[Bug 55971] New: redefined error in 2.6.32-279.22.1.el6.x86_64 kernel

[Bug 55971] New: redefined error in 2.6.32-279.22.1.el6.x86_64 kernel

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=55971

           Summary: redefined error in 2.6.32-279.22.1.el6.x86_64 kernel
           Product: Backports project
           Version: unspecified
    Kernel Version: 2.6.32-279.22.1.el6.x86_64
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Compat
        AssignedTo: backports@vger.kernel.org
        ReportedBy: sihara@ddn.com
        Regression: No


Since RHEL6.3's security updated kernel (2.6.32-279.22.1.el6.x86_64) has
included two macros (rcu_dereference_protected and kfree_rcu) in
include/linux/rcupdate.h

These were not existed in original RHEL6.3's kernel (2.6.32-279) and even the
previous kernel of 2.6.32-279.22.1.el6.x86_64.

The other hand, these macros are defined in include/linux/compat-x.z.h.
(rcu_dereference_protected in compat-2.6.34.h and kfree_rcu in compat-3.0.h).

It needs to check in compat headers wether these macro are defined or not,
doesn't it now? otherwise we see redefined error if both kernel header and
compat headers are included for the souce codes..

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[Bug 55971] redefined error in 2.6.32-279.22.1.el6.x86_64 kernel

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=55971





--- Comment #1 from sihara@ddn.com  2013-03-31 00:58:00 ---

> It needs to check in compat headers wether these macro are defined or not,
> doesn't it now? otherwise we see redefined error if both kernel header and
> compat headers are included for the souce codes..

oops.. typo s/wether/whether/

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[Bug 55971] redefined error in 2.6.32-279.22.1.el6.x86_64 kernel

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=55971





--- Comment #2 from Andy Gospodarek <andy@greyhouse.net>  2013-04-03 14:31:26 ---
This should be pretty easy to fix.  I'll fire up a RHEL6.3 host with the latest
kernel and verify a fix.

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[Bug 55971] redefined error in 2.6.32-279.22.1.el6.x86_64 kernel

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=55971





--- Comment #3 from Andy Gospodarek <andy@greyhouse.net>  2013-04-03 21:15:49 ---
Created an attachment (id=97241)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=97241)
Initial fix for 6.3 update kernel

This has not been tested other than to be sure it compiles.  I'll post to the
list once I receive confirmation that it works for the reporter.

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[Bug 55971] redefined error in 2.6.32-279.22.1.el6.x86_64 kernel

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=55971


Andy Gospodarek <andy@greyhouse.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|backports@vger.kernel.org   |andy@greyhouse.net




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