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

From: Dan Carpenter
Date: Tue Dec 15 2015 - 13:20:23 EST


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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