linux-uconsole/drivers/net/ethernet/altera
Tomonori Sakita c91f641625 net: altera_tse: fix msgdma_tx_completion on non-zero fill_level case
[ Upstream commit 6571ebce11 ]

If fill_level was not zero and status was not BUSY,
result of "tx_prod - tx_cons - inuse" might be zero.
Subtracting 1 unconditionally results invalid negative return value
on this case.
Make sure not to return an negative value.

Signed-off-by: Tomonori Sakita <tomonori.sakita@sord.co.jp>
Signed-off-by: Atsushi Nemoto <atsushi.nemoto@sord.co.jp>
Reviewed-by: Dalon L Westergreen <dalon.westergreen@linux.intel.com>
Acked-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-03-13 14:02:29 -07:00
..
altera_msgdma.c net: altera_tse: fix msgdma_tx_completion on non-zero fill_level case 2019-03-13 14:02:29 -07:00
altera_msgdma.h
altera_msgdmahw.h
altera_sgdma.c
altera_sgdma.h
altera_sgdmahw.h
altera_tse.h
altera_tse_ethtool.c
altera_tse_main.c net: altera_tse: fix connect_local_phy error path 2019-03-05 17:58:50 +01:00
altera_utils.c
altera_utils.h
Kconfig
Makefile