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-rw-r--r--arch/powerpc/include/asm/sections.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 916018e425c4..6fbce725c710 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -2,6 +2,8 @@
#define _ASM_POWERPC_SECTIONS_H
#ifdef __KERNEL__
+#include <linux/elf.h>
+#include <linux/uaccess.h>
#include <asm-generic/sections.h>
#ifdef __powerpc64__
@@ -16,6 +18,23 @@ static inline int in_kernel_text(unsigned long addr)
return 0;
}
+static inline int overlaps_kernel_text(unsigned long start, unsigned long end)
+{
+ return start < (unsigned long)__init_end &&
+ (unsigned long)_stext < end;
+}
+
+#undef dereference_function_descriptor
+static inline void *dereference_function_descriptor(void *ptr)
+{
+ struct ppc64_opd_entry *desc = ptr;
+ void *p;
+
+ if (!probe_kernel_address(&desc->funcaddr, p))
+ ptr = p;
+ return ptr;
+}
+
#endif
#endif /* __KERNEL__ */