Thread (6 messages) flat view 6 messages, 5 authors, 2019-03-20
STALE2736d

[PATCH] Disable kcov for slb routines.

From: Mahesh J Salgaonkar <hidden>
Date: 2019-03-04 08:28:26
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Linus Torvalds

From: Mahesh Salgaonkar <redacted>

The kcov instrumentation inside SLB routines causes duplicate SLB entries
to be added resulting into SLB multihit machine checks.
Disable kcov instrumentation on slb.o

Signed-off-by: Mahesh Salgaonkar <redacted>
---
 arch/powerpc/mm/Makefile |    1 +
 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
index d4d32e229ace..f9cb40684746 100644
--- a/arch/powerpc/mm/Makefile
+++ b/arch/powerpc/mm/Makefile
@@ -60,3 +60,4 @@ obj-$(CONFIG_PPC_MEM_KEYS)	+= pkeys.o
 # This is necessary for booting with kcov enabled on book3e machines
 KCOV_INSTRUMENT_tlb_nohash.o := n
 KCOV_INSTRUMENT_fsl_booke_mmu.o := n
+KCOV_INSTRUMENT_slb.o := n
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