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X-CSE-ConnectionGUID: 9kda2UTaR1eT/N6A9lL7wg== X-CSE-MsgGUID: 3DX8LJFcTKG2Dg+rOy/p9w== X-IronPort-AV: E=McAfee;i="6800,10657,11928"; a="202031" X-IronPort-AV: E=Sophos;i="6.27,145,1787036400"; d="scan'208";a="202031" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Oct 2026 20:58:16 -0700 X-CSE-ConnectionGUID: 7gU9kWMrTX6KwMU8HN6ICg== X-CSE-MsgGUID: 37LV2hXFQKCODPJ+d/DQVQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,145,1787036400"; d="scan'208";a="281384152" Received: from igk-lkp-server01.igk.intel.com (HELO d0de6c2a75a7) ([10.211.93.152]) by orviesa005.jf.intel.com with ESMTP; 07 Oct 2026 20:58:14 -0700 Received: from kbuild by d0de6c2a75a7 with local (Exim 4.98.2) (envelope-from ) id 1xEfGm-000000004jD-0Aor; Thu, 08 Oct 2026 03:58:12 +0000 Date: Thu, 08 Oct 2026 05:57:42 +0200 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Julia Lawall Subject: [linux-next:master 13327/15025] drivers/dma/dw-edma/dw-edma-core.c:1086:4-31: opportunity for str_write_read(chan -> dir == EDMA_DIR_WRITE) Message-ID: <202610080554.KfhFfNqT-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev TO: Koichiro Den CC: Vinod Koul CC: Frank Li tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: b018686719706a781c45a874ed51374a2dc4b767 commit: 9d31ad3b331d5d78bd6a247a9d35f35a6a9bbd59 [13327/15025] dmaengine: dw-edma: Configure remote interrupt routing :::::: branch date: 14 hours ago :::::: commit date: 3 days ago config: powerpc64-randconfig-r2105-20261008 (https://download.01.org/0day-ci/archive/20261008/202610080554.KfhFfNqT-lkp@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 14.3.0 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: Julia Lawall | Closes: https://lore.kernel.org/r/202610080554.KfhFfNqT-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> drivers/dma/dw-edma/dw-edma-core.c:1086:4-31: opportunity for str_write_read(chan -> dir == EDMA_DIR_WRITE) vim +1086 drivers/dma/dw-edma/dw-edma-core.c 9d31ad3b331d5d Koichiro Den 2026-09-13 1066 99109a51efd28c Koichiro Den 2026-07-18 1067 static void dw_edma_device_synchronize(struct dma_chan *dchan) 99109a51efd28c Koichiro Den 2026-07-18 1068 { 99109a51efd28c Koichiro Den 2026-07-18 1069 struct dw_edma_chan *chan = dchan2dw_edma_chan(dchan); 9d31ad3b331d5d Koichiro Den 2026-09-13 1070 bool remote; 9d31ad3b331d5d Koichiro Den 2026-09-13 1071 9d31ad3b331d5d Koichiro Den 2026-09-13 1072 /* 9d31ad3b331d5d Koichiro Den 2026-09-13 1073 * irq_mode is fixed after initial configuration. The free path 9d31ad3b331d5d Koichiro Den 2026-09-13 1074 * restores it only after synchronization. 9d31ad3b331d5d Koichiro Den 2026-09-13 1075 */ 9d31ad3b331d5d Koichiro Den 2026-09-13 1076 remote = chan->dw->chip->flags & DW_EDMA_CHIP_LOCAL && 9d31ad3b331d5d Koichiro Den 2026-09-13 1077 chan->irq_mode == DW_EDMA_CH_IRQ_REMOTE; 9d31ad3b331d5d Koichiro Den 2026-09-13 1078 9d31ad3b331d5d Koichiro Den 2026-09-13 1079 /* 9d31ad3b331d5d Koichiro Den 2026-09-13 1080 * Peer-driven transfers bypass local descriptor tracking, so quiesce 9d31ad3b331d5d Koichiro Den 2026-09-13 1081 * the hardware explicitly. 9d31ad3b331d5d Koichiro Den 2026-09-13 1082 */ 9d31ad3b331d5d Koichiro Den 2026-09-13 1083 if (remote && dw_edma_core_ch_quiesce(chan)) 9d31ad3b331d5d Koichiro Den 2026-09-13 1084 dev_warn(chan->dw->chip->dev, 9d31ad3b331d5d Koichiro Den 2026-09-13 1085 "failed to quiesce remote-routed %s channel %u\n", 9d31ad3b331d5d Koichiro Den 2026-09-13 @1086 chan->dir == EDMA_DIR_WRITE ? "write" : "read", 9d31ad3b331d5d Koichiro Den 2026-09-13 1087 chan->id); 99109a51efd28c Koichiro Den 2026-07-18 1088 99109a51efd28c Koichiro Den 2026-07-18 1089 dw_edma_wait_termination(dchan); 9d31ad3b331d5d Koichiro Den 2026-09-13 1090 if (remote) 9d31ad3b331d5d Koichiro Den 2026-09-13 1091 dw_edma_synchronize_chan_irq(chan); 35de39e4511f00 Koichiro Den 2026-07-18 1092 cancel_work_sync(&chan->irq_work); 35de39e4511f00 Koichiro Den 2026-07-18 1093 atomic_set(&chan->irq_pending, 0); 99109a51efd28c Koichiro Den 2026-07-18 1094 vchan_synchronize(&chan->vc); 2b651ecfc39fb6 kbuild test robot 2019-06-16 1095 } 99109a51efd28c Koichiro Den 2026-07-18 1096 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki