From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F8462C235F; Sat, 20 Dec 2025 14:46:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766241978; cv=none; b=aU27xJNk0B48/9WMP52a6n60qD6sh77r0A1BI29MIbFiPj/3opBg2+pec/ioYDAIAtYLq5ZmM8HWMoWTfpOSMNbhMT9p6qPSvnUUnJhb74PJhmXjGc+qS2Ub2LhFSMUJNV0LhHkweKpHp4390v69HmMkSWgtTYQk5ZyDd8oaqmc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766241978; c=relaxed/simple; bh=0/9AqWDR0QjCmpU+CYPu2fRg5LQPeaeBa8kwPoIxDO4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=dvWxbUOP9Clnw37WKPM2lZRaiVGZl+fvr+WD3lwmq0KfNzKbpmhIWQgHLF2aXJWQFL0hVRFh014xNfvewlu9TlacdFtpxQY4E6dO98jL+DCk+MgT60pqDdCQ70sV2nqEydVDpxA7e/mN4iOvq/smKQNWsQ8lX531E8xf4Nla3P8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=eKO94TMY; arc=none smtp.client-ip=192.198.163.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="eKO94TMY" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1766241977; x=1797777977; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=0/9AqWDR0QjCmpU+CYPu2fRg5LQPeaeBa8kwPoIxDO4=; b=eKO94TMY6qZ87x/Q87PWhqY98QI0FLSR2/DO2m8KKroBulvXRve7Od5g uOxzdBSgNoQlJN28HPIkm43fcSwUyYAlPtJhGJ7g8VfRsvBg5dnXeoTlI 8b70a9LOKUEDpqNLHkd7qoT5FjbIyXxPPBsEHtARMXxl0GoTXxNzL/Q7x ntpNHIh2l142x0e/sFc+ydHmgDjr8+yfBHh/MVNVEa44I95OwUQp1zTvk D19gtNbiGWpoZ91xZH3MnB1aj9mOZmRUWkop3Jb3rLhRHqOkLRRQukeRA SGthXhN6dAhlpBRuiXU742vs0u4Ieo2/gOuA713sBIisZZ/Tp208qRh6Y w==; X-CSE-ConnectionGUID: RFqy/KcuR9WsPCBsSOB5Qg== X-CSE-MsgGUID: l+/sDD5qTRO7LiEJf575jg== X-IronPort-AV: E=McAfee;i="6800,10657,11648"; a="85760386" X-IronPort-AV: E=Sophos;i="6.21,164,1763452800"; d="scan'208";a="85760386" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Dec 2025 06:46:16 -0800 X-CSE-ConnectionGUID: zaOdA7FhQs+c+8EGhahraQ== X-CSE-MsgGUID: Gd8F3kBzSy6LdBZnFHEqKw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,164,1763452800"; d="scan'208";a="199024654" Received: from lkp-server01.sh.intel.com (HELO 0d09efa1b85f) ([10.239.97.150]) by fmviesa006.fm.intel.com with ESMTP; 20 Dec 2025 06:46:09 -0800 Received: from kbuild by 0d09efa1b85f with local (Exim 4.98.2) (envelope-from ) id 1vWyDf-000000004fu-1cUP; Sat, 20 Dec 2025 14:46:07 +0000 Date: Sat, 20 Dec 2025 22:45:45 +0800 From: kernel test robot To: Yunhui Cui , aou@eecs.berkeley.edu, alex@ghiti.fr, andii@kernel.org, andybnac@gmail.com, apatel@ventanamicro.com, ast@kernel.org, ben.dooks@codethink.co.uk, bjorn@kernel.org, bpf@vger.kernel.org, charlie@rivosinc.com, cl@gentwo.org, conor.dooley@microchip.com, cyrilbur@tenstorrent.com, daniel@iogearbox.net, debug@rivosinc.com, dennis@kernel.org, eddyz87@gmail.com, haoluo@google.com, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux@rasmusvillemoes.dk, martin.lau@linux.dev, palmer@dabbelt.com, pjw@kernel.org, puranjay@kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: Re: [PATCH v3 2/3] riscv: introduce percpu.h into include/asm Message-ID: <202512202218.FI6bB5kV-lkp@intel.com> References: <20251216014721.42262-3-cuiyunhui@bytedance.com> 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: <20251216014721.42262-3-cuiyunhui@bytedance.com> Hi Yunhui, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.19-rc1 next-20251219] [cannot apply to bpf-next/net bpf-next/master bpf/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Yunhui-Cui/riscv-remove-irqflags-h-inclusion-in-asm-bitops-h/20251216-094956 base: linus/master patch link: https://lore.kernel.org/r/20251216014721.42262-3-cuiyunhui%40bytedance.com patch subject: [PATCH v3 2/3] riscv: introduce percpu.h into include/asm config: riscv-randconfig-002-20251217 (https://download.01.org/0day-ci/archive/20251220/202512202218.FI6bB5kV-lkp@intel.com/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251220/202512202218.FI6bB5kV-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/202512202218.FI6bB5kV-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:12: In file included from arch/riscv/include/asm/io.h:140: include/asm-generic/io.h:846:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 846 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:109:53: note: expanded from macro 'insw' 109 