s390: get rid of exit_thread()

exit_thread() is empty now. Therefore remove it and get rid of a
pointless branch.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 48af970..2784ca9 100644 (file)
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -142,7 +142,6 @@ config S390
        select HAVE_DYNAMIC_FTRACE
        select HAVE_DYNAMIC_FTRACE_WITH_REGS
        select HAVE_EFFICIENT_UNALIGNED_ACCESS
-       select HAVE_EXIT_THREAD
        select HAVE_FTRACE_MCOUNT_RECORD
        select HAVE_FUNCTION_GRAPH_TRACER
        select HAVE_FUNCTION_TRACER

diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 0ecadd3..080c851 100644 (file)
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -43,13 +43,6 @@ asmlinkage void ret_from_fork(void) asm ("ret_from_fork");
 
 extern void kernel_thread_starter(void);
 
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(struct task_struct *tsk)
-{
-}
-
 void flush_thread(void)
 {
 }