ftrace: Look up the address of return_to_handler() using helpers
authorNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Thu, 5 Sep 2019 18:20:28 +0000 (23:50 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 18 Sep 2019 02:24:47 +0000 (12:24 +1000)
commita3db31ff6ce31f5a544a66b61613a098029031cc
tree79e0f34cdac6861674298bfe2b6f5cf8a7ecd4ce
parente7ca44ed3ba77fc26cf32650bb71584896662474
ftrace: Look up the address of return_to_handler() using helpers

This ensures that we use the right address on architectures that use
function descriptors.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8f6f14d192a994008ac370ce14036bbe67224c7d.1567707399.git.naveen.n.rao@linux.vnet.ibm.com
kernel/trace/fgraph.c