Messages in this thread Patch in this message | | | Date | Wed, 18 Jun 2008 21:49:17 +0200 | From | Wim Van Sebroeck <> | Subject | [WATCHDOG] v2.6.26 hpwdt.c fixes |
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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@iguana.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@hp.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Author: Thomas Mingarelli <Thomas.Mingarelli@hp.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@hp.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Author: Thomas Mingarelli <Thomas.Mingarelli@hp.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@hp.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.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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