Re: [PATCH] staging: lustre: Fix the warning messages about casting without __user macro

From: Greg KH
Date: Wed Dec 10 2014 - 09:49:27 EST


On Wed, Dec 10, 2014 at 07:09:59AM +0000, Al Viro wrote:
> On Tue, Dec 09, 2014 at 10:56:12PM -0800, Shalin Mehta wrote:
> > From: Shalin Mehta <shalinmehta85@xxxxxxxxx>
> >
> > This issue is showed up while compiling with sparse. The iov_base in struct iovec struct explicitly declares that the assigned value should be user space pointer with __user macro. Where as here, the __user macro isn't used while casting.
>
> ... and pointers are not user space ones at all. Which is to say, quit
> messing with casts; it's not struct iovec. Proper fix is to replace
> it here (and in almost all places throughout drivers/staging/lustre) with
> struct kvec. And yes, such a patch had been sent. Still not applied,
> AFAICS...

Yeah, it's in the merge window and I'll pick new staging patches back up
when 3.19-rc1 is released.

thanks,

greg k-h
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