powerpc: Set the correct kernel taint on machine check errors.

This means the 'M' flag will work properly when the kernel prints a backtrace. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
mariux64 · Jul 6, 2015 · 27ea2c4 · 27ea2c4
1 parent 14f2118
commit 27ea2c4
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
@@ -297,6 +297,8 @@ long machine_check_early(struct pt_regs *regs)
 
 	__this_cpu_inc(irq_stat.mce_exceptions);
 
+	add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
+
 	if (cur_cpu_spec && cur_cpu_spec->machine_check_early)
 		handled = cur_cpu_spec->machine_check_early(regs);
 	return handled;