[PATCH v6 13/39] powerpc/traps: add NOKPROBE_SYMBOL for sreset and mce
From: Nicholas Piggin <npiggin@gmail.com>
Date: 2021-01-15 17:25:12
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
These NMIs could fire any time including inside kprobe code, so exclude them from kprobes. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/kernel/traps.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index f3f6af3141ee..738370519937 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c@@ -517,6 +517,7 @@ void system_reset_exception(struct pt_regs *regs) /* What should we do here? We could issue a shutdown or hard reset. */ } +NOKPROBE_SYMBOL(system_reset_exception); /* * I/O accesses can cause machine checks on powermacs.
@@ -843,6 +844,7 @@ void machine_check_exception(struct pt_regs *regs) bail: if (nmi) nmi_exit(); } +NOKPROBE_SYMBOL(machine_check_exception); void SMIException(struct pt_regs *regs) {
--
2.23.0