iwlwifi: mvm: don't clear tbl->win mistakenly

rs_get_tbl_info_from_mcs() mistakenly clears
the rate histories window, overriding its initialization
values (i.e. filling it with 0, instead of -1).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index a69bd4c..a587b21 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -492,7 +492,7 @@ static int rs_get_tbl_info_from_mcs(const u32 rate_n_flags,
        u8 num_of_ant = get_num_of_ant_from_rate(rate_n_flags);
        u8 mcs;
 
-       memset(tbl, 0, sizeof(struct iwl_scale_tbl_info));
+       memset(tbl, 0, offsetof(struct iwl_scale_tbl_info, win));
        *rate_idx = iwl_hwrate_to_plcp_idx(rate_n_flags);
 
        if (*rate_idx  == IWL_RATE_INVALID) {