Fabrice Gasnier 16ee817e43 stmmac: fix stmmac_tx_avail should be called with TX locked ... stmmac_tx_avail() may lie if used unprotected. It's using cur_tx and dirty_tx index. These index may be already in use by tx_clean when entering xmit routine. So, this should be called locked. This can cause transmit queue to be stuck, with following message: NETDEV WATCHDOG: eth0 (stmmaceth): transmit queue 0 timed out Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-11-05 16:22:56 -05:00
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stmmac	stmmac: fix stmmac_tx_avail should be called with TX locked	2014-11-05 16:22:56 -05:00
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