* [PATCH v2] net: usb: hso: use swap macro in hso_kick_transmit
@ 2018-07-12 19:43 Gustavo A. R. Silva
2018-07-16 20:35 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Gustavo A. R. Silva @ 2018-07-12 19:43 UTC (permalink / raw)
To: David S. Miller; +Cc: linux-usb, netdev, linux-kernel, Gustavo A. R. Silva
Make use of the swap macro and remove unnecessary variable *temp*.
This makes the code easier to read and maintain. Also, slightly
refactor some code due to the removal of *temp*.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
Changes in v2:
- Check serial->tx_data instead of temp.
drivers/net/usb/hso.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index de305ea..184c24b 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -1732,7 +1732,6 @@ static int hso_serial_ioctl(struct tty_struct *tty,
/* starts a transmit */
static void hso_kick_transmit(struct hso_serial *serial)
{
- u8 *temp;
unsigned long flags;
int res;
@@ -1748,14 +1747,12 @@ static void hso_kick_transmit(struct hso_serial *serial)
goto out;
/* Switch pointers around to avoid memcpy */
- temp = serial->tx_buffer;
- serial->tx_buffer = serial->tx_data;
- serial->tx_data = temp;
+ swap(serial->tx_buffer, serial->tx_data);
serial->tx_data_count = serial->tx_buffer_count;
serial->tx_buffer_count = 0;
- /* If temp is set, it means we switched buffers */
- if (temp && serial->write_data) {
+ /* If serial->tx_data is set, it means we switched buffers */
+ if (serial->tx_data && serial->