Signed-off-by: Naveen N. Rao <naveen.n....@linux.vnet.ibm.com>
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/error-injection.h | 9 +++++++++
arch/powerpc/include/asm/ptrace.h | 5 +++++
3 files changed, 15 insertions(+)
create mode 100644 arch/powerpc/include/asm/error-injection.h
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 23247fa551e7..ed1ab693f945 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -194,6 +194,7 @@ config PPC
select HAVE_EBPF_JIT if PPC64
select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN &&
POWER7_CPU)
select HAVE_FTRACE_MCOUNT_RECORD
+ select HAVE_FUNCTION_ERROR_INJECTION
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select HAVE_GCC_PLUGINS
diff --git a/arch/powerpc/include/asm/error-injection.h
b/arch/powerpc/include/asm/error-injection.h
new file mode 100644
index 000000000000..b596eca04ef9
--- /dev/null
+++ b/arch/powerpc/include/asm/error-injection.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ERROR_INJECTION_H
+#define _ASM_ERROR_INJECTION_H
+
+#include <asm-generic/error-injection.h>
+
+#define ARCH_FUNC_RET "blr"
+
+#endif /* _ASM_ERROR_INJECTION_H */
diff --git a/arch/powerpc/include/asm/ptrace.h
b/arch/powerpc/include/asm/ptrace.h
index e4923686e43a..c0705296c2f0 100644
--- a/arch/powerpc/include/asm/ptrace.h
+++ b/arch/powerpc/include/asm/ptrace.h
@@ -101,6 +101,11 @@ static inline long regs_return_value(struct pt_regs *regs)
return -regs->gpr[3];
}
+static inline void regs_set_return_value(struct pt_regs *regs, unsigned long
rc)
+{
+ regs->gpr[3] = rc;
+}
+
#ifdef __powerpc64__
#define user_mode(regs) ((((regs)->msr) >> MSR_PR_LG) & 0x1)
#else
--
2.17.0
