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Commit 819c67e6 authored by David Mosberger-Tang's avatar David Mosberger-Tang Committed by Tony Luck
Browse files

[IA64] Replace stale KDB-code with useful MAGIC_SYSRQ code in simserial.c 



Patch makes it possible to use the "F4" function key to do
magic sysrq in the HP Ski simulator.

Signed-off-by: default avatarDavid Mosberger-Tang <davidm@hpl.hp.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent c1ffb6a8

arch/ia64/hp/sim/simserial.c

+11 −5
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
#include <linux/module.h>

#include <linux/serial.h>

#include <linux/serialP.h>

#include <linux/sysrq.h>



#include <asm/irq.h>

#include <asm/hw_irq.h>
@@ -149,12 +150,17 @@ static void receive_chars(struct tty_struct *tty, struct pt_regs *regs) 
				seen_esc = 2;

				continue;

			} else if ( seen_esc == 2 ) {

				if ( ch == 'P' ) show_state();		/* F1 key */

#ifdef CONFIG_KDB

				if ( ch == 'S' )

					kdb(KDB_REASON_KEYBOARD, 0, (kdb_eframe_t) regs);

				if ( ch == 'P' ) /* F1 */

					show_state();

#ifdef CONFIG_MAGIC_SYSRQ

				if ( ch == 'S' ) { /* F4 */

					do

						ch = ia64_ssc(0, 0, 0, 0,

							      SSC_GETCHAR);

					while (!ch);

					handle_sysrq(ch, regs, NULL);

				}

#endif



				seen_esc = 0;

				continue;

			}