[ARM] pass reboot command line to arch_reset()

OMAP wishes to pass state to the boot loader upon reboot in order to
instruct it whether to wait for USB-based reflashing or not.  There is
already a facility to do this via the reboot() syscall, except we ignore
the string passed to machine_restart().

This patch fixes things to pass this string to arch_reset().  This means
that we keep the reboot mode limited to telling the kernel _how_ to
perform the reboot which should be independent of what we request the
boot loader to do.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 5 insertions, 5 deletions

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index af377c73d90b..2de14e2afdc5 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -83,7 +83,7 @@ static int __init hlt_setup(char *__unused)
 __setup("nohlt", nohlt_setup);
 __setup("hlt", hlt_setup);
 
-void arm_machine_restart(char mode)
+void arm_machine_restart(char mode, const char *cmd)
 {
         /*
          * Clean and disable cache, and turn off interrupts
@@ -100,7 +100,7 @@ void arm_machine_restart(char mode)
         /*
          * Now call the architecture specific reboot code.
          */
-        arch_reset(mode);
+        arch_reset(mode, cmd);
 
         /*
          * Whoops - the architecture was unable to reboot.
@@ -120,7 +120,7 @@ EXPORT_SYMBOL(pm_idle);
 void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
 
-void (*arm_pm_restart)(char str) = arm_machine_restart;
+void (*arm_pm_restart)(char str, const char *cmd) = arm_machine_restart;
 EXPORT_SYMBOL_GPL(arm_pm_restart);
 
 
@@ -195,9 +195,9 @@ void machine_power_off(void)
                 pm_power_off();
 }
 
-void machine_restart(char * __unused)
+void machine_restart(char *cmd)
 {
-        arm_pm_restart(reboot_mode);
+        arm_pm_restart(reboot_mode, cmd);
 }
 
 void __show_regs(struct pt_regs *regs)