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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-10 11:12:55 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-10 11:13:53 -0800
commit7483948fdd31a8642ef0288aab6f368b98d53c29 (patch)
tree031020a5553701d2aae8dddb0fa509aa65854eb1 /arch/x86/kernel/reboot.c
parent22a416c4e0f2179b57028e084ac0ed2c110333bd (diff)
parentfe250923bbbbcbccc9aa7b84d05ee7a060450534 (diff)
Merge tag 'usb-3.3-rc3' into usb-next
This is done to resolve a merge conflict with: drivers/usb/class/cdc-wdm.c and to better handle future patches for this driver as it is under active development at the moment. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel/reboot.c')
-rw-r--r--arch/x86/kernel/reboot.c36
1 files changed, 26 insertions, 10 deletions
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 37a458b521a..d840e69a853 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -39,6 +39,14 @@ static int reboot_mode;
enum reboot_type reboot_type = BOOT_ACPI;
int reboot_force;
+/* This variable is used privately to keep track of whether or not
+ * reboot_type is still set to its default value (i.e., reboot= hasn't
+ * been set on the command line). This is needed so that we can
+ * suppress DMI scanning for reboot quirks. Without it, it's
+ * impossible to override a faulty reboot quirk without recompiling.
+ */
+static int reboot_default = 1;
+
#if defined(CONFIG_X86_32) && defined(CONFIG_SMP)
static int reboot_cpu = -1;
#endif
@@ -67,6 +75,12 @@ bool port_cf9_safe = false;
static int __init reboot_setup(char *str)
{
for (;;) {
+ /* Having anything passed on the command line via
+ * reboot= will cause us to disable DMI checking
+ * below.
+ */
+ reboot_default = 0;
+
switch (*str) {
case 'w':
reboot_mode = 0x1234;
@@ -295,14 +309,6 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
DMI_MATCH(DMI_BOARD_NAME, "P4S800"),
},
},
- { /* Handle problems with rebooting on VersaLogic Menlow boards */
- .callback = set_bios_reboot,
- .ident = "VersaLogic Menlow based board",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "VersaLogic Corporation"),
- DMI_MATCH(DMI_BOARD_NAME, "VersaLogic Menlow board"),
- },
- },
{ /* Handle reboot issue on Acer Aspire one */
.callback = set_kbd_reboot,
.ident = "Acer Aspire One A110",
@@ -316,7 +322,12 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
static int __init reboot_init(void)
{
- dmi_check_system(reboot_dmi_table);
+ /* Only do the DMI check if reboot_type hasn't been overridden
+ * on the command line
+ */
+ if (reboot_default) {
+ dmi_check_system(reboot_dmi_table);
+ }
return 0;
}
core_initcall(reboot_init);
@@ -465,7 +476,12 @@ static struct dmi_system_id __initdata pci_reboot_dmi_table[] = {
static int __init pci_reboot_init(void)
{
- dmi_check_system(pci_reboot_dmi_table);
+ /* Only do the DMI check if reboot_type hasn't been overridden
+ * on the command line
+ */
+ if (reboot_default) {
+ dmi_check_system(pci_reboot_dmi_table);
+ }
return 0;
}
core_initcall(pci_reboot_init);