1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 9f59dd1a0af7..f801b59f2a94 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1763,6 +1763,9 @@ void __init acpi_osi_setup(char *str)
                                 osi->enable = false;
                         }
                         return;
+                } else if (*str == '!') {
+                        osi_config.default_disabling = 0;
+                        return;
                 }
                 enable = false;
         }