perf/x86/ibs: Fix undefined reference to `get_ibs_caps'
Fixing i386 allnoconfig built errors:
arch/x86/built-in.o: In function `amd_pmu_hw_config':
perf_event_amd.c:(.text+0xc3e1): undefined reference to `get_ibs_caps'
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index 4e40a64..588f52e 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -188,7 +188,11 @@
#define IBS_OP_MAX_CNT_EXT 0x007FFFFFULL /* not a register bit mask */
#define IBS_RIP_INVALID (1ULL<<38)
+#ifdef CONFIG_X86_LOCAL_APIC
extern u32 get_ibs_caps(void);
+#else
+static inline u32 get_ibs_caps(void) { return 0; }
+#endif
#ifdef CONFIG_PERF_EVENTS
extern void perf_events_lapic_init(void);