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[142.162.113.180]) by smtp.gmail.com with ESMTPSA id 27sm3676195qtu.71.2019.10.29.05.35.58 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 29 Oct 2019 05:35:58 -0700 (PDT) Received: from jgg by mlx.ziepe.ca with local (Exim 4.90_1) (envelope-from ) id 1iPQj7-0004ib-GH; Tue, 29 Oct 2019 09:35:57 -0300 Date: Tue, 29 Oct 2019 09:35:57 -0300 From: Jason Gunthorpe To: Mike Kravetz Cc: "Ben Dooks (Codethink)" , linux-kernel@lists.codethink.co.uk, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton Subject: Re: [PATCH] mm: huge_pte_offset() returns pte_t *, not integer Message-ID: <20191029123557.GA6128@ziepe.ca> References: <20191016095111.29163-1-ben.dooks@codethink.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Oct 28, 2019 at 02:55:13PM -0700, Mike Kravetz wrote: > > diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h > > index 53fc34f930d0..e42c76aa1577 100644 > > --- a/include/linux/hugetlb.h > > +++ b/include/linux/hugetlb.h > > @@ -185,7 +185,7 @@ static inline void hugetlb_show_meminfo(void) > > #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; }) > > #define hugetlb_mcopy_atomic_pte(dst_mm, dst_pte, dst_vma, dst_addr, \ > > src_addr, pagep) ({ BUG(); 0; }) > > -#define huge_pte_offset(mm, address, sz) 0 > > +#define huge_pte_offset(mm, address, sz) (pte_t *)NULL We have recently been converting functions like this to static inlines, maybe that is more appropriate for this block of 'functions' as well? Jason