From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01998C48BDF for ; Fri, 18 Jun 2021 17:09:29 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9A564610C7 for ; Fri, 18 Jun 2021 17:09:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A564610C7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 0C79A6B006E; Fri, 18 Jun 2021 13:09:28 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 078A76B0071; Fri, 18 Jun 2021 13:09:28 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E5B556B0072; Fri, 18 Jun 2021 13:09:27 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0116.hostedemail.com [216.40.44.116]) by kanga.kvack.org (Postfix) with ESMTP id AF6446B006E for ; Fri, 18 Jun 2021 13:09:27 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 5527A8249980 for ; Fri, 18 Jun 2021 17:09:27 +0000 (UTC) X-FDA: 78267480774.28.AA32397 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf01.hostedemail.com (Postfix) with ESMTP id 033FE5001715 for ; Fri, 18 Jun 2021 17:09:26 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 91D47610C7; Fri, 18 Jun 2021 17:09:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624036166; bh=b5gmVem1n9PdndB7qPimXYdweinRRlwrihwid/+7nIk=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=nL6qFK0AjkD+62nplMU8YZkN5fNcCjfSdeyL+YKHcwMc/wcYKM78OepwwePtlCP9K QnnLnSCZCjYuyG3mFzh7wiYahyNjbdFE6m/TxZJYIzL88kx2veCvikS6mqZTZ8+mB6 TtwONCuEWV8jMXNEMlLZcV1kkiuxvjkJVWaU/hGTJ4oQtw0X557Atd/NmOJWtOFRpY iTMJglFq1E5WIzJ1lGOMPt3WoUAYrcOKqRvLuOsKWv6bLQJT+uQgK0R5paYTKxR72U y5Bu5/aWblUkAND0ciwEl1Sm5ht+jC2XJ8D3fV61IaafuSzAKT4q/fclTt9fK/qcXz nYtxHDqVm3FgQ== Subject: Re: [linux-next:master 9419/10007] drivers/mtd/nand/raw/arasan-nand-controller.c:1453:33: warning: shift count >= width of type To: Miquel Raynal , kernel test robot Cc: kbuild-all@lists.01.org, clang-built-linux@googlegroups.com, Linux Memory Management List References: <202106161802.0TPrXeZY-lkp@intel.com> <20210618094651.2a767516@xps13> From: Nathan Chancellor Message-ID: <6c5d6e01-1530-acc2-9737-491bda391ddf@kernel.org> Date: Fri, 18 Jun 2021 10:09:22 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210618094651.2a767516@xps13> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=nL6qFK0A; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf01.hostedemail.com: domain of nathan@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=nathan@kernel.org X-Stat-Signature: h18dqjshbycfos74dycwmtgnkaqpj6mc X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 033FE5001715 X-HE-Tag: 1624036166-904665 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 6/18/2021 12:46 AM, Miquel Raynal wrote: > Hello, > > kernel test robot wrote on Wed, 16 Jun 2021 18:33:22 > +0800: > >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master >> head: 19ae1f2bd9c091059f80646604ccef8a1e614f57 >> commit: 236fd3e0427070413e7059dc3c52c3f9c89f7cc0 [9419/10007] Merge remote-tracking branch 'nand/nand/next' >> config: riscv-randconfig-r013-20210615 (attached as .config) >> compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 64720f57bea6a6bf033feef4a5751ab9c0c3b401) >> reproduce (this is a W=1 build): >> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross >> chmod +x ~/bin/make.cross >> # install riscv cross compiling tool for clang build >> # apt-get install binutils-riscv64-linux-gnu >> # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=236fd3e0427070413e7059dc3c52c3f9c89f7cc0 >> git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git >> git fetch --no-tags linux-next master >> git checkout 236fd3e0427070413e7059dc3c52c3f9c89f7cc0 >> # save the attached .config to linux build tree >> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv >> >> If you fix the