From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (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 B86E640097F for ; Thu, 23 Jul 2026 22:23:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784845402; cv=none; b=A6rDlBIYjuf3mIKMiWQ4+WjGQTVMVBqnt+6gA3c1/7CLy1QR8+jEXjdTbgAxUmrcmSNzFUzEU/lQeHlhKXW3xydkuwmhv2l31YfuRmDqerMnp7+87LfclU8DQTzA5Kp/X+l9QhviinCkMSuaS5o0j7KtSbtb+GHNankWjyUKDNI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784845402; c=relaxed/simple; bh=vSgNmDRo80dikFqWhK3E4B1I9POZcE0Eddyflo9RSyA=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=nRj7AEMJ1uju19tH54II7fc4ikOWHdTy1BkW+mzh+CN7H9T7i8bF1YaUYowj+ms2zaVp6z6Uv0o7F3o1oL5ZGTfkiXSvzutmGvSPh+zVcFShMf2Bm2Cqb7mA3uBuvyJkaPDagmIVnsUsMxWMhikYQmod3CyI0g/DNS/Ei3du3Ac= 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=Y447+197; arc=none smtp.client-ip=192.198.163.16 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="Y447+197" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1784845398; x=1816381398; h=date:from:to:cc:subject:message-id:mime-version: content-transfer-encoding; bh=vSgNmDRo80dikFqWhK3E4B1I9POZcE0Eddyflo9RSyA=; b=Y447+197zWBEcUfxbR4JSZKc8yA/Y8TRByGjjjG99EC3X+KAHvKDnoYy /wEJFkzQygqVAYomsxDPtrIdQknO+YCoTNr4lf7vsmFvD6wfC+gbwLY/P mgP2qH2B2bpW2Zon2qsU+oNpebXt+UeAiQ+p798mnK34wKKA7pht3y6nO EDctT/7Xwi2ljSrUmqPDyQ1wxjLwaxX6jM9+ip8Q1dm2EMGobCEVaSU+p 21GhJoAR/FLqN6xBqBDfSrhdFAz5ZAKKxFV0abL8PkZ+yZfobLMfHUFUz ahql11uSIAmkgqDywo1t3Kh6tSZHH/jAIuBe347jvfXDpedUfI08ucCwA g==; X-CSE-ConnectionGUID: xYFsTxh6RmWiYjG0c3+LeQ== X-CSE-MsgGUID: BDt1XSiKRNO4XnBGJmqQJA== X-IronPort-AV: E=McAfee;i="6800,10657,11854"; a="73054998" X-IronPort-AV: E=Sophos;i="6.25,181,1779174000"; d="scan'208";a="73054998" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jul 2026 15:23:17 -0700 X-CSE-ConnectionGUID: f29Vc4yJRCO5Wxx642/mkQ== X-CSE-MsgGUID: 6tDT6gsjQWSvBIsJtEw8rA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,181,1779174000"; d="scan'208";a="281838647" Received: from lkp-server02.sh.intel.com (HELO ea128546eb3d) ([10.239.97.151]) by fmviesa002.fm.intel.com with ESMTP; 23 Jul 2026 15:23:16 -0700 Received: from kbuild by ea128546eb3d with local (Exim 4.98.2) (envelope-from ) id 1wn1ov-00000000a8y-1hvg; Thu, 23 Jul 2026 22:23:13 +0000 Date: Fri, 24 Jul 2026 06:22:57 +0800 From: kernel test robot To: Andy Chiu Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Paul Walmsley Subject: arch/riscv/kernel/signal.c:133:15: sparse: sparse: incorrect type in assignment (different address spaces) Message-ID: <202607240216.UvhA86WO-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git = master head: 4539944e515183668109bdf4d0c3d7d228383d88 commit: 818d78ba1b3f88d2bfee249f25020211488a26c3 riscv: signal: abstract he= ader saving for setup_sigcontext date: 7 months ago config: riscv-randconfig-r131-20260723 (https://download.01.org/0day-ci/arc= hive/20260724/202607240216.UvhA86WO-lkp@intel.com/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 600970= 8b4367171ccdbf4b5905cb6a803753fe18) sparse: v0.6.5-rc1 reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/archive= /20260724/202607240216.UvhA86WO-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new versio= n of the same patch/commit), kindly add following tags | Fixes: 818d78ba1b3f ("riscv: signal: abstract header saving for setup_sig= context") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202607240216.UvhA86WO-lkp@i= ntel.com/ sparse warnings: (new ones prefixed by >>) >> arch/riscv/kernel/signal.c:133:15: sparse: sparse: incorrect type in ass= ignment (different address spaces) @@ expected void [noderef] __user *d= atap @@ got void * @@ arch/riscv/kernel/signal.c:133:15: sparse: expected void [noderef] _= _user *datap arch/riscv/kernel/signal.c:133:15: sparse: got void * >> arch/riscv/kernel/signal.c:133:15: sparse: sparse: incorrect type in ass= ignment (different address spaces) @@ expected void [noderef] __user *d= atap @@ got void * @@ arch/riscv/kernel/signal.c:133:15: sparse: expected void [noderef] _= _user *datap arch/riscv/kernel/signal.c:133:15: sparse: got void * >> arch/riscv/kernel/signal.c:133:15: sparse: sparse: incorrect type in ass= ignment (different address spaces) @@ expected void [noderef] __user *d= atap @@ got void * @@ arch/riscv/kernel/signal.c:133:15: sparse: expected void [noderef] _= _user *datap arch/riscv/kernel/signal.c:133:15: sparse: got void * >> arch/riscv/kernel/signal.c:133:15: sparse: sparse: incorrect type in ass= ignment (different address spaces) @@ expected void [noderef] __user *d= atap @@ got void * @@ arch/riscv/kernel/signal.c:133:15: sparse: expected void [noderef] _= _user *datap arch/riscv/kernel/signal.c:133:15: sparse: got void * arch/riscv/kernel/signal.c:148:22: sparse: sparse: symbol 'arch_ext_list= ' was not declared. Should it be static? arch/riscv/kernel/signal.c:155:14: sparse: sparse: symbol 'nr_arch_exts'= was not declared. Should it be static? arch/riscv/kernel/signal.c:300:39: sparse: sparse: cast removes address = space '__user' of expression arch/riscv/kernel/signal.c:300:36: sparse: sparse: incorrect type in ass= ignment (different address spaces) @@ expected struct __riscv_ctx_hdr [= noderef] __user *sc_ext_ptr @@ got void * @@ arch/riscv/kernel/signal.c:300:36: sparse: expected struct __riscv_c= tx_hdr [noderef] __user *sc_ext_ptr arch/riscv/kernel/signal.c:300:36: sparse: got void * vim +133 arch/riscv/kernel/signal.c 8ee0b41898fa26 Greentime Hu 2023-06-05 107 =20 8ee0b41898fa26 Greentime Hu 2023-06-05 108 /* 8ee0b41898fa26 Greentime Hu 2023-06-05 109 * Restore Vector extension co= ntext from the user's signal frame. This function 8ee0b41898fa26 Greentime Hu 2023-06-05 110 * assumes a valid extension h= eader. So magic and size checking must be done by 8ee0b41898fa26 Greentime Hu 2023-06-05 111 * the caller. 8ee0b41898fa26 Greentime Hu 2023-06-05 112 */ 8ee0b41898fa26 Greentime Hu 2023-06-05 113 static long __restore_v_state(= struct pt_regs *regs, void __user *sc_vec) 8ee0b41898fa26 Greentime Hu 2023-06-05 114 { 8ee0b41898fa26 Greentime Hu 2023-06-05 115 long err; 8ee0b41898fa26 Greentime Hu 2023-06-05 116 struct __sc_riscv_v_state __u= ser *state =3D sc_vec; 8ee0b41898fa26 Greentime Hu 2023-06-05 117 void __user *datap; 8ee0b41898fa26 Greentime Hu 2023-06-05 118 =20 c27fa53b858b4e Bj=C3=B6rn T=C3=B6pel 2024-04-03 119 /* c27fa53b858b4e Bj=C3=B6rn T=C3=B6pel 2024-04-03 120 * Mark the vstate = as clean prior performing the actual copy, c27fa53b858b4e Bj=C3=B6rn T=C3=B6pel 2024-04-03 121 * to avoid getting= the vstate incorrectly clobbered by the c27fa53b858b4e Bj=C3=B6rn T=C3=B6pel 2024-04-03 122 * discarded vecto= r state. c27fa53b858b4e Bj=C3=B6rn T=C3=B6pel 2024-04-03 123 */ c27fa53b858b4e Bj=C3=B6rn T=C3=B6pel 2024-04-03 124 riscv_v_vstate_set_= restore(current, regs); c27fa53b858b4e Bj=C3=B6rn T=C3=B6pel 2024-04-03 125 =20 8ee0b41898fa26 Greentime Hu 2023-06-05 126 /* Copy everything of __sc_ri= scv_v_state except datap. */ 8ee0b41898fa26 Greentime Hu 2023-06-05 127 err =3D __copy_from_user(&cur= rent->thread.vstate, &state->v_state, 8ee0b41898fa26 Greentime Hu 2023-06-05 128 offsetof(struct __ri= scv_v_ext_state, datap)); 8ee0b41898fa26 Greentime Hu 2023-06-05 129 if (unlikely(err)) 8ee0b41898fa26 Greentime Hu 2023-06-05 130 return err; 8ee0b41898fa26 Greentime Hu 2023-06-05 131 =20 8ee0b41898fa26 Greentime Hu 2023-06-05 132 /* Copy the pointer datap its= elf. */ 8ee0b41898fa26 Greentime Hu 2023-06-05 @133 err =3D __get_user(datap, &st= ate->v_state.datap); 8ee0b41898fa26 Greentime Hu 2023-06-05 134 if (unlikely(err)) 8ee0b41898fa26 Greentime Hu 2023-06-05 135 return err; 8ee0b41898fa26 Greentime Hu 2023-06-05 136 /* 8ee0b41898fa26 Greentime Hu 2023-06-05 137 * Copy the whole vector cont= ent from user space datap. Use 8ee0b41898fa26 Greentime Hu 2023-06-05 138 * copy_from_user to prevent = information leak. 8ee0b41898fa26 Greentime Hu 2023-06-05 139 */ c27fa53b858b4e Bj=C3=B6rn T=C3=B6pel 2024-04-03 140 return copy_from_us= er(current->thread.vstate.datap, datap, riscv_v_vsize); 8ee0b41898fa26 Greentime Hu 2023-06-05 141 } 818d78ba1b3f88 Andy Chiu 2025-11-12 142 =20 :::::: The code at line 133 was first introduced by commit :::::: 8ee0b41898fa26f66e32237f179b6989c65600d6 riscv: signal: Add sigconte= xt save/restore for vector :::::: TO: Greentime Hu :::::: CC: Palmer Dabbelt -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki