linux-kernel - Re: [PATCH 13/40] staging: lustre: Dynamic LNet Configuration (DLC) show command

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Date:	Tue, 15 Dec 2015 21:19:32 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	"Simmons, James A." <simmonsja@...l.gov>
Cc:	James Simmons <jsimmons@...radead.org>,
	"devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
	Andreas Dilger <andreas.dilger@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Oleg Drokin <oleg.drokin@...el.com>,
	Amir Shehata <amir.shehata@...el.com>,
	"lustre-devel@...ts.lustre.org" <lustre-devel@...ts.lustre.org>
Subject: Re: [PATCH 13/40] staging: lustre: Dynamic LNet Configuration (DLC)
 show command

On Tue, Dec 15, 2015 at 06:14:19PM +0000, Simmons, James A. wrote:
>   
> >>  struct libcfs_ioctl_hdr {
> >>  	__u32 ioc_len;
> >> @@ -87,6 +88,13 @@ do {						    \
> >>  	data.ioc_hdr.ioc_len = sizeof(data);			\
> >>  } while (0)
> >>  
> >> +#define LIBCFS_IOC_INIT_V2(data, hdr)			\
> >> +do {							\
> >> +	memset(&(data), 0, sizeof(data));		\
> >> +	(data).hdr.ioc_version = LIBCFS_IOCTL_VERSION2;	\
> >> +	(data).hdr.ioc_len = sizeof(data);		\
> >> +} while (0)
> >> +
> >
> >Do we really need this?
> 
> Would you be okay if this was a inline function? This is used by user land and kernel space code.
> 

I try (not very hard) to sound like a broken record but this business of
sharing code with userland is a pain in the butt.  It's not used in the
kernel or in any patches you have sent.

It would look better as an inline function though so I wouldn't have
even noticed it.

regards,
dan carpenter
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