[PATCH 1/3] watchdog: iTCO_wdt: Export vendorsupport

Mika Westerberg
2020-02-25T12:38:00Z

In preparation for making ->smi_res optional the iTCO_wdt driver needs
to know whether vendorsupport is being set to non-zero. For this reason
export the variable.

Signed-off-by: Mika Westerberg <mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
---
drivers/watchdog/iTCO_vendor.h | 2 ++
drivers/watchdog/iTCO_vendor_support.c | 16 +++++++++-------
2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/watchdog/iTCO_vendor.h b/drivers/watchdog/iTCO_vendor.h
index 0f7373ba10d5..69e92e692ae0 100644
--- a/drivers/watchdog/iTCO_vendor.h
+++ b/drivers/watchdog/iTCO_vendor.h
@@ -1,10 +1,12 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* iTCO Vendor Specific Support hooks */
#ifdef CONFIG_ITCO_VENDOR_SUPPORT
+extern int iTCO_vendorsupport;
extern void iTCO_vendor_pre_start(struct resource *, unsigned int);
extern void iTCO_vendor_pre_stop(struct resource *);
extern int iTCO_vendor_check_noreboot_on(void);
#else
+#define iTCO_vendorsupport 0
#define iTCO_vendor_pre_start(acpibase, heartbeat) {}
#define iTCO_vendor_pre_stop(acpibase) {}
#define iTCO_vendor_check_noreboot_on() 1
diff --git a/drivers/watchdog/iTCO_vendor_support.c b/drivers/watchdog/iTCO_vendor_support.c
index 4f1b96f59349..cf0eaa04b064 100644
--- a/drivers/watchdog/iTCO_vendor_support.c
+++ b/drivers/watchdog/iTCO_vendor_support.c
@@ -39,8 +39,10 @@
/* Broken BIOS */
#define BROKEN_BIOS 911

-static int vendorsupport;
-module_param(vendorsupport, int, 0);
+int iTCO_vendorsupport;
+EXPORT_SYMBOL(iTCO_vendorsupport);
+
+module_param_named(vendorsupport, iTCO_vendorsupport, int, 0);
MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default="
"0 (none), 1=SuperMicro Pent3, 911=Broken SMI BIOS");

@@ -152,7 +154,7 @@ static void broken_bios_stop(struct resource *smires)
void iTCO_vendor_pre_start(struct resource *smires,
unsigned int heartbeat)
{
- switch (vendorsupport) {
+ switch (iTCO_vendorsupport) {
case SUPERMICRO_OLD_BOARD:
supermicro_old_pre_start(smires);
break;
@@ -165,7 +167,7 @@ EXPORT_SYMBOL(iTCO_vendor_pre_start);

void iTCO_vendor_pre_stop(struct resource *smires)
{
- switch (vendorsupport) {
+ switch (iTCO_vendorsupport) {
case SUPERMICRO_OLD_BOARD:
supermicro_old_pre_stop(smires);
break;
@@ -178,7 +180,7 @@ EXPORT_SYMBOL(iTCO_vendor_pre_stop);

int iTCO_vendor_check_noreboot_on(void)
{
- switch (vendorsupport) {
+ switch (iTCO_vendorsupport) {
case SUPERMICRO_OLD_BOARD:
return 0;
default:
@@ -189,13 +191,13 @@ EXPORT_SYMBOL(iTCO_vendor_check_noreboot_on);

static int __init iTCO_vendor_init_module(void)
{
- if (vendorsupport == SUPERMICRO_NEW_BOARD) {
+ if (iTCO_vendorsupport == SUPERMICRO_NEW_BOARD) {
pr_warn("Option vendorsupport=%d is no longer supported, "
"please use the w83627hf_wdt driver instead\n",
SUPERMICRO_NEW_BOARD);
return -EINVAL;
}
- pr_info("vendor-support=%d\n", vendorsupport);
+ pr_info("vendor-support=%d\n", iTCO_vendorsupport);
return 0;
}

--
2.25.0