Platform pmu driver may not be used in the dump kernel.
Avoid loading it.
Signed-off-by: Madhavan Srinivasan <ma...@linux.ibm.com>
---
arch/powerpc/perf/core-book3s.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 2b79171ee185..9a009dff63b3 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -22,6 +22,8 @@
#ifdef CONFIG_PPC64
#include "internal.h"
+#include <asm/fadump.h>
+#include <asm/kexec.h>
#endif
#define BHRB_MAX_ENTRIES 32
@@ -2571,6 +2573,12 @@ static int __init init_ppc64_pmu(void)
return 0;
}
+ /*
+ * If the dump kernel is active, skip loading these drivers
+ */
+ if (is_kdump_kernel() || is_fadump_active())
+ return 0;
+
/* run through all the pmu drivers one at a time */
if (!init_power5_pmu())
return 0;
--
2.47.0
