Re: [PATCH 1/4] nvdimm: Add wrapper for IOCTL pass thru.

From: Dan Williams
Date: Tue Nov 10 2015 - 13:05:16 EST


On Tue, Nov 10, 2015 at 9:51 AM, Jeff Moyer <jmoyer@xxxxxxxxxx> wrote:
> Jerry Hoemann <jerry.hoemann@xxxxxxx> writes:
>
>> Add IOCTL type 'P' to denote NVDIMM_TYPE_PASSTHRU.
>
> Can't you just make passthrough a separate command? If you actually add
> the ioctl definition for passthrough (which you didn't do for some
> reason?), it looks odd:
>
> #define ND_IOCTL_PASSTHRU _IOWR(NVDIMM_TYPE_PASSTHRU,, ND_CMD_PASSTHRU, \
> struct ndn_package)
>
> Care to comment on why you chose a different type instead of specifying
> a new command?

+1 for making this just a new command number without a new top-level
number space.
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