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| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2019-07-21 14:02:27 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2019-07-30 18:34:31 +0200 |
| commit | 87e7e25aee6b59fef740856f4e86d4b60496c9e1 (patch) | |
| tree | d68aeb1570ef063d5814c4ddca9a323338045a9a /drivers/net/wireless/intel/iwlwifi/pcie/tx.c | |
| parent | f5a47fae6aa3eb06f100e701d2342ee56b857bee (diff) | |
| download | linux-87e7e25aee6b59fef740856f4e86d4b60496c9e1.tar.bz2 | |
iwlwifi: don't unmap as page memory that was mapped as single
In order to remember how to unmap a memory (as single or
as page), we maintain a bit per Transmit Buffer (TBs) in
the meta data (structure iwl_cmd_meta).
We maintain a bitmap: 1 bit per TB.
If the TB is set, we will free the memory as a page.
This bitmap was never cleared. Fix this.
Cc: stable@vger.kernel.org
Fixes: 3cd1980b0cdf ("iwlwifi: pcie: introduce new tfd and tb formats")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/tx.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/tx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c index fa4245d0d4a8..2f0ba7ef53b8 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c @@ -435,6 +435,8 @@ static void iwl_pcie_tfd_unmap(struct iwl_trans *trans, DMA_TO_DEVICE); } + meta->tbs = 0; + if (trans->cfg->use_tfh) { struct iwl_tfh_tfd *tfd_fh = (void *)tfd; |