panic/reboot: allow specifying reboot_mode for panic only
Allow specifying reboot_mode for panic only. This is needed on systems
where ramoops is used to store panic logs, and user wants to use warm
reset to preserve those, while still having cold reset on normal
reboots.
Link: http://lkml.kernel.org/r/20190322004735.27702-1-aaro.koskinen@iki.fi
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index e63799a..3734cd8 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -14,6 +14,7 @@ struct device;
#define SYS_POWER_OFF 0x0003 /* Notify of system power off */
enum reboot_mode {
+ REBOOT_UNDEFINED = -1,
REBOOT_COLD = 0,
REBOOT_WARM,
REBOOT_HARD,
@@ -21,6 +22,7 @@ enum reboot_mode {
REBOOT_GPIO,
};
extern enum reboot_mode reboot_mode;
+extern enum reboot_mode panic_reboot_mode;
enum reboot_type {
BOOT_TRIPLE = 't',