[Bug 111731] New: mpt2sas doesn't get built

[Bug 111731] New: mpt2sas doesn't get built

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=111731

            Bug ID: 111731
           Summary: mpt2sas doesn't get built
           Product: SCSI Drivers
           Version: 2.5
    Kernel Version: 4.4.0
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
          Assignee: scsi_drivers-other@kernel-bugs.osdl.org
          Reporter: nux@li.nux.ro
        Regression: No

Hello,

It looks like 4.4.0 is not building mpt2sas modules any more.
We got bit by this while testing it (via ElRepo) on EL7.

Even though specified in the config, only mpt3sas is built.

While mpt3sas can indeed support the hardware in question (DELL/LSI H200 in my
case), dracut/mkinitrd fails to include it in the initrd, because it's looking
for mpt2sas which is missing from /lib/modules altogether.

`dracut --add-drivers` solves the problem, but this is not a graceful kernel
upgrade and ends up with unbootable OS.

More information about this issue here http://elrepo.org/bugs/view.php?id=628

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[Bug 111731] mpt2sas doesn't get built

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=111731

biosehn@yahoo.com changed:

           What    |Removed                     |Added
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                 CC|                            |biosehn@yahoo.com

--- Comment #1 from biosehn@yahoo.com ---
This related OpenSUSE bugzilla has a patch that resolves the issue. 
https://bugzilla.opensuse.org/show_bug.cgi?id=962694

Per that BZ patch has been sent upstream, so hopefully it will make it into
distributions soon but you can probably solve it manually with that patch to
dracut until dracut itself receives an official update with the patch.

The patch as listed for OpenSUSE doesn't match the line numbers for me on
CentOS7, but searching for the proceeding lines I was able to find where to
patch it manually and it worked, I now have mpt3sas built into my 4.4 initrd
(whereas previously I didn't have either mpt3sas or mpt2sas because my 3.10
only had mpt2sas).

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