[PARISC] Update pdc console from parisc tree
Get rid of some unnecessary includes
Remove a layer of macro indirection around pdc_console_device
Delete pdc_console_die() as it is unused
Avoid double-printing on panic by clearing CON_PRINTBUFFER rather than
setting con_start to be log_end
Make con_start and log_end static again
Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 01f676d..215d78c 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -41,7 +41,7 @@
/* Define EARLY_BOOTUP_DEBUG to debug kernel related boot problems.
* On production kernels EARLY_BOOTUP_DEBUG should be undefined. */
-#undef EARLY_BOOTUP_DEBUG
+#define EARLY_BOOTUP_DEBUG
#include <linux/config.h>
@@ -49,14 +49,8 @@
#include <linux/console.h>
#include <linux/string.h>
#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
#include <linux/major.h>
#include <linux/tty.h>
-#include <asm/page.h>
-#include <asm/types.h>
-#include <asm/system.h>
#include <asm/pdc.h> /* for iodc_call() proto and friends */
@@ -96,7 +90,6 @@
}
#if defined(CONFIG_PDC_CONSOLE)
-#define PDC_CONSOLE_DEVICE pdc_console_device
static struct tty_driver * pdc_console_device (struct console *c, int *index)
{
extern struct tty_driver console_driver;
@@ -104,22 +97,19 @@
return &console_driver;
}
#else
-#define PDC_CONSOLE_DEVICE NULL
+#define pdc_console_device NULL
#endif
static struct console pdc_cons = {
.name = "ttyB",
.write = pdc_console_write,
- .device = PDC_CONSOLE_DEVICE,
+ .device = pdc_console_device,
.setup = pdc_console_setup,
- .flags = CON_BOOT|CON_PRINTBUFFER|CON_ENABLED,
+ .flags = CON_BOOT | CON_PRINTBUFFER | CON_ENABLED,
.index = -1,
};
static int pdc_console_initialized;
-extern unsigned long con_start; /* kernel/printk.c */
-extern unsigned long log_end; /* kernel/printk.c */
-
static void pdc_console_init_force(void)
{
@@ -146,27 +136,11 @@
}
-/* Unregister the pdc console with the printk console layer */
-void pdc_console_die(void)
-{
- if (!pdc_console_initialized)
- return;
- --pdc_console_initialized;
-
- printk(KERN_INFO "Switching from PDC console\n");
-
- /* Don't repeat what we've already printed */
- con_start = log_end;
-
- unregister_console(&pdc_cons);
-}
-
-
/*
* Used for emergencies. Currently only used if an HPMC occurs. If an
* HPMC occurs, it is possible that the current console may not be
- * properly initialed after the PDC IO reset. This routine unregisters all
- * of the current consoles, reinitializes the pdc console and
+ * properly initialised after the PDC IO reset. This routine unregisters
+ * all of the current consoles, reinitializes the pdc console and
* registers it.
*/
@@ -177,13 +151,13 @@
if (pdc_console_initialized)
return;
+ /* If we've already seen the output, don't bother to print it again */
+ if (console_drivers != NULL)
+ pdc_cons.flags &= ~CON_PRINTBUFFER;
+
while ((console = console_drivers) != NULL)
unregister_console(console_drivers);
- /* Don't repeat what we've already printed */
- con_start = log_end;
-
/* force registering the pdc console */
pdc_console_init_force();
}
-