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authorHeiko Carstens <heiko.carstens@de.ibm.com>2016-01-18 13:12:19 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2016-01-19 12:14:03 +0100
commit9cb1ccecb69d133e014b7be4de2609f689398c07 (patch)
tree1f1c79f80ad49efc0de749b4d8bc88a9135cd1da /arch/s390/kernel/ftrace.c
parentfecc868a668774b0fc666728c3f5d9f6fceefe64 (diff)
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s390: remove all usages of PSW_ADDR_INSN
Yet another leftover from the 31 bit era. The usual operation "y = x & PSW_ADDR_INSN" with the PSW_ADDR_INSN mask is a nop for CONFIG_64BIT. Therefore remove all usages and hope the code is a bit less confusing. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Diffstat (limited to 'arch/s390/kernel/ftrace.c')
-rw-r--r--arch/s390/kernel/ftrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index e0eaf11134b4..0f7bfeba6da6 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -203,7 +203,7 @@ unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip)
goto out;
if (unlikely(atomic_read(&current->tracing_graph_pause)))
goto out;
- ip = (ip & PSW_ADDR_INSN) - MCOUNT_INSN_SIZE;
+ ip -= MCOUNT_INSN_SIZE;
trace.func = ip;
trace.depth = current->curr_ret_stack + 1;
/* Only trace if the calling function expects to. */
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