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ftrace: Remove unused pointer ftrace_swapper_pid

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Pointer ftrace_swapper_pid is defined but is never used hence it is
redundant and can be removed. The use of this variable was removed
in commit 345ddcc882d8 ("ftrace: Have set_ftrace_pid use the bitmap
like events do").

Cleans up clang warning:
warning: 'ftrace_swapper_pid' defined but not used [-Wunused-const-variable=]

Link: http://lkml.kernel.org/r/20180809125609.13142-1-colin.king@canonical.com

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Colin Ian King 2018-08-09 13:56:09 +01:00 committed by Steven Rostedt (VMware)
parent 3f1756dc21
commit b207de3ec5
1 changed files with 0 additions and 2 deletions
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2
kernel/trace/ftrace.c
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@ -1020,8 +1020,6 @@ static __init void ftrace_profile_tracefs(struct dentry *d_tracer)
}
#endif /* CONFIG_FUNCTION_PROFILER */
static struct pid * const ftrace_swapper_pid = &init_struct_pid;
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
static int ftrace_graph_active;
#else