From 4c418ba9695a24917a1fcfa48f7db3fd76337eb7 Mon Sep 17 00:00:00 2001
From: "Doe, YiCheng" <yicheng.doe@hp.com>
Date: Thu, 10 Mar 2011 14:00:21 -0600
Subject: [PATCH] ipmi: Fix IPMI errors due to timing problems
This patch fixes an issue in OpenIPMI module where sometimes an ABORT command
is sent after sending an IPMI request to BMC causing the IPMI request to fail.
Signed-off-by: YiCheng Doe <yicheng.doe@hp.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Tom Mingarelli <thomas.mingarelli@hp.com>
Tested-by: Andy Cress <andy.cress@us.kontron.com>
Tested-by: Mika Lansirine <Mika.Lansirinne@stonesoft.com>
Tested-by: Brian De Wolf <bldewolf@csupomona.edu>
Cc: Jean Michel Audet <Jean-Michel.Audet@ca.Kontron.com>
Cc: Jozef Sudelsky <jozef.sudolsky@elbiahosting.sk>
Acked-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/char/ipmi/ipmi_si_intf.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 7855f9f45b8e..62787e30d508 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -900,6 +900,14 @@ static void sender(void *send_info,
printk("**Enqueue: %d.%9.9d\n", t.tv_sec, t.tv_usec);
#endif
+ /*
+ * last_timeout_jiffies is updated here to avoid
+ * smi_timeout() handler passing very large time_diff
+ * value to smi_event_handler() that causes
+ * the send command to abort.
+ */
+ smi_info->last_timeout_jiffies = jiffies;
+
mod_timer(&smi_info->si_timer, jiffies + SI_TIMEOUT_JIFFIES);
if (smi_info->thread)