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| author |   Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-08-23 17:18:39 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-30 14:23:05 +0200 |
| commit | 1a9a59104646417ef2d71a7dcfc5243672c9d8e6 (patch) | |
| tree | 0e8e40212f8e6be51c7328abdf144871b0757043 /drivers/tty | |
| parent | serial: sh-sci: tail is already on valid range (diff) | |
| download | linux-dev-1a9a59104646417ef2d71a7dcfc5243672c9d8e6.tar.xz linux-dev-1a9a59104646417ef2d71a7dcfc5243672c9d8e6.zip | |
serial: pch_uart: CIRC_CNT_TO_END() is enough
Testing also CIRC_CNT() with CIRC_CNT_TO_END() is unnecessary because
to latter alone covers all necessary cases.
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220823141839.165244-3-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/pch_uart.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index 11ba5df0618f..c59ce7886579 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -898,9 +898,7 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv) fifo_size--; } - bytes = min((int)CIRC_CNT(xmit->head, xmit->tail, - UART_XMIT_SIZE), CIRC_CNT_TO_END(xmit->head, - xmit->tail, UART_XMIT_SIZE)); + bytes = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE); if (!bytes) { dev_dbg(priv->port.dev, "%s 0 bytes return\n", __func__); pch_uart_hal_disable_interrupt(priv, PCH_UART_HAL_TX_INT); |