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From: Ayman El-Khashab <ayman@elkhashab.com>
To: linuxppc-dev@ozlabs.org
Subject: grasping why mpt2sas fails with BITS_PER_LONG conditional
Date: Wed, 13 Jul 2011 08:02:08 -0500	[thread overview]
Message-ID: <20110713130208.GA15267@crust.elkhashab.com> (raw)

I've had problems with the mpt2sas driver
(drivers/scsi/mpt2sas/mpt2sas_base.c) when using it on my
ppc44x.  Basically, there is a check in the code for
BITS_PER_LONG and certain code is executed if it is 64 vs 32
bit.  I am guessing it is a problem with the driver but it
only shows up on powerpc.  If i force it to take the 64 bit
path it works fine, but if I let the preprocessor decide it
will take the 32 bit path and fail later.  I am not
configuring my kernel as 64 bit, but I am guessing this has
to do with the 36 bit plb bus on these parts.

can somebody enlighten me as to what the right thing to do
here is?

thanks
ayman

             reply	other threads:[~2011-07-13 13:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-13 13:02 Ayman El-Khashab [this message]
2011-07-13 13:20 ` grasping why mpt2sas fails with BITS_PER_LONG conditional Josh Boyer

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