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[173.79.60.52]) by smtp.gmail.com with ESMTPSA id af79cd13be357-92e90ba1a3dsm1471710285a.15.2026.07.08.09.20.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Jul 2026 09:20:56 -0700 (PDT) Date: Wed, 8 Jul 2026 12:20:52 -0400 From: Gregory Price To: Thomas Gleixner Cc: kernel test robot , llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, x86@kernel.org Subject: Re: [tip:core/entry 2/3] arch/s390/include/asm/entry-common.h:49:18: error: call to undeclared function 'task_stack_page'; ISO C99 and later do not support implicit function declarations Message-ID: References: <202607081402.DO1ePla3-lkp@intel.com> <877bn5sxl3.ffs@fw13> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <877bn5sxl3.ffs@fw13> On Wed, Jul 08, 2026 at 10:19:04AM +0200, Thomas Gleixner wrote: > On Wed, Jul 08 2026 at 14:56, kernel test robot wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core/entry > > head: 34ef6308418f138395a664bf9f5d80ace9825ac6 > > commit: 7fc04d7044aaa5ffe2afe78979fe6ddd5da24f10 [2/3] syscall_user_dispatch: Make it configurable in Kconfig > > config: s390-allnoconfig (https://download.01.org/0day-ci/archive/20260708/202607081402.DO1ePla3-lkp@intel.com/config) > > compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 0a2fb2a2269da0e2a3e230beb6cad39ca314db33) > > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260708/202607081402.DO1ePla3-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/202607081402.DO1ePla3-lkp@intel.com/ > > > > All errors (new ones prefixed by >>): > > > > In file included from arch/s390/kernel/traps.c:24: > > In file included from include/linux/entry-common.h:5: > >>> arch/s390/include/asm/entry-common.h:49:18: error: call to undeclared function 'task_stack_page'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] > > 49 | pai_kernel_exit(current_pt_regs()); > > Bah. I missed to spot the header ordering change putting the > asm/... includes in front. I really hate our include mess. > > Let me fix that up. > Ah, I wasn't 100% sure on this - noted for the future. Sorry about the headache and thank you for the fixup. ~Gregory