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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2014-11-24 21:00:34 -0500
committerSteven Rostedt <rostedt@goodmis.org>2014-12-01 14:08:58 -0500
commit6a06bdbf7f9c669743f58084991ba280f2925586 (patch)
tree90dcca551768f0056ba993622062c7458eef4834 /kernel/trace
parentf1ab00af816ec8e1ad53229963c863fdd6bcf222 (diff)
ftrace/fgraph/x86: Have prepare_ftrace_return() take ip as first parameter
The function graph helper function prepare_ftrace_return() which does the work to hijack the parent pointer has that parent pointer as its first parameter. Instead, if we make it the second parameter and have ip as the first parameter (self_addr), then it can use the %rdi from save_mcount_regs that loads it already. Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1411262304010.3961@nanos Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
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