Commit a95fc585 authored Feb 26, 2014 by Liu Ping Fan Committed by Benjamin Herrenschmidt Feb 28, 2014

powerpc/ftrace: bugfix for test_24bit_addr

The branch target should be the func addr, not the addr of func_descr_t.
So using ppc_function_entry() to generate the right target addr.

Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

parent f5295bd8

arch/powerpc/kernel/ftrace.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -74,6 +74,7 @@ ftrace_modify_code(unsigned long ip, unsigned int old, unsigned int new)
		*/
		static int test_24bit_addr(unsigned long ip, unsigned long addr)
		{
		addr = ppc_function_entry((void *)addr);

		/* use the create_branch to verify that this offset can be branched */
		return create_branch((unsigned int *)ip, addr, 0);