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Commit 5d17920b authored by David S. Miller's avatar David S. Miller
Browse files

iwlwifi: Delete iwl3945_good_plcp_health.



Fixes this build warning:

drivers/net/wireless/iwlwifi/iwl-3945.c:411:13: warning: 'iwl3945_good_plcp_health' defined but not used

As per Johannes Berg.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8bc26a00
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+0 −66
Original line number Original line Diff line number Diff line
@@ -402,72 +402,6 @@ static void iwl3945_accumulative_statistics(struct iwl_priv *priv,
}
}
#endif
#endif


/**
 * iwl3945_good_plcp_health - checks for plcp error.
 *
 * When the plcp error is exceeding the thresholds, reset the radio
 * to improve the throughput.
 */
static bool iwl3945_good_plcp_health(struct iwl_priv *priv,
				struct iwl_rx_packet *pkt)
{
	bool rc = true;
	struct iwl3945_notif_statistics current_stat;
	int combined_plcp_delta;
	unsigned int plcp_msec;
	unsigned long plcp_received_jiffies;

	if (priv->cfg->base_params->plcp_delta_threshold ==
	    IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
		IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
		return rc;
	}
	memcpy(&current_stat, pkt->u.raw, sizeof(struct
			iwl3945_notif_statistics));
	/*
	 * check for plcp_err and trigger radio reset if it exceeds
	 * the plcp error threshold plcp_delta.
	 */
	plcp_received_jiffies = jiffies;
	plcp_msec = jiffies_to_msecs((long) plcp_received_jiffies -
					(long) priv->plcp_jiffies);
	priv->plcp_jiffies = plcp_received_jiffies;
	/*
	 * check to make sure plcp_msec is not 0 to prevent division
	 * by zero.
	 */
	if (plcp_msec) {
		combined_plcp_delta =
			(le32_to_cpu(current_stat.rx.ofdm.plcp_err) -
			le32_to_cpu(priv->_3945.statistics.rx.ofdm.plcp_err));

		if ((combined_plcp_delta > 0) &&
			((combined_plcp_delta * 100) / plcp_msec) >
			priv->cfg->base_params->plcp_delta_threshold) {
			/*
			 * if plcp_err exceed the threshold, the following
			 * data is printed in csv format:
			 *    Text: plcp_err exceeded %d,
			 *    Received ofdm.plcp_err,
			 *    Current ofdm.plcp_err,
			 *    combined_plcp_delta,
			 *    plcp_msec
			 */
			IWL_DEBUG_RADIO(priv, "plcp_err exceeded %u, "
				"%u, %d, %u mSecs\n",
				priv->cfg->base_params->plcp_delta_threshold,
				le32_to_cpu(current_stat.rx.ofdm.plcp_err),
				combined_plcp_delta, plcp_msec);
			/*
			 * Reset the RF radio due to the high plcp
			 * error rate
			 */
			rc = false;
		}
	}
	return rc;
}

void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
		struct iwl_rx_mem_buffer *rxb)
		struct iwl_rx_mem_buffer *rxb)
{
{