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author | Steven Rostedt (VMware) | 2018-11-18 23:28:53 +0100 |
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committer | Steven Rostedt (VMware) | 2018-11-28 02:31:02 +0100 |
commit | fe60522ec60082a1dd735691b82c64f65d4ad15e (patch) | |
tree | 677ea5cc253d716117b0b5db4be10d856a94fe71 /arch/riscv | |
parent | parisc: function_graph: Simplify with function_graph_enter() (diff) | |
download | kernel-qcow2-linux-fe60522ec60082a1dd735691b82c64f65d4ad15e.tar.gz kernel-qcow2-linux-fe60522ec60082a1dd735691b82c64f65d4ad15e.tar.xz kernel-qcow2-linux-fe60522ec60082a1dd735691b82c64f65d4ad15e.zip |
powerpc/function_graph: Simplify with function_graph_enter()
The function_graph_enter() function does the work of calling the function
graph hook function and the management of the shadow stack, simplifying the
work done in the architecture dependent prepare_ftrace_return().
Have powerpc use the new code, and remove the shadow stack management as well as
having to set up the trace structure.
This is needed to prepare for a fix of a design bug on how the curr_ret_stack
is used.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: stable@kernel.org
Fixes: 03274a3ffb449 ("tracing/fgraph: Adjust fgraph depth before calling trace return callback")
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'arch/riscv')
0 files changed, 0 insertions, 0 deletions