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author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-11-18 17:31:44 -0500 |
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committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-11-27 20:31:16 -0500 |
commit | e949b6db51dc172a35c962bc4414ca148315fe21 (patch) | |
tree | 344c8310206d0bce35db68eb2ce138768bef69b6 /arch/s390/kernel/ftrace.c | |
parent | fe60522ec60082a1dd735691b82c64f65d4ad15e (diff) | |
download | linux-e949b6db51dc172a35c962bc4414ca148315fe21.tar.bz2 |
riscv/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 riscv 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: Greentime Hu <greentime@andestech.com>
Cc: Alan Kao <alankao@andestech.com>
Cc: stable@kernel.org
Fixes: 03274a3ffb449 ("tracing/fgraph: Adjust fgraph depth before calling trace return callback")
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'arch/s390/kernel/ftrace.c')
0 files changed, 0 insertions, 0 deletions