linux-kernel - Re: [ofa-general] [PATCH 1/5] ehca: Supports large page MRs

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Message-ID: <OFDBEFA17C.9FE35C61-ONC125731F.002DE742-C125731F.002E0843@de.ibm.com>
Date:	Sat, 21 Jul 2007 10:22:54 +0200
From:	Hoang-Nam Nguyen <HNGUYEN@...ibm.com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	general-bounces@...ts.openfabrics.org,
	Hoang-Nam Nguyen <hnguyen@...ux.vnet.ibm.com>,
	Joachim Fenkes <fenkes@...ibm.com>,
	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	openib-general@...nib.org,
	Stefan Roscher <stefan.roscher@...ibm.com>
Subject: Re: [ofa-general] [PATCH 1/5] ehca: Supports large page MRs

Hi Roland!
> I applied this, but I agree with checkpatch.pl:
>
>  > WARNING: externs should be avoided in .c files
>  > #227: FILE: drivers/infiniband/hw/ehca/ehca_mrmw.c:67:
>  > +extern int ehca_mr_largepage;
>  >
>  > WARNING: externs should be avoided in .c files
>  > #949: FILE: drivers/infiniband/hw/ehca/hcp_if.c:753:
>  > +   extern int ehca_debug_level;
>
> if you need to use a variable in more than one .c file, put the extern
> declaration in a common header that's included everywhere you use the
> variable, including the .c file that it is defined in.  That way the
> compiler can see if you get confused about the type of the variable.
That's true.
> When you get a chance, please post a follow-on patch to fix this.
Sure thing. Will do that for rc2.
Thanks!
Nam

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