UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

wifi: iwlwifi: pcie: avoid a warning in case prepare card failed 

In case CSME holds the NIC and SAP connection is already established,
iwl_pcie_prepare_card_hw() during iwl_pci_probe() will fail
(which is fine since CSME will release the nic later when asked with
a SAP message). In this case tring to grab nic access to read the
crf ids will fail with a warning.
Avoid the warning by only trying to read the crf ids in case prepare
card succeeded.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230822103048.9b026fa7b97e.I12bea7e6eef54eeeaf916b68d71583e92ff310fd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Avraham Stern 2023-08-22 10:33:15 +03:00 committed by Johannes Berg
parent d166a5c977
commit 057381ddac
1 changed files with 1 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/net/wireless/intel/iwlwifi/pcie/drv.c
View File

@ -1132,12 +1132,6 @@ static int get_crf_id(struct iwl_trans *iwl_trans)
else
sd_reg_ver_addr = SD_REG_VER;
if (!iwl_trans_grab_nic_access(iwl_trans)) {
IWL_ERR(iwl_trans, "Failed to grab nic access before reading crf id\n");
ret = -EIO;
goto out;
}
/* Enable access to peripheral registers */
val = iwl_read_umac_prph_no_grab(iwl_trans, WFPM_CTRL_REG);
val |= ENABLE_WFPM;
@ -1157,9 +1151,6 @@ static int get_crf_id(struct iwl_trans *iwl_trans)
iwl_trans->hw_crf_id, iwl_trans->hw_cnv_id,
iwl_trans->hw_wfpm_id);
iwl_trans_release_nic_access(iwl_trans);
out:
return ret;
}
@ -1351,6 +1342,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (ret)
goto out_free_trans;
if (iwl_trans_grab_nic_access(iwl_trans)) {
get_crf_id(iwl_trans);
/* all good */
iwl_trans_release_nic_access(iwl_trans);
} else {
@ -1360,7 +1352,6 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
iwl_trans->hw_rf_id = iwl_read32(iwl_trans, CSR_HW_RF_ID);
get_crf_id(iwl_trans);
/*
* The RF_ID is set to zero in blank OTP so read version to