diff options
| author |   Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-08-23 17:18:38 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-30 14:23:05 +0200 |
| commit | 575ca2cb89ea1dafc4005a208e77e7cd3f3edb40 (patch) | |
| tree | 0068f99beecd1fcd56b9f687bdab53a25fd52f28 /drivers/tty | |
| parent | serial: sh-sci: CIRC_CNT_TO_END() is enough (diff) | |
| download | linux-dev-575ca2cb89ea1dafc4005a208e77e7cd3f3edb40.tar.xz linux-dev-575ca2cb89ea1dafc4005a208e77e7cd3f3edb40.zip | |
serial: sh-sci: tail is already on valid range
There is no need to and tail with UART_XMIT_SIZE - 1 because tail is
already on valid range.
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220823141839.165244-2-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index cd41fe069b89..62f773286d44 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1407,7 +1407,7 @@ static void sci_dma_tx_work_fn(struct work_struct *work) spin_lock_irq(&port->lock); head = xmit->head; tail = xmit->tail; - buf = s->tx_dma_addr + (tail & (UART_XMIT_SIZE - 1)); + buf = s->tx_dma_addr + tail; s->tx_dma_len = CIRC_CNT_TO_END(head, tail, UART_XMIT_SIZE); if (!s->tx_dma_len) { /* Transmit buffer has been flushed */ |