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iwlwifi: mvm: fix scan offload for BGN SKU

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BGN SKU won't scan on 5.2GHz obviously, but the firmware
still expects the driver to reserve space for the the probe
request for the 5.2GHz band.
Fix this by allocating space and leave it empty.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=69541

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Emmanuel Grumbach 2014-02-20 14:58:30 +02:00
parent 14cfca7152
commit 660925371b
1 changed files with 1 additions and 7 deletions
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8
drivers/net/wireless/iwlwifi/mvm/scan.c
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@ -709,7 +709,6 @@ int iwl_mvm_config_sched_scan(struct iwl_mvm *mvm,
struct cfg80211_sched_scan_request *req,
struct ieee80211_sched_scan_ies *ies)
{
int supported_bands = 0;
int band_2ghz = mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels;
int band_5ghz = mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels;
int head = 0;
@ -726,13 +725,8 @@ int iwl_mvm_config_sched_scan(struct iwl_mvm *mvm,
lockdep_assert_held(&mvm->mutex);
if (band_2ghz)
supported_bands++;
if (band_5ghz)
supported_bands++;
cmd_len = sizeof(struct iwl_scan_offload_cfg) +
supported_bands * SCAN_OFFLOAD_PROBE_REQ_SIZE;
2 * SCAN_OFFLOAD_PROBE_REQ_SIZE;
scan_cfg = kzalloc(cmd_len, GFP_KERNEL);
if (!scan_cfg)