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Date:   Sat, 2 Jun 2018 16:59:37 +0200
From:   Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
To:     Souptick Joarder <jrdr.linux@gmail.com>
Cc:     Matthew Wilcox <willy@infradead.org>,
        Al Viro <viro@zeniv.linux.org.uk>,
        Hugh Dickins <hughd@google.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Michal Hocko <mhocko@suse.com>,
        Ross Zwisler <ross.zwisler@linux.intel.com>,
        zi.yan@cs.rutgers.edu,
        "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Dan Williams <dan.j.williams@intel.com>,
        Greg KH <gregkh@linuxfoundation.org>,
        Mark Rutland <mark.rutland@arm.com>, riel@redhat.com,
        pasha.tatashin@oracle.com, jschoenh@amazon.de,
        Kate Stewart <kstewart@linuxfoundation.org>,
        David Rientjes <rientjes@google.com>, tglx@linutronix.de,
        Peter Zijlstra <peterz@infradead.org>,
        Mel Gorman <mgorman@suse.de>, yang.s@alibaba-inc.com,
        Minchan Kim <minchan@kernel.org>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        linux-kernel@vger.kernel.org, Linux-MM <linux-mm@kvack.org>
Subject: Re: [PATCH] mm: Change return type to vm_fault_t
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On Sat, Jun 02, 2018 at 08:25:29PM +0530, Souptick Joarder wrote:
>   CHECK   mm/gup.c
> mm/gup.c:394:17: error: undefined identifier '__COUNTER__'
> mm/gup.c:439:9: error: undefined identifier '__COUNTER__'
> mm/gup.c:441:9: error: undefined identifier '__COUNTER__'
> mm/gup.c:443:9: error: undefined identifier '__COUNTER__'
> mm/gup.c:508:17: error: undefined identifier '__COUNTER__'
> mm/gup.c:716:25: error: undefined identifier '__COUNTER__'
> mm/gup.c:826:17: error: undefined identifier '__COUNTER__'
> mm/gup.c:863:17: error: undefined identifier '__COUNTER__'
> mm/gup.c:865:17: error: undefined identifier '__COUNTER__'
> mm/gup.c:882:25: error: undefined identifier '__COUNTER__'
> mm/gup.c:883:25: error: undefined identifier '__COUNTER__'
> mm/gup.c:920:25: error: undefined identifier '__COUNTER__'
> ./include/linux/hugetlb.h:239:9: error: undefined identifier '__COUNTER__'

It seems you're using a rather old version of sparse.
Please use something more recent like v0.5.1 or v0.5.2.

Regards,
-- Luc