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riscv: remove unused variable in ftrace
[ Upstream commit397182e0db
] Noticed while building kernel-4.20.0-0.rc5.git2.1.fc30 for Fedora 30/RISCV. [..] BUILDSTDERR: arch/riscv/kernel/ftrace.c: In function 'prepare_ftrace_return': BUILDSTDERR: arch/riscv/kernel/ftrace.c:135:6: warning: unused variable 'err' [-Wunused-variable] BUILDSTDERR: int err; BUILDSTDERR: ^~~ [..] Signed-off-by: David Abdurachmanov <david.abdurachmanov@gmail.com> Fixes:e949b6db51
("riscv/function_graph: Simplify with function_graph_enter()") Reviewed-by: Olof Johansson <olof@lixom.net> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -132,7 +132,6 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
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{
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unsigned long return_hooker = (unsigned long)&return_to_handler;
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unsigned long old;
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int err;
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if (unlikely(atomic_read(¤t->tracing_graph_pause)))
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return;
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