net: stmmac: fix INTR TBU status affecting irq count statistic
DMA channel status "Transmit buffer unavailable(TBU)" bit is not considered as a successful dma tx. Hence, it should not affect all the irq count statistic. Fixes: 1103d3a5 ("net: stmmac: dwmac4: Also use TBU interrupt to clean TX path") Signed-off-by: Voon Weifeng <weifeng.voon@intel.com> Signed-off-by: Vijayakannan Ayyathurai <vijayakannan.ayyathurai@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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