Messages in this thread | | | Date | Wed, 10 Dec 2014 07:09:59 +0000 | From | Al Viro <> | Subject | Re: [PATCH] staging: lustre: Fix the warning messages about casting without __user macro |
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On Tue, Dec 09, 2014 at 10:56:12PM -0800, Shalin Mehta wrote: > From: Shalin Mehta <shalinmehta85@gmail.com> > > 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...
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