diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2020-04-25 12:04:52 +0200 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2020-05-08 08:52:51 +0200 |
| commit | a8e82c36081e574c0c7bdc1b407a697465777069 (patch) | |
| tree | dc5236f43f6fab69898b9854eaf25aecd63c0b22 /drivers/net/wireless/intel | |
| parent | iwlwifi: dbg: mark a variable __maybe_unused (diff) | |
| download | linux-a8e82c36081e574c0c7bdc1b407a697465777069.tar.xz linux-a8e82c36081e574c0c7bdc1b407a697465777069.zip | |
iwlwifi: pcie: remove some dead code
We can never get into this code with a gen2/3 device, and therefore
don't need to allocate the byte count tables in a single contiguous
DMA region. Just WARN and bail out if something is misconfigured.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200425130140.a748d33252ef.If2f5810016efb40b041f93fe8c6b4c251542e2f1@changeid
Diffstat (limited to 'drivers/net/wireless/intel')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/tx.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c index 4582d418ba4d..9ff78bca460b 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c @@ -8,7 +8,7 @@ * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2018 - 2019 Intel Corporation + * Copyright(c) 2018 - 2020 Intel Corporation * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -31,7 +31,7 @@ * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2018 - 2019 Intel Corporation + * Copyright(c) 2018 - 2020 Intel Corporation * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -954,10 +954,10 @@ static int iwl_pcie_tx_alloc(struct iwl_trans *trans) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); u16 bc_tbls_size = trans->trans_cfg->base_params->num_of_queues; - bc_tbls_size *= (trans->trans_cfg->device_family >= - IWL_DEVICE_FAMILY_AX210) ? - sizeof(struct iwl_gen3_bc_tbl) : - sizeof(struct iwlagn_scd_bc_tbl); + if (WARN_ON(trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)) + return -EINVAL; + + bc_tbls_size *= sizeof(struct iwlagn_scd_bc_tbl); /*It is not allowed to alloc twice, so warn when this happens. * We cannot rely on the previous allocation, so free and fail */ |