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authorCorey Minyard <corey@minyard.net>2026-02-06 19:33:52 +0300
committerCorey Minyard <corey@minyard.net>2026-02-06 20:06:26 +0300
commitc3bb3295637cc9bf514f690941ca9a385bf30113 (patch)
treeab4e9bb951e28fcb166d58956b15448ad8bc3aad
parent52c9ee202edd21d0599ac3b5a6fe1da2a2f053e5 (diff)
downloadlinux-c3bb3295637cc9bf514f690941ca9a385bf30113.tar.xz
ipmi:si: Use a long timeout when the BMC is misbehaving
If the driver goes into HOSED state, don't reset the timeout to the short timeout in the timeout handler. Reported-by: Igor Raits <igor@gooddata.com> Closes: https://lore.kernel.org/linux-acpi/CAK8fFZ58fidGUCHi5WFX0uoTPzveUUDzT=k=AAm4yWo3bAuCFg@mail.gmail.com/ Fixes: bc3a9d217755 ("ipmi:si: Gracefully handle if the BMC is non-functional") Cc: stable@vger.kernel.org # 4.18 Signed-off-by: Corey Minyard <corey@minyard.net>
-rw-r--r--drivers/char/ipmi/ipmi_si_intf.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index ff159b1162b9..0049e3792ba1 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -1119,7 +1119,9 @@ static void smi_timeout(struct timer_list *t)
* SI_USEC_PER_JIFFY);
smi_result = smi_event_handler(smi_info, time_diff);
- if ((smi_info->io.irq) && (!smi_info->interrupt_disabled)) {
+ if (smi_info->si_state == SI_HOSED) {
+ timeout = jiffies + SI_TIMEOUT_HOSED;
+ } else if ((smi_info->io.irq) && (!smi_info->interrupt_disabled)) {
/* Running with interrupts, only do long timeouts. */
timeout = jiffies + SI_TIMEOUT_JIFFIES;
smi_inc_stat(smi_info, long_timeouts);