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When excuting a command like: modprobe ipmi_si ports=0xffc0e3 type=bt The system would get an oops. The trouble here is that ipmi_si_hardcode_find_bmc() is called before ipmi_si_platform_init(), but initialization of the hard-coded device creates an IPMI platform device, which won't be initialized yet. The real trouble is that hard-coded devices aren't created with any device, and the fixup is done later. So do it right, create the hard-coded devices as normal platform devices. This required adding some new resource types to the IPMI platform code for passing information required by the hard-coded device and adding some code to remove the hard-coded platform devices on module removal. To enforce the "hard-coded devices passed by the user take priority over firmware devices" rule, some special code was added to check and see if a hard-coded device already exists. Reported-by: Yang Yingliang <yangyingliang@huawei.com> Cc: stable@vger.kernel.org # v4.15+ Signed-off-by: Corey Minyard <cminyard@mvista.com> Tested-by: Yang Yingliang <yangyingliang@huawei.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.