staging: brcm80211: removed unneeded call to brcms_b_tx_fifo_suspended
- removed call to brcms_b_tx_fifo_suspended on receipt of TX FIFO suspend/flush completion signal. - removed brcms_b_tx_fifo_suspended function as it is not being used elsewhere. Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Roland Vossen <rvossen@broadcom.com> Reviewed-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -1075,36 +1075,6 @@ brcms_b_txstatus(struct brcms_hardware *wlc_hw, bool bound, bool *fatal)
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return morepending;
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}
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/* brcms_b_tx_fifo_suspended:
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* Check the MAC's tx suspend status for a tx fifo.
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*
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* When the MAC acknowledges a tx suspend, it indicates that no more
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* packets will be transmitted out the radio. This is independent of
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* DMA channel suspension---the DMA may have finished suspending, or may still
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* be pulling data into a tx fifo, by the time the MAC acks the suspend
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* request.
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*/
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static bool brcms_b_tx_fifo_suspended(struct brcms_hardware *wlc_hw,
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uint tx_fifo)
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{
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/* check that a suspend has been requested and is no longer pending */
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/*
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* for DMA mode, the suspend request is set in xmtcontrol of the DMA
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* engine, and the tx fifo suspend at the lower end of the MAC is
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* acknowledged in the chnstatus register.
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*
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* The tx fifo suspend completion is independent of the DMA suspend
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* completion and may be acked before or after the DMA is suspended.
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*/
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if (dma_txsuspended(wlc_hw->di[tx_fifo]) &&
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(R_REG(&wlc_hw->regs->chnstatus) &
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(1 << tx_fifo)) == 0)
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return true;
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return false;
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}
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/* second-level interrupt processing
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* Return true if another dpc needs to be re-scheduled. false otherwise.
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* Param 'bounded' indicates if applicable loops should be bounded.
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@ -1161,10 +1131,6 @@ bool brcms_c_dpc(struct brcms_c_info *wlc, bool bounded)
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if (brcms_b_recv(wlc_hw, RX_FIFO, bounded))
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wlc->macintstatus |= MI_DMAINT;
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/* TX FIFO suspend/flush completion */
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if (macintstatus & MI_TXSTOP)
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brcms_b_tx_fifo_suspended(wlc_hw, TX_DATA_FIFO);
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/* noise sample collected */
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if (macintstatus & MI_BG_NOISE)
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wlc_phy_noise_sample_intr(wlc_hw->band->pi);
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