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d=linux-foundation.org; s=korg; t=1689265579; bh=CXJ4LHCRgZVINIqOiLY7Tb7XJ2dummoBkrQWHA5wWBg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=DZH2CZ12yHKdhkI1jcIV+ig3Svp4NPXmXo6tmkocIzn0DAEsNiyRJw00H3B+M5/0M zOgQd91aUuaAtpgYnlPDHK8jCfa3wIchxd6oz+L3GItADPf4IwZo65qhh6foVhKuIr jpaVX56zJWUCmOSrcJD5BoM49Lk47SiTgd5QQstI= Date: Thu, 13 Jul 2023 09:26:18 -0700 From: Andrew Morton To: kernel test robot Cc: Baoquan He , llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Niklas Schnelle , Christoph Hellwig , "Mike Rapoport (IBM)" Subject: Re: [akpm-mm:mm-unstable 93/173] drivers/clk/clk-fixed-mmio.c:33:2: error: call to undeclared function 'iounmap'; ISO C99 and later do not support implicit function declarations Message-Id: <20230713092618.9a25417dc886b4f61660fe17@linux-foundation.org> In-Reply-To: <202307131033.JgvCSVz4-lkp@intel.com> References: <202307131033.JgvCSVz4-lkp@intel.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 6FB7310001A X-Stat-Signature: k66tduhfqpbxtsj979oab9qo8zrccjkf X-Rspam-User: X-HE-Tag: 1689265581-583233 X-HE-Meta: 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 8N67Xjn3 RI4joAUt0tkPLvKhyBX5MAugUlMPYdt3KaL+dR5ZsMKmbfPzmrH5bAFOyG9ntlTeyv6j8B1a/ecOOU+aiWECrIPGX42upUIbPQEN3ZgVPylZZdJWOcnZuC3oV3aJHosH7jX6cKwehDiFmL7OY67b1ujCMWfKrgx+099+hKSSvP1PZ1NTGCJJS6j0L3Diij22ckPuC++4EwydKkVEPGjWvsb99HvzF+TH4ZTUJ+m2FTll76NThRhV9ZwXhtO/3lU//W0PcxGJuSNkz5AiNK99tUPgKKONSAMemLEkYcfI6nkr47uWQHd35fS1hQfe18E0OqPXrMc1A3TKcfcT8L7FcQe76kNZx25jSdD205M0vBuV0hxLMfMoIzMpCBzlJs2IEpy5+XF9m/LAgqgDHFMgMCkx9AB5q+sVexI5rkfzeBTvRgcxTibu7sQ+SvxK9+vNwMhJtSMOrNHdpuQaBlVeAQGi+xFL+6ZNMpr9N4MBx6DfjSNOMZg67ztUSUhD9oMDt1MUrXKSMLgYgcDyYZb4UNH30/da/kKyGL0+TkSP/iSoE7reAhAezGCczIw== 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 Thu, 13 Jul 2023 10:57:34 +0800 kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable > head: e726c62e70a70ae5536caa0aa131c5dce5c6f764 > commit: 827057ff3ce7554741d431145c3b93f1a54125fc [93/173] s390: mm: convert to GENERIC_IOREMAP > config: s390-randconfig-r033-20230713 (https://download.01.org/0day-ci/archive/20230713/202307131033.JgvCSVz4-lkp@intel.com/config) > compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) > reproduce: (https://download.01.org/0day-ci/archive/20230713/202307131033.JgvCSVz4-lkp@intel.com/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot > | Closes: https://lore.kernel.org/oe-kbuild-all/202307131033.JgvCSVz4-lkp@intel.com/ > > All errors (new ones prefixed by >>): > > In file included from drivers/clk/clk-fixed-mmio.c:13: > In file included from include/linux/io.h:13: > In file included from arch/s390/include/asm/io.h:78: > include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] > 547 | val = __raw_readb(PCI_IOBASE + addr); > | ~~~~~~~~~~ ^ Thanks. When I tried that config I got In file included from ./include/linux/io.h:13, from drivers/clk/clk-fixed-mmio.c:13: drivers/clk/clk-fixed-mmio.c: In function 'fixed_mmio_clk_setup': ./arch/s390/include/asm/io.h:29:17: error: implicit declaration of function 'iounmap'; did you mean 'vunmap'? [-Werror=implicit-function-declaration] 29 | #define iounmap iounmap | ^~~~~~~ drivers/clk/clk-fixed-mmio.c:33:9: note: in expansion of macro 'iounmap' 33 | iounmap(base); | ^~~~~~~ I'll drop the series.