From: Chuansheng Liu <[email protected]>
Subject: kernel/reboot.c: re-enable the function of variable reboot_default
1b3a5d02ee07 ("reboot: move arch/x86 reboot= handling to generic kernel")
did some cleanup for reboot= command line, but it made the reboot_default
inoperative.
The default value of variable reboot_default should be 1, and if command
line reboot= is not set, system will use the default reboot mode.
[[email protected]: fix comment layout]
Signed-off-by: Li Fei <[email protected]>
Signed-off-by: liu chuansheng <[email protected]>
Acked-by: Robin Holt <[email protected]>
Cc: <[email protected]> [3.11.x]
Signed-off-by: Andrew Morton <[email protected]>
---
kernel/reboot.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff -puN
kernel/reboot.c~kernel-rebootc-re-enable-the-function-of-variable-reboot_default
kernel/reboot.c
---
a/kernel/reboot.c~kernel-rebootc-re-enable-the-function-of-variable-reboot_default
+++ a/kernel/reboot.c
@@ -32,7 +32,14 @@ EXPORT_SYMBOL(cad_pid);
#endif
enum reboot_mode reboot_mode DEFAULT_REBOOT_MODE;
-int reboot_default;
+/*
+ * 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.
+ */
+int reboot_default = 1;
int reboot_cpu;
enum reboot_type reboot_type = BOOT_ACPI;
int reboot_force;
_
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