[PATCH AUTOSEL 3.18 12/19] perf powerpc: Fix callchain ip filtering when return address is in a register

From: Sandipan Das [ Upstream commit 9068533e4f470daf2b0f29c71d865990acd8826e ] For powerpc64, perf will filter out the second entry in the callchain, i.e. the LR value, if the return address of the function corresponding to the probed location has already been saved on its caller's stack. The

[PATCH AUTOSEL 3.18 12/19] perf powerpc: Fix callchain ip filtering when return address is in a register

From: Sandipan Das [ Upstream commit 9068533e4f470daf2b0f29c71d865990acd8826e ] For powerpc64, perf will filter out the second entry in the callchain, i.e. the LR value, if the return address of the function corresponding to the probed location has already been saved on its caller's stack. The