issue, kindly add following tag as appropriate >> Reported-by: kernel test robot >> >> All warnings (new ones prefixed by >>): >> >> In file included from drivers/mtd/nand/raw/arasan-nand-controller.c:17: >> In file included from include/linux/dma-mapping.h:10: >> In file included from include/linux/scatterlist.h:8: >> In file included from include/linux/mm.h:33: >> In file included from include/linux/pgtable.h:6: >> arch/riscv/include/asm/pgtable.h:521:9: error: implicit declaration of function 'pfn_pmd' [-Werror,-Wimplicit-function-declaration] >> return pfn_pmd(page_to_pfn(page), prot); >> ^ >> arch/riscv/include/asm/pgtable.h:521:9: note: did you mean 'pfn_pgd'? >> arch/riscv/include/asm/pgtable.h:222:21: note: 'pfn_pgd' declared here >> static inline pgd_t pfn_pgd(unsigned long pfn, pgprot_t prot) >> ^ >> arch/riscv/include/asm/pgtable.h:521:17: error: implicit declaration of function 'page_to_section' [-Werror,-Wimplicit-function-declaration] >> return pfn_pmd(page_to_pfn(page), prot); >> ^ >> include/asm-generic/memory_model.h:81:21: note: expanded from macro 'page_to_pfn' >> #define page_to_pfn __page_to_pfn >> ^ >> include/asm-generic/memory_model.h:64:14: note: expanded from macro '__page_to_pfn' >> int __sec = page_to_section(__pg); \ >> ^ >> arch/riscv/include/asm/pgtable.h:521:17: note: did you mean '__nr_to_section'? >> include/asm-generic/memory_model.h:81:21: note: expanded from macro 'page_to_pfn' >> #define page_to_pfn __page_to_pfn >> ^ >> include/asm-generic/memory_model.h:64:14: note: expanded from macro '__page_to_pfn' >> int __sec = page_to_section(__pg); \ >> ^ >> include/linux/mmzone.h:1314:35: note: '__nr_to_section' declared here >> static inline struct mem_section *__nr_to_section(unsigned long nr) >> ^ >> In file included from drivers/mtd/nand/raw/arasan-nand-controller.c:17: >> In file included from include/linux/dma-mapping.h:10: >> In file included from include/linux/scatterlist.h:8: >> In file included from include/linux/mm.h:33: >> In file included from include/linux/pgtable.h:6: >> arch/riscv/include/asm/pgtable.h:521:9: error: returning 'int' from a function with incompatible result type 'pmd_t' >> return pfn_pmd(page_to_pfn(page), prot); >> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> In file included from drivers/mtd/nand/raw/arasan-nand-controller.c:17: >> In file included from include/linux/dma-mapping.h:10: >> In file included from include/linux/scatterlist.h:8: >> include/linux/mm.h:1552:29: error: static declaration of 'page_to_section' follows non-static declaration >> static inline unsigned long page_to_section(const struct page *page) >> ^ >> arch/riscv/include/asm/pgtable.h:521:17: note: previous implicit declaration is here >> return pfn_pmd(page_to_pfn(page), prot); >> ^ >> include/asm-generic/memory_model.h:81:21: note: expanded from macro 'page_to_pfn' >> #define page_to_pfn __page_to_pfn >> ^ >> include/asm-generic/memory_model.h:64:14: note: expanded from macro '__page_to_pfn' >> int __sec = page_to_section(__pg); \ >> ^ >>>> drivers/mtd/nand/raw/arasan-nand-controller.c:1453:33: warning: shift count >= width of type [-Wshift-count-overflow] >> ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); >> ^~~~~~~~~~~~~~~~ >> include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' >> #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) >> ^ ~~~ >> 1 warning and 4 errors generated. > > I'm not sure to understand what the proper fix here. I am also unable > to reproduce the warning with the above steps. > I think this warning shows up because of the other errors that are present in the build log. I do not think there is anything for you to do about this warning. Cheers, Nathan