[PATCH] ftrace: remove unused pointer ftrace_swapper_pid

From: Colin King
Date: Thu Aug 09 2018 - 08:56:15 EST

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

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=]

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
kernel/trace/ftrace.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index caf9cbf35816..2cc008cfbd4f 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1049,8 +1049,6 @@ static __init void ftrace_profile_tracefs(struct dentry *d_tracer)

-static struct pid * const ftrace_swapper_pid = &init_struct_pid;
static int ftrace_graph_active;