diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-01-17 13:10:30 +0200 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2021-02-05 11:52:28 +0200 |
| commit | 88181e6e21c4f4c0dcacf147e0e8c5bb789b6e5b (patch) | |
| tree | d7f506fecd8a07e33a51067637befaabdb20b09e /drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | |
| parent | 1e1a58bec773a6c377fd31625650ed5aaaf6e93f (diff) | |
| download | linux-88181e6e21c4f4c0dcacf147e0e8c5bb789b6e5b.tar.bz2 | |
iwlwifi: mvm: remove debugfs injection limitations
For testing features where the firmware may send some
notifications it can often be a lot easier to do that
from a test script. Remove most injection limitations
from debugfs to be able to do this.
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.20210117130510.9aff3c6b4607.I03b0ae7df094734451445ffcb7f9f0274969f1c0@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | 26 |
1 files changed, 7 insertions, 19 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index 80f848a9ee13..8fb7911cfd6c 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -1117,24 +1117,22 @@ static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { + struct iwl_op_mode *opmode = container_of((void *)mvm, + struct iwl_op_mode, + op_mode_specific); struct iwl_rx_cmd_buffer rxb = { ._rx_page_order = 0, .truesize = 0, /* not used */ ._offset = 0, }; struct iwl_rx_packet *pkt; - struct iwl_rx_mpdu_desc *desc; int bin_len = count / 2; int ret = -EINVAL; - size_t mpdu_cmd_hdr_size = (mvm->trans->trans_cfg->device_family >= - IWL_DEVICE_FAMILY_AX210) ? - sizeof(struct iwl_rx_mpdu_desc) : - IWL_RX_DESC_SIZE_V1; if (!iwl_mvm_firmware_running(mvm)) return -EIO; - /* supporting only 9000 descriptor */ + /* supporting only MQ RX */ if (!mvm->trans->trans_cfg->mq_rx_supported) return -ENOTSUPP; @@ -1148,22 +1146,12 @@ static ssize_t iwl_dbgfs_inject_packet_write(struct iwl_mvm *mvm, goto out; /* avoid invalid memory access */ - if (bin_len < sizeof(*pkt) + mpdu_cmd_hdr_size) - goto out; - - /* check this is RX packet */ - if (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd) != - WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)) - goto out; - - /* check the length in metadata matches actual received length */ - desc = (void *)pkt->data; - if (le16_to_cpu(desc->mpdu_len) != - (bin_len - mpdu_cmd_hdr_size - sizeof(*pkt))) + if (bin_len < sizeof(*pkt) || + bin_len < sizeof(*pkt) + iwl_rx_packet_payload_len(pkt)) goto out; local_bh_disable(); - iwl_mvm_rx_mpdu_mq(mvm, NULL, &rxb, 0); + iwl_mvm_rx_mq(opmode, NULL, &rxb); local_bh_enable(); ret = 0; |