From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.20]) (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 D844B13FE2 for ; Sun, 26 Nov 2023 22:40:17 +0000 (UTC) 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="DlGPZFYr" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701038417; x=1732574417; h=date:from:to:cc:subject:message-id:mime-version: content-transfer-encoding; bh=usAV6Whf9FH2YBidQzrG74Tij6/jTrejgX8UFCe2f7M=; b=DlGPZFYr6AL8qmcKfMf0VWbuCciP9x/+r/5A/U18uDUhKSLllVa/OKTr O7hwpwOJn1umel7Y0k/wwVou8wZrMzVzOoxVeH+IRgLNE2uFfGMrJ2weQ FB0ESP6nBMQK6Wu7VW+jP/pS9qxVBWL5/OvctaJ6uCs24y/r7qJb4gE4g YThEsbIxJ+yz7xrhKhzETxct826Pch1a21815oJJBFxWAtubTU8WXrJ2C uoYseXxGq9V1anu6B8DIvD3RMfrW2t1Q9bERQqtXquCgHkiaQeLhEmVRI 3hrMCstazIaGqQk+OHizWtyJin68rFqqioAwDgPzaTWJIygyVyHeObSIl w==; X-IronPort-AV: E=McAfee;i="6600,9927,10906"; a="383006570" X-IronPort-AV: E=Sophos;i="6.04,229,1695711600"; d="scan'208";a="383006570" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Nov 2023 14:40:17 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10906"; a="885824014" X-IronPort-AV: E=Sophos;i="6.04,229,1695711600"; d="scan'208";a="885824014" Received: from lkp-server01.sh.intel.com (HELO d584ee6ebdcc) ([10.239.97.150]) by fmsmga002.fm.intel.com with ESMTP; 26 Nov 2023 14:40:15 -0800 Received: from kbuild by d584ee6ebdcc with local (Exim 4.96) (envelope-from ) id 1r7NnR-0005aV-1c; Sun, 26 Nov 2023 22:40:13 +0000 Date: Mon, 27 Nov 2023 06:39:44 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: arch/riscv/kernel/traps.c:62 dump_instr() error: uninitialized symbol 'val'. Message-ID: <202311270307.vlK7NGyN-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org TO: Yunhui Cui CC: Palmer Dabbelt CC: "Björn Töpel" tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: d2da77f431ac49b5763b88751a75f70daa46296c commit: b8a03a634129b61a7ec69ece4460297ffbd790dc riscv: add userland instruction dump to RISC-V splats date: 3 weeks ago :::::: branch date: 2 hours ago :::::: commit date: 3 weeks ago config: riscv-randconfig-r071-20231126 (https://download.01.org/0day-ci/archive/20231127/202311270307.vlK7NGyN-lkp@intel.com/config) compiler: riscv64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231127/202311270307.vlK7NGyN-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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202311270307.vlK7NGyN-lkp@intel.com/ New smatch warnings: arch/riscv/kernel/traps.c:62 dump_instr() error: uninitialized symbol 'val'. Old smatch warnings: arch/riscv/include/asm/syscall.h:88 syscall_handler() warn: inconsistent indenting vim +/val +62 arch/riscv/kernel/traps.c b8a03a634129b6 Yunhui Cui 2023-09-12 50 b8a03a634129b6 Yunhui Cui 2023-09-12 51 static void dump_instr(const char *loglvl, struct pt_regs *regs) eb165bfa8eafc3 Björn Töpel 2023-01-19 52 { eb165bfa8eafc3 Björn Töpel 2023-01-19 53 char str[sizeof("0000 ") * 12 + 2 + 1], *p = str; eb165bfa8eafc3 Björn Töpel 2023-01-19 54 const u16 *insns = (u16 *)instruction_pointer(regs); eb165bfa8eafc3 Björn Töpel 2023-01-19 55 long bad; eb165bfa8eafc3 Björn Töpel 2023-01-19 56 u16 val; eb165bfa8eafc3 Björn Töpel 2023-01-19 57 int i; eb165bfa8eafc3 Björn Töpel 2023-01-19 58 eb165bfa8eafc3 Björn Töpel 2023-01-19 59 for (i = -10; i < 2; i++) { b8a03a634129b6 Yunhui Cui 2023-09-12 60 bad = copy_code(regs, &val, &insns[i]); eb165bfa8eafc3 Björn Töpel 2023-01-19 61 if (!bad) { eb165bfa8eafc3 Björn Töpel 2023-01-19 @62 p += sprintf(p, i == 0 ? "(%04hx) " : "%04hx ", val); eb165bfa8eafc3 Björn Töpel 2023-01-19 63 } else { eb165bfa8eafc3 Björn Töpel 2023-01-19 64 printk("%sCode: Unable to access instruction at 0x%px.\n", eb165bfa8eafc3 Björn Töpel 2023-01-19 65 loglvl, &insns[i]); eb165bfa8eafc3 Björn Töpel 2023-01-19 66 return; eb165bfa8eafc3 Björn Töpel 2023-01-19 67 } eb165bfa8eafc3 Björn Töpel 2023-01-19 68 } eb165bfa8eafc3 Björn Töpel 2023-01-19 69 printk("%sCode: %s\n", loglvl, str); eb165bfa8eafc3 Björn Töpel 2023-01-19 70 } eb165bfa8eafc3 Björn Töpel 2023-01-19 71 :::::: The code at line 62 was first introduced by commit :::::: eb165bfa8eafc3d306e34b238e53aafb35dce102 riscv: Add instruction dump to RISC-V splats :::::: TO: Björn Töpel :::::: CC: Palmer Dabbelt -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki