From: Johannes Berg <johannes.berg@xxxxxxxxx> [ Upstream commit 0f673c16c850250db386537a422c11d248fb123c ] Some products (So) may have two different types of products with different mac-type that are otherwise equivalent, and have the same PNVM data, so the PNVM file will contain two (or perhaps later more) HW-type TLVs. Accept the file and use the data section that contains any matching entry. Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20210719140154.a6a86e903035.Ic0b1b75c45d386698859f251518e8a5144431938@changeid Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/net/wireless/intel/iwlwifi/fw/pnvm.c | 25 +++++++++++++------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c index 40f2109a097f..1a63cae6567e 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c @@ -37,6 +37,7 @@ static int iwl_pnvm_handle_section(struct iwl_trans *trans, const u8 *data, u32 sha1 = 0; u16 mac_type = 0, rf_id = 0; u8 *pnvm_data = NULL, *tmp; + bool hw_match = false; u32 size = 0; int ret; @@ -83,6 +84,9 @@ static int iwl_pnvm_handle_section(struct iwl_trans *trans, const u8 *data, break; } + if (hw_match) + break; + mac_type = le16_to_cpup((__le16 *)data); rf_id = le16_to_cpup((__le16 *)(data + sizeof(__le16))); @@ -90,15 +94,9 @@ static int iwl_pnvm_handle_section(struct iwl_trans *trans, const u8 *data, "Got IWL_UCODE_TLV_HW_TYPE mac_type 0x%0x rf_id 0x%0x\n", mac_type, rf_id); - if (mac_type != CSR_HW_REV_TYPE(trans->hw_rev) || - rf_id != CSR_HW_RFID_TYPE(trans->hw_rf_id)) { - IWL_DEBUG_FW(trans, - "HW mismatch, skipping PNVM section, mac_type 0x%0x, rf_id 0x%0x.\n", - CSR_HW_REV_TYPE(trans->hw_rev), trans->hw_rf_id); - ret = -ENOENT; - goto out; - } - + if (mac_type == CSR_HW_REV_TYPE(trans->hw_rev) && + rf_id == CSR_HW_RFID_TYPE(trans->hw_rf_id)) + hw_match = true; break; case IWL_UCODE_TLV_SEC_RT: { struct iwl_pnvm_section *section = (void *)data; @@ -149,6 +147,15 @@ static int iwl_pnvm_handle_section(struct iwl_trans *trans, const u8 *data, } done: + if (!hw_match) { + IWL_DEBUG_FW(trans, + "HW mismatch, skipping PNVM section (need mac_type 0x%x rf_id 0x%x)\n", + CSR_HW_REV_TYPE(trans->hw_rev), + CSR_HW_RFID_TYPE(trans->hw_rf_id)); + ret = -ENOENT; + goto out; + } + if (!size) { IWL_DEBUG_FW(trans, "Empty PNVM, skipping.\n"); ret = -ENOENT; -- 2.30.2
