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Blackfin: ftrace: Remove check of obsolete variable function_trace_stop 

Nothing sets function_trace_stop to disable function tracing anymore.
Remove the check for it in the arch code.

Link: http://lkml.kernel.org/r/3144266.ziutPk5CNZ@vapier

Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2014-06-25 12:42:38 -04:00 committed by Steven Rostedt
parent ad515ea288
commit 6c56524101
2 changed files with 0 additions and 19 deletions
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1
arch/blackfin/Kconfig
View File

@ -18,7 +18,6 @@ config BLACKFIN
select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_TRACE_MCOUNT_TEST
select HAVE_IDE select HAVE_IDE
select HAVE_KERNEL_GZIP if RAMKERNEL select HAVE_KERNEL_GZIP if RAMKERNEL
select HAVE_KERNEL_BZIP2 if RAMKERNEL select HAVE_KERNEL_BZIP2 if RAMKERNEL

18
arch/blackfin/kernel/ftrace-entry.S
View File

@ -33,15 +33,6 @@ ENDPROC(__mcount)
* function will be waiting there. mmmm pie. * function will be waiting there. mmmm pie.
*/ */
ENTRY(_ftrace_caller) ENTRY(_ftrace_caller)
# ifdef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST
/* optional micro optimization: return if stopped */
p1.l = _function_trace_stop;
p1.h = _function_trace_stop;
r3 = [p1];
cc = r3 == 0;
if ! cc jump _ftrace_stub (bp);
# endif
/* save first/second/third function arg and the return register */ /* save first/second/third function arg and the return register */
[--sp] = r2; [--sp] = r2;
[--sp] = r0; [--sp] = r0;
@ -83,15 +74,6 @@ ENDPROC(_ftrace_caller)
/* See documentation for _ftrace_caller */ /* See documentation for _ftrace_caller */
ENTRY(__mcount) ENTRY(__mcount)
# ifdef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST
/* optional micro optimization: return if stopped */
p1.l = _function_trace_stop;
p1.h = _function_trace_stop;
r3 = [p1];
cc = r3 == 0;
if ! cc jump _ftrace_stub (bp);
# endif
/* save third function arg early so we can do testing below */ /* save third function arg early so we can do testing below */
[--sp] = r2; [--sp] = r2;