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s390/perf_events: compile only for CONFIG_64BIT 

The whole hardware support is only available in zArch mode.
Fixes also this compile warning:

arch/s390/kernel/perf_cpum_cf.c: In function ‘cpumf_pmu_init’:
arch/s390/kernel/perf_cpum_cf.c:670:2: warning: left shift count >= width of type [enabled by default]

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2012-09-14 12:57:39 +02:00 committed by Martin Schwidefsky
parent 0e37b0cbb8
commit 305e4f108b
1 changed files with 4 additions and 1 deletions
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5
arch/s390/kernel/Makefile
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@ -48,8 +48,11 @@ obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
obj-$(CONFIG_FTRACE_SYSCALLS) += ftrace.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
ifdef CONFIG_64BIT
obj-$(CONFIG_PERF_EVENTS) += perf_event.o perf_cpum_cf.o
obj-$(CONFIG_64BIT) += runtime_instr.o cache.o
obj-y += runtime_instr.o cache.o
endif
# Kexec part
S390_KEXEC_OBJS := machine_kexec.o