diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2011-02-24 14:23:55 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-02-25 15:32:33 -0500 |
| commit | 43f12d47f0580e04e26c14c03cb19cea9687854e (patch) | |
| tree | 1674d9f8a2a8d692f34e5dd664a45c1941e0720e | |
| parent | 3083e83c86e604ac7005c100b7d7242389407ba5 (diff) | |
iwlegacy: do not set tx power when channel is changing
Same fix as f844a709a7d8f8be61a571afc31dfaca9e779621
"iwlwifi: do not set tx power when channel is changing".
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/iwlegacy/iwl-4965.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlegacy/iwl-core.c | 13 |
2 files changed, 11 insertions, 4 deletions
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965.c b/drivers/net/wireless/iwlegacy/iwl-4965.c index 080444c8902..f5433c74b84 100644 --- a/drivers/net/wireless/iwlegacy/iwl-4965.c +++ b/drivers/net/wireless/iwlegacy/iwl-4965.c @@ -1319,7 +1319,7 @@ static int iwl4965_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *c /* If we issue a new RXON command which required a tune then we must * send a new TXPOWER command or we won't be able to Tx any frames */ - ret = iwl_legacy_set_tx_power(priv, priv->tx_power_user_lmt, true); + ret = iwl_legacy_set_tx_power(priv, priv->tx_power_next, true); if (ret) { IWL_ERR(priv, "Error sending TX power (%d)\n", ret); return ret; diff --git a/drivers/net/wireless/iwlegacy/iwl-core.c b/drivers/net/wireless/iwlegacy/iwl-core.c index c95c3bcb724..7cc560bc4f9 100644 --- a/drivers/net/wireless/iwlegacy/iwl-core.c +++ b/drivers/net/wireless/iwlegacy/iwl-core.c @@ -1114,6 +1114,8 @@ int iwl_legacy_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) { int ret; s8 prev_tx_power; + bool defer; + struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; lockdep_assert_held(&priv->mutex); @@ -1141,10 +1143,15 @@ int iwl_legacy_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) if (!iwl_legacy_is_ready_rf(priv)) return -EIO; - /* scan complete use tx_power_next, need to be updated */ + /* scan complete and commit_rxon use tx_power_next value, + * it always need to be updated for newest request */ priv->tx_power_next = tx_power; - if (test_bit(STATUS_SCANNING, &priv->status) && !force) { - IWL_DEBUG_INFO(priv, "Deferring tx power set while scanning\n"); + + /* do not set tx power when scanning or channel changing */ + defer = test_bit(STATUS_SCANNING, &priv->status) || + memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging)); + if (defer && !force) { + IWL_DEBUG_INFO(priv, "Deferring tx power set\n"); return 0; } |