Hi Andrew, Today's linux-next merge of the akpm-current tree got a conflict in drivers/misc/mei/hbm.c between commit 544f94601409 ("mei: do not run reset flow from the interrupt thread") from the char-misc tree and commit dd045dab2999 ("drivers/misc/mei: ratelimit several error messages") from the akpm-current tree. I am not sure if the akpm-current tree fix is still needed, but I fixed it up anyway (see below) and can carry the fix as necessary (no action is required). -- Cheers, Stephen Rothwell sfr@xxxxxxxxxxxxxxxx diff --cc drivers/misc/mei/hbm.c index 8520cdfa2f05,2ab8b1dab39c..000000000000 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@@ -626,31 -597,25 +626,31 @@@ int mei_hbm_dispatch(struct mei_device } if (!mei_hbm_version_is_supported(dev)) { - dev_warn(&dev->pdev->dev, "hbm version mismatch: stopping the driver.\n"); + dev_warn(&dev->pdev->dev, "hbm: start: version mismatch - stopping the driver.\n"); - dev->hbm_state = MEI_HBM_STOP; + dev->hbm_state = MEI_HBM_STOPPED; mei_hbm_stop_req_prepare(dev, &dev->wr_msg.hdr, dev->wr_msg.data); - mei_write_message(dev, &dev->wr_msg.hdr, - dev->wr_msg.data); + if (mei_write_message(dev, &dev->wr_msg.hdr, + dev->wr_msg.data)) { + dev_err(&dev->pdev->dev, "hbm: start: failed to send stop request\n"); + return -EIO; + } + break; + } - return; + if (dev->dev_state != MEI_DEV_INIT_CLIENTS || + dev->hbm_state != MEI_HBM_START) { - dev_err(&dev->pdev->dev, "hbm: start: state mismatch, [%d, %d]\n", ++ dev_err_ratelimited(&dev->pdev->dev, "hbm: start: state mismatch, [%d, %d]\n", + dev->dev_state, dev->hbm_state); + return -EPROTO; } - if (dev->dev_state == MEI_DEV_INIT_CLIENTS && - dev->hbm_state == MEI_HBM_START) { - dev->init_clients_timer = 0; - mei_hbm_enum_clients_req(dev); - } else { - dev_err_ratelimited(&dev->pdev->dev, "reset: wrong host start response\n"); - mei_reset(dev, 1); - return; + dev->hbm_state = MEI_HBM_STARTED; + + if (mei_hbm_enum_clients_req(dev)) { + dev_err(&dev->pdev->dev, "hbm: start: failed to send enumeration request\n"); + return -EIO; } wake_up_interruptible(&dev->wait_recvd_msg); @@@ -731,25 -681,19 +731,25 @@@ < sizeof(enum_res->valid_addresses)); memcpy(dev->me_clients_map, enum_res->valid_addresses, sizeof(enum_res->valid_addresses)); - if (dev->dev_state == MEI_DEV_INIT_CLIENTS && - dev->hbm_state == MEI_HBM_ENUM_CLIENTS) { - dev->init_clients_timer = 0; - mei_hbm_me_cl_allocate(dev); - dev->hbm_state = MEI_HBM_CLIENT_PROPERTIES; - - /* first property reqeust */ - mei_hbm_prop_req(dev); - } else { - dev_err_ratelimited(&dev->pdev->dev, "reset: unexpected enumeration response hbm.\n"); - mei_reset(dev, 1); - return; + + if (dev->dev_state != MEI_DEV_INIT_CLIENTS || + dev->hbm_state != MEI_HBM_ENUM_CLIENTS) { - dev_err(&dev->pdev->dev, "hbm: enumeration response: state mismatch, [%d, %d]\n", ++ dev_err_ratelimited(&dev->pdev->dev, "hbm: enumeration response: state mismatch, [%d, %d]\n", + dev->dev_state, dev->hbm_state); + return -EPROTO; + } + + if (mei_hbm_me_cl_allocate(dev)) { + dev_err(&dev->pdev->dev, "hbm: enumeration response: cannot allocate clients array\n"); + return -ENOMEM; } + + dev->hbm_state = MEI_HBM_CLIENT_PROPERTIES; + + /* first property request */ + if (mei_hbm_prop_req(dev)) + return -EIO; + break; case HOST_STOP_RES_CMD:
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