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Message-ID: <20080618194917.GC2741@infomag.infomag.iguana.be>
Date: Wed, 18 Jun 2008 21:49:17 +0200
From: Wim Van Sebroeck <wim@...ana.be>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>,
Thomas Mingarelli <Thomas.Mingarelli@...com>
Subject: [WATCHDOG] v2.6.26 hpwdt.c fixes
Hi Linus,
Please pull from 'master' branch of
git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
or if master.kernel.org hasn't synced up yet:
master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
This will update the following files:
drivers/watchdog/Makefile | 1 +
drivers/watchdog/hpwdt.c | 35 +++++++++++++++++++----------------
2 files changed, 20 insertions(+), 16 deletions(-)
with these Changes:
Author: Wim Van Sebroeck <wim@...ana.be>
Date: Wed Jun 18 16:22:48 2008 +0000
Revert "[WATCHDOG] hpwdt: Fix NMI handling."
The old setup works better.
Signed-off-by: Thomas Mingarelli <Thomas.Mingarelli@...com>
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
Author: Thomas Mingarelli <Thomas.Mingarelli@...com>
Date: Thu Jun 12 20:20:32 2008 +0000
[WATCHDOG] hpwdt: Add CFLAGS to get driver working
To get this driver working we need the CFLAGS_hpwdt.o += -O in the Makefile.
Signed-off-by: Thomas Mingarelli <Thomas.Mingarelli@...com>
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
Author: Thomas Mingarelli <Thomas.Mingarelli@...com>
Date: Thu Jun 12 20:20:32 2008 +0000
Revert "[WATCHDOG] make watchdog/hpwdt.c:asminline_call() static"
The driver needs the asmlinkage tag and the CFLAGS line in the Makefile.
Without it the driver doesn't work.
Signed-off-by: Thomas Mingarelli <Thomas.Mingarelli@...com>
Signed-off-by: Wim Van Sebroeck <wim@...ana.be>
The Changes can also be looked at on:
http://www.kernel.org/git/?p=linux/kernel/git/wim/linux-2.6-watchdog.git;a=summary
For completeness, I added the overal diff below.
Greetings,
Wim.
================================================================================
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 25b352b..8662a6b 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -68,6 +68,7 @@ obj-$(CONFIG_WAFER_WDT) += wafer5823wdt.o
obj-$(CONFIG_I6300ESB_WDT) += i6300esb.o
obj-$(CONFIG_ITCO_WDT) += iTCO_wdt.o iTCO_vendor_support.o
obj-$(CONFIG_IT8712F_WDT) += it8712f_wdt.o
+CFLAGS_hpwdt.o += -O
obj-$(CONFIG_HP_WATCHDOG) += hpwdt.o
obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 6a63535..2686f3e 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -145,8 +145,8 @@ MODULE_DEVICE_TABLE(pci, hpwdt_devices);
#define HPWDT_ARCH 32
-static void asminline_call(struct cmn_registers *pi86Regs,
- unsigned long *pRomEntry)
+asmlinkage void asminline_call(struct cmn_registers *pi86Regs,
+ unsigned long *pRomEntry)
{
asm("pushl %ebp \n\t"
"movl %esp, %ebp \n\t"
@@ -333,8 +333,8 @@ static int __devinit detect_cru_service(void)
#define HPWDT_ARCH 64
-static void asminline_call(struct cmn_registers *pi86Regs,
- unsigned long *pRomEntry)
+asmlinkage void asminline_call(struct cmn_registers *pi86Regs,
+ unsigned long *pRomEntry)
{
asm("pushq %rbp \n\t"
"movq %rsp, %rbp \n\t"
@@ -418,20 +418,23 @@ static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason,
static unsigned long rom_pl;
static int die_nmi_called;
- if (ulReason == DIE_NMI || ulReason == DIE_NMI_IPI) {
- spin_lock_irqsave(&rom_lock, rom_pl);
- if (!die_nmi_called)
- asminline_call(&cmn_regs, cru_rom_addr);
- die_nmi_called = 1;
- spin_unlock_irqrestore(&rom_lock, rom_pl);
- if (cmn_regs.u1.ral != 0) {
- panic("An NMI occurred, please see the Integrated "
- "Management Log for details.\n");
- }
+ if (ulReason != DIE_NMI && ulReason != DIE_NMI_IPI)
+ return NOTIFY_OK;
+
+ spin_lock_irqsave(&rom_lock, rom_pl);
+ if (!die_nmi_called)
+ asminline_call(&cmn_regs, cru_rom_addr);
+ die_nmi_called = 1;
+ spin_unlock_irqrestore(&rom_lock, rom_pl);
+ if (cmn_regs.u1.ral == 0) {
+ printk(KERN_WARNING "hpwdt: An NMI occurred, "
+ "but unable to determine source.\n");
+ } else {
+ panic("An NMI occurred, please see the Integrated "
+ "Management Log for details.\n");
}
- die_nmi_called = 0;
- return NOTIFY_DONE;
+ return NOTIFY_STOP;
}
/*
--
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