Commit 67ac0bfe authored Oct 23, 2017 by Naveen N. Rao Committed by Michael Ellerman Nov 12, 2017

powerpc/kprobes: Blacklist emulate_update_regs() from kprobes

Commit 3cdfcbfd ("powerpc: Change analyse_instr so it doesn't
modify *regs") introduced emulate_update_regs() to perform part of what
emulate_step() was doing earlier. However, this function was not added
to the kprobes blacklist. Add it so as to prevent it from being probed.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent f72180cc

arch/powerpc/lib/sstep.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -2717,6 +2717,7 @@ void emulate_update_regs(struct pt_regs regs, struct instruction_op op)
		}
		regs->nip = next_pc;
		}
		NOKPROBE_SYMBOL(emulate_update_regs);

		/*
		* Emulate a previously-analysed load or store instruction.