basic modification from way back

[powerpc.git] / drivers / acpi / blacklist.c

diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index f289fd4..3ec110c 100644 (file)
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -79,11 +79,17 @@ static int __init blacklist_by_year(void)
 {
        int year = dmi_get_year(DMI_BIOS_DATE);
        /* Doesn't exist? Likely an old system */
-       if (year == -1)
+       if (year == -1) {
+               printk(KERN_ERR PREFIX "no DMI BIOS year, "
+                       "acpi=force is required to enable ACPI\n" );
                return 1;
+       }
        /* 0? Likely a buggy new BIOS */
-       if (year == 0)
+       if (year == 0) {
+               printk(KERN_ERR PREFIX "DMI BIOS year==0, "
+                       "assuming ACPI-capable machine\n" );
                return 0;
+       }
        if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
                printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), "
                       "acpi=force is required to enable ACPI\n",