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from mm/slub.c:14: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:27: In file included from include/linux/kernel_stat.h:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:12: In file included from arch/riscv/include/asm/io.h:140: include/asm-generic/io.h:854:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 854 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:110:53: note: expanded from macro 'insl' 110 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from mm/slub.c:14: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:27: In file included from include/linux/kernel_stat.h:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:12: In file included from arch/riscv/include/asm/io.h:140: include/asm-generic/io.h:863:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 863 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:122:55: note: expanded from macro 'outsb' 122 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from mm/slub.c:14: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:27: In file included from include/linux/kernel_stat.h:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:12: In file included from arch/riscv/include/asm/io.h:140: include/asm-generic/io.h:872:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 872 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:123:55: note: expanded from macro 'outsw' 123 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from mm/slub.c:14: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:27: In file included from include/linux/kernel_stat.h:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:12: In file included from arch/riscv/include/asm/io.h:140: include/asm-generic/io.h:881:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 881 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:124:55: note: expanded from macro 'outsl' 124 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from mm/slub.c:14: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:27: In file included from include/linux/kernel_stat.h:8: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:12: In file included from arch/riscv/include/asm/io.h:140: include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1209 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ >> mm/slub.c:4385:9: warning: variable '__old' is uninitialized when used within its own initialization [-Wuninitialized] 4385 | return this_cpu_try_cmpxchg_freelist(s->cpu_slab->freelist_tid, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4386 | &old.freelist_tid, new.freelist_tid); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ mm/slab.h:31:39: note: expanded from macro 'this_cpu_try_cmpxchg_freelist' 31 | #define this_cpu_try_cmpxchg_freelist this_cpu_try_cmpxchg64 | ^ include/asm-generic/percpu.h:520:2: note: expanded from macro 'this_cpu_try_cmpxchg64' 520 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg64) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/percpu.h:110:24: note: expanded from macro '__cpu_fallback_try_cmpxchg' 110 | __val = _cmpxchg(pcp, __old, nval); \ | ~~~~~~~~~~~~~~^~~~~~~~~~~~ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/atomic/atomic-instrumented.h:4810:32: note: expanded from macro 'cmpxchg_relaxed' 4810 | raw_cmpxchg_relaxed(__ai_ptr, __VA_ARGS__); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ arch/riscv/include/asm/cmpxchg.h:265:24: note: expanded from macro 'arch_cmpxchg_relaxed' 265 | _arch_cmpxchg((ptr), (o), (n), \ | ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 266 | SC_SFX(""), CAS_SFX(""), \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 267 | SC_PREPEND(""), SC_APPEND(""), \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 268 | CAS_PREPEND(""), CAS_APPEND("")) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/cmpxchg.h:218:32: note: expanded from macro '_arch_cmpxchg' 218 | __typeof__(*(__ptr)) __old = (old); \ | ~~~~~ ^~~ mm/slub.c:4385:9: error: instruction requires the following: RV64I Base Instruction Set mm/slab.h:31:39: note: expanded from macro 'this_cpu_try_cmpxchg_freelist' 31 | #define this_cpu_try_cmpxchg_freelist this_cpu_try_cmpxchg64 | ^ include/asm-generic/percpu.h:520:47: note: expanded from macro 'this_cpu_try_cmpxchg64' 520 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg64) | ^ :1:5: note: instantiated into assembly here 1 | 0: lr.d s9, 0(a1) | ^ mm/slub.c:4385:9: error: instruction requires the following: RV64I Base Instruction Set 4385 | return this_cpu_try_cmpxchg_freelist(s->cpu_slab->freelist_tid, | ^ mm/slab.h:31:39: note: expanded from macro 'this_cpu_try_cmpxchg_freelist' 31 | #define this_cpu_try_cmpxchg_freelist this_cpu_try_cmpxchg64 | ^ include/asm-generic/percpu.h:520:47: note: expanded from macro 'this_cpu_try_cmpxchg64' 520 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg64) | ^ :3:2: note: instantiated into assembly here 3 | sc.d a3, a0, 0(a1) | ^ mm/slub.c:4385:9: error: instruction requires the following: RV64I Base Instruction Set 4385 | return this_cpu_try_cmpxchg_freelist(s->cpu_slab->freelist_tid, | ^ mm/slab.h:31:39: note: expanded from macro 'this_cpu_try_cmpxchg_freelist' 31 | #define this_cpu_try_cmpxchg_freelist this_cpu_try_cmpxchg64 | ^ include/asm-generic/percpu.h:520:47: note: expanded from macro 'this_cpu_try_cmpxchg64' 520 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg64) | ^ :1:5: note: instantiated into assembly here 1 | 0: lr.d s9, 0(a1) | ^ mm/slub.c:4385:9: error: instruction requires the following: RV64I Base Instruction Set 4385 | return this_cpu_try_cmpxchg_freelist(s->cpu_slab->freelist_tid, | ^ mm/slab.h:31:39: note: expanded from macro 'this_cpu_try_cmpxchg_freelist' 31 | #define this_cpu_try_cmpxchg_freelist this_cpu_try_cmpxchg64 | ^ include/asm-generic/percpu.h:520:47: note: expanded from macro 'this_cpu_try_cmpxchg64' 520 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg64) | ^ :3:2: note: instantiated into assembly here 3 | sc.d a3, a0, 0(a1) | ^ mm/slub.c:4385:9: error: instruction requires the following: RV64I Base Instruction Set 4385 | return this_cpu_try_cmpxchg_freelist(s->cpu_slab->freelist_tid, | ^ mm/slab.h:31:39: note: expanded from macro 'this_cpu_try_cmpxchg_freelist' 31 | #define this_cpu_try_cmpxchg_freelist this_cpu_try_cmpxchg64 | ^ include/asm-generic/percpu.h:520:47: note: expanded from macro 'this_cpu_try_cmpxchg64' 520 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg64) | ^ :1:5: note: instantiated into assembly here 1 | 0: lr.d s10, 0(a1) | ^ mm/slub.c:4385:9: error: instruction requires the following: RV64I Base Instruction Set 4385 | return this_cpu_try_cmpxchg_freelist(s->cpu_slab->freelist_tid, | ^ mm/slab.h:31:39: note: expanded from macro 'this_cpu_try_cmpxchg_freelist' 31 | #define this_cpu_try_cmpxchg_freelist this_cpu_try_cmpxchg64 | ^ include/asm-generic/percpu.h:520:47: note: expanded from macro 'this_cpu_try_cmpxchg64' 520 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg64) | ^ :3:2: note: instantiated into assembly here 3 | sc.d a3, a0, 0(a1) | ^ mm/slub.c:4385:9: error: instruction requires the following: RV64I Base Instruction Set vim +/__old +4385 mm/slub.c 0b303fb402862d Vlastimil Babka 2021-05-08 4376 6801be4f2653e5 Peter Zijlstra 2023-05-31 4377 static inline bool 6801be4f2653e5 Peter Zijlstra 2023-05-31 4378 __update_cpu_freelist_fast(struct kmem_cache *s, 6801be4f2653e5 Peter Zijlstra 2023-05-31 4379 void *freelist_old, void *freelist_new, 6801be4f2653e5 Peter Zijlstra 2023-05-31 4380 unsigned long tid) 6801be4f2653e5 Peter Zijlstra 2023-05-31 4381 { b244358e9a1cd6 Vlastimil Babka 2025-11-07 4382 struct freelist_tid old = { .freelist = freelist_old, .tid = tid }; b244358e9a1cd6 Vlastimil Babka 2025-11-07 4383 struct freelist_tid new = { .freelist = freelist_new, .tid = next_tid(tid) }; 6801be4f2653e5 Peter Zijlstra 2023-05-31 4384 b244358e9a1cd6 Vlastimil Babka 2025-11-07 @4385 return this_cpu_try_cmpxchg_freelist(s->cpu_slab->freelist_tid, b244358e9a1cd6 Vlastimil Babka 2025-11-07 4386 &old.freelist_tid, new.freelist_tid); 6801be4f2653e5 Peter Zijlstra 2023-05-31 4387 } 6801be4f2653e5 Peter Zijlstra 2023-05-31 4388 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki