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| author | Ben Hutchings <ben@decadent.org.uk> | 2014-03-25 21:28:22 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-31 08:40:30 +0400 |
| commit | 904855a5c90e491a1700e7e6a9268ee00d9bdf39 (patch) | |
| tree | 3bf6efb83d7bf162def5a34e655f26b9a63061b5 /drivers/net/wireless | |
| parent | 542a39ac9dd4586a3b74958cadacb47aea3444b0 (diff) | |
| download | linux-904855a5c90e491a1700e7e6a9268ee00d9bdf39.tar.xz | |
iwlwifi: Complete backport of "iwlwifi: always copy first 16 bytes of commands"
Linux 3.4.83 included an incomplete backport of commit
8a964f44e01ad3bbc208c3e80d931ba91b9ea786 ('iwlwifi: always copy first
16 bytes of commands') which causes a regression for this driver.
This is the missing piece.
Reported-by: Andreas Sturmlechner <andreas.sturmlechner@gmail.com>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Andres Bertens <abertensu@yahoo.com>
Tested-by: Andreas Sturmlechner <andreas.sturmlechner@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c index 91bad2f23842..ba38ace80a49 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c @@ -825,14 +825,15 @@ static int iwl_enqueue_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd) trace_idx = 1; #endif + /* map the remaining (adjusted) nocopy/dup fragments */ for (i = 0; i < IWL_MAX_CMD_TFDS; i++) { - if (!cmd->len[i]) + if (!cmdlen[i]) continue; if (!(cmd->dataflags[i] & IWL_HCMD_DFL_NOCOPY)) continue; phys_addr = dma_map_single(trans->dev, - (void *)cmd->data[i], - cmd->len[i], DMA_BIDIRECTIONAL); + (void *)cmddata[i], + cmdlen[i], DMA_BIDIRECTIONAL); if (dma_mapping_error(trans->dev, phys_addr)) { iwlagn_unmap_tfd(trans, out_meta, &txq->tfds[q->write_ptr], |