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    Subject[PATCH v2 03/11] watchdog/hpwdt: Update nmi_panic message.
    Date
    Include the nmistat in the nmi_panic message to give support
    an indication why the NMI was called (e.g. a timeout or generate
    nmi button.)

    Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
    ---
    drivers/watchdog/hpwdt.c | 27 +++++++++++++++++++--------
    1 file changed, 19 insertions(+), 8 deletions(-)

    diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
    index 20a13c5d0285..6f7949ef9a23 100644
    --- a/drivers/watchdog/hpwdt.c
    +++ b/drivers/watchdog/hpwdt.c
    @@ -108,24 +108,35 @@ static int hpwdt_my_nmi(void)
    return ioread8(hpwdt_nmistat) & 0x6;
    }

    +static inline int hexdigit(int v)
    +{
    + return (v > 9) ? (v-9+'A') : (v+'0');
    +}
    +
    /*
    * NMI Handler
    */
    static int hpwdt_pretimeout(unsigned int ulReason, struct pt_regs *regs)
    {
    - if ((ulReason == NMI_UNKNOWN) && !hpwdt_my_nmi())
    + unsigned int mynmi = hpwdt_my_nmi();
    + static char panic_msg[] =
    + "00: An NMI occurred. Depending on your system the reason "
    + "for the NMI is logged in any one of the following resources:\n"
    + "1. Integrated Management Log (IML)\n"
    + "2. OA Syslog\n"
    + "3. OA Forward Progress Log\n"
    + "4. iLO Event Log";
    +
    + if ((ulReason == NMI_UNKNOWN) && !mynmi)
    return NMI_DONE;

    if (allow_kdump)
    hpwdt_stop();

    - nmi_panic(regs, "An NMI occurred. Depending on your system the reason "
    - "for the NMI is logged in any one of the following "
    - "resources:\n"
    - "1. Integrated Management Log (IML)\n"
    - "2. OA Syslog\n"
    - "3. OA Forward Progress Log\n"
    - "4. iLO Event Log");
    + panic_msg[0] = hexdigit((mynmi>>4)&0xf);
    + panic_msg[1] = hexdigit(mynmi&0xf);
    +
    + nmi_panic(regs, panic_msg);

    return NMI_HANDLED;
    }
    --
    2.13.6
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