[Patch 0/1] [SRU Bionic][Cosmic] kernel panic in ipmi_ssif at msg_done_handler

[Manoj Iyer]

Please consider this ARM64 patch to ipmi_ssif for Cosmic and SRU for 
Bionic. 

When you boot bionic with Boot with i2c and ipmi_ssif enabled on Cavium 
ThunderX2 systems with a faulty BMC that does not return any data, and 
the code is trying to print the value if data[2], we get a kernel panic.

This was fixed upstream with commit:
commit f002612b9d86613bc6fde0a444e0095225f6053e
Author: Kamlakant Patel <kamlakant.patel at cavium.com>
Date: Tue Mar 13 16:32:27 2018 +0530

    ipmi_ssif: Fix kernel panic at msg_done_handler

The kernel with this patch was tested on a Cavium ThunderX2 system by 
me and found no regression. ipmi_ssif is only loaded on ARM64 systems, 
this issue is observed only on Cavium ThunderX2 systems with a faulty BMC. 
The fix does not impact other architectures or vendor systems. Regression 
potential is low.