| Message ID | 20230316140912.1038404-4-desnesn@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | scsi: smartpqi: fix DMA overlapping mappings asymmetry | expand |
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 49a8f91810b6..6fca497ca605 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1726,6 +1726,8 @@ static bool pqi_keep_device_offline(struct pqi_ctrl_info *ctrl_info, rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, &error_info); + pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir); + if (rc) goto out; /* Assume not offline */
Currently, pqi_keep_device_offline() calls pqi_build_raid_path_request() (i.e., a wrapper to pqi_map_single()), but there isn't a pqi_pci_unmap() call in pqi_keep_device_offline(). Hence, this is flaged as an API viola- tion due to the overlapping mapping of the physical address. This patch fixes following warning: DMA-API: smartpqi 0000:43:00.0: cacheline tracking EEXIST, overlapping mappings aren't supported WARNING: CPU: 0 PID: 15 at kernel/dma/debug.c:570 add_dma_entry+0x1f6/0x2f0 CPU: 0 PID: 15 Comm: kworker/0:1 Not tainted 6.3.0-rc1-linux #1 Call Trace: <TASK> dma_map_page_attrs+0x6f/0xa0 pqi_map_single+0xaa/0x160 [smartpqi] pqi_keep_device_offline+0xaf/0x160 [smartpqi] ? dma_unmap_page_attrs+0x1a1/0x1e0 ? pqi_identify_physical_device.constprop.0+0xd3/0xe0 [smartpqi] pqi_update_scsi_devices+0x284/0x7e0 [smartpqi] pqi_scan_scsi_devices+0x87/0xe0 [smartpqi] pqi_ctrl_init+0x725/0xa60 [smartpqi] pqi_pci_probe+0xa7/0x130 [smartpqi] local_pci_probe+0x46/0xa0 work_for_cpu_fn+0x16/0x20 process_one_work+0x2bf/0x670 ? __pfx_worker_thread+0x10/0x10 worker_thread+0x1d1/0x3b0 ? __pfx_worker_thread+0x10/0x10 kthread+0xf3/0x120 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2c/0x50 </TASK> Fixes: be76f90668d8 ("scsi: smartpqi: Add TEST UNIT READY check for SANITIZE operation") Signed-off-by: Desnes Nunes <desnesn@redhat.com> --- drivers/scsi/smartpqi/smartpqi_init.c | 2 ++ 1 file changed, 2 insertions(+)