *addr = (u32 *)(unsigned long)entry->code;
+
+ if (type == JUMP_LABEL_ENABLE)
+ patch_branch(addr, entry->target, 0);
+ else
+ patch_instruction(addr, PPC_INST_NOP);
+}
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