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[209.85.220.65]) by mx.google.com with SMTPS id d8sor15655766pgc.51.2019.03.18.09.21.31 for (Google Transport Security); Mon, 18 Mar 2019 09:21:31 -0700 (PDT) Received-SPF: pass (google.com: domain of jrdr.linux@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b="MWC4/3S+"; spf=pass (google.com: domain of jrdr.linux@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=jrdr.linux@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=CgwRVS2Q+Iae+lbffdt/SU+OjpN+MyifpJVYq7Y3K8k=; b=MWC4/3S+X+/VHhs7voniM9phy/o7yqCWtKuyosSnpIUCAAnZP/Mn/DsNv3XRJweEef jZRIeMihSOp1ASm83jxCAnAw3ViWzpZEBFUOSHzcpfJkGeBaG6F/TBcR6Kz4BH0AIqBf Gzh9PBQPZ8pr/EcJVjRnUxjFWMrNxn3irZNRu3wMiyf1wognYBMph+ebK+gbMx7LhXoJ oV0M9D36FS81wHAnGWahxYbcx4RxJ7lvr83vXwqLdwO4IYJZouer23ny/kJ1LkOP6sHP AVVxXnLoumIaK6WbT6AKyhnGkge0WKU7awH8NUq8MTaMAlpkjQHFIeNFGlDycX5EI5GY xXFA== X-Google-Smtp-Source: APXvYqyw1Bx/onz96XVk/VzfT2P30uQI4lOEdkGn1FqYErJitQaCHsJU2FF6AK2yAnsDrfL2aeQc4A== X-Received: by 2002:a65:52c9:: with SMTP id z9mr5436469pgp.227.1552926091321; Mon, 18 Mar 2019 09:21:31 -0700 (PDT) Received: from jordon-HP-15-Notebook-PC ([106.51.18.188]) by smtp.gmail.com with ESMTPSA id h184sm24617707pfc.78.2019.03.18.09.21.29 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 18 Mar 2019 09:21:30 -0700 (PDT) Date: Mon, 18 Mar 2019 21:56:05 +0530 From: Souptick Joarder To: akpm@linux-foundation.org, mike.kravetz@oracle.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, willy@infradead.org Subject: [PATCH] include/linux/hugetlb.h: Convert to use vm_fault_t Message-ID: <20190318162604.GA31553@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) 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: kbuild produces the below warning -> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 5453a3df2a5eb49bc24615d4cf0d66b2aae05e5f commit 3d3539018d2c ("mm: create the new vm_fault_t type") reproduce: # apt-get install sparse git checkout 3d3539018d2cbd12e5af4a132636ee7fd8d43ef0 make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' >> mm/memory.c:3968:21: sparse: incorrect type in assignment (different >> base types) @@ expected restricted vm_fault_t [usertype] ret @@ >> got e] ret @@ mm/memory.c:3968:21: expected restricted vm_fault_t [usertype] ret mm/memory.c:3968:21: got int This patch will convert to return vm_fault_t type for hugetlb_fault() when CONFIG_HUGETLB_PAGE =n. Signed-off-by: Souptick Joarder --- include/linux/hugetlb.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 087fd5f4..0ee502a 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -203,7 +203,6 @@ static inline void hugetlb_show_meminfo(void) #define pud_huge(x) 0 #define is_hugepage_only_range(mm, addr, len) 0 #define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; }) -#define hugetlb_fault(mm, vma, addr, flags) ({ 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 @@ -234,6 +233,13 @@ static inline void __unmap_hugepage_range(struct mmu_gather *tlb, { BUG(); } +static inline vm_fault_t hugetlb_fault(struct mm_struct *mm, + struct vm_area_struct *vma, unsigned long address, + unsigned int flags) +{ + BUG(); + return 0; +} #endif /* !CONFIG_HUGETLB_PAGE */ /* -- 1.9.1