s390/ftrace: remove check of obsolete variable function_trace_stop

Remove check of obsolete variable function_trace_stop as requested by
Steven Rostedt.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

3 files changed, 3 insertions, 11 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index bb63499fc5d3..f5af5f6ef0f4 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -116,7 +116,6 @@ config S390
         select HAVE_FTRACE_MCOUNT_RECORD
         select HAVE_FUNCTION_GRAPH_TRACER
         select HAVE_FUNCTION_TRACER
-        select HAVE_FUNCTION_TRACE_MCOUNT_TEST
         select HAVE_FUTEX_CMPXCHG if FUTEX
         select HAVE_KERNEL_BZIP2
         select HAVE_KERNEL_GZIP
diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S
index 08dcf21cb8df..433c6dbfa442 100644
--- a/arch/s390/kernel/mcount.S
+++ b/arch/s390/kernel/mcount.S
@@ -21,13 +21,9 @@ ENTRY(_mcount)
 ENTRY(ftrace_caller)
 #endif
         stm     %r2,%r5,16(%r15)
-        bras    %r1,2f
+        bras    %r1,1f
 0:      .long   ftrace_trace_function
-1:      .long   function_trace_stop
-2:      l       %r2,1b-0b(%r1)
-        icm     %r2,0xf,0(%r2)
-        jnz     3f
-        st      %r14,56(%r15)
+1:      st      %r14,56(%r15)
         lr      %r0,%r15
         ahi     %r15,-96
         l       %r3,100(%r15)
@@ -50,7 +46,7 @@ ENTRY(ftrace_graph_caller)
 #endif
         ahi     %r15,96
         l       %r14,56(%r15)
-3:      lm      %r2,%r5,16(%r15)
+        lm      %r2,%r5,16(%r15)
         br      %r14
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
diff --git a/arch/s390/kernel/mcount64.S b/arch/s390/kernel/mcount64.S
index 1c52eae3396a..c67a8bf0fd9a 100644
--- a/arch/s390/kernel/mcount64.S
+++ b/arch/s390/kernel/mcount64.S
@@ -20,9 +20,6 @@ ENTRY(_mcount)
 
 ENTRY(ftrace_caller)
 #endif
-        larl    %r1,function_trace_stop
-        icm     %r1,0xf,0(%r1)
-        bnzr    %r14
         stmg    %r2,%r5,32(%r15)
         stg     %r14,112(%r15)
         lgr     %r1,%r15