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authorzhong jiang <zhongjiang@huawei.com>2018-10-23 21:21:34 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-11-09 09:07:17 -0800
commit114c97cee6d37787135bd548bbd55c283463ac62 (patch)
treed53230f55461bc61f5b529668b142f52a1559b69 /drivers/tty
parent7034ef87fa880defb4cfc2ca552641d26f425f21 (diff)
downloadlinux-114c97cee6d37787135bd548bbd55c283463ac62.tar.bz2
pch_uart: remove set but not used variable 'tx_empty'
tx_empty is not used after setting its value. It is safe to remove the unused variable. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Reviewed-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/pch_uart.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index cb85002a10d8..9ed121f08a54 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -933,7 +933,6 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv)
struct scatterlist *sg;
int nent;
int fifo_size;
- int tx_empty;
struct dma_async_tx_descriptor *desc;
int num;
int i;
@@ -958,11 +957,9 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv)
}
fifo_size = max(priv->fifo_size, 1);
- tx_empty = 1;
if (pop_tx_x(priv, xmit->buf)) {
pch_uart_hal_write(priv, xmit->buf, 1);
port->icount.tx++;
- tx_empty = 0;
fifo_size--;
}