Re: [PATCH v2] scsi: ufs: add ioctl interface for query request

From: Arnd Bergmann
Date: Wed Oct 07 2015 - 08:38:07 EST


On Wednesday 07 October 2015 12:27:54 ygardi@xxxxxxxxxxxxxx wrote:
>
> >> +
> >> +/*
> >> + * IOCTL opcode for ufs queries has the following opcode after
> >> + * SCSI_IOCTL_GET_PCI
> >> + */
> >> +#define UFS_IOCTL_QUERY 0x5388
> >
> > Use _IOWR() to define that number with the correct argument length
>
> i'd rather leave it as is, to be compatible with the SCSI_IOCTL
> opcodes that are defined in scsi_ioctl.h

Do you mean you require this code to work on SunOS? ;-)

If not, better use the normal conventions that Linux and BSD have for
new ioctls.

Note that the 0x53xx ioctl command numbers are also used by
include/uapi/linux/cdrom.h, this one would be right in the middle
of that.

Arnd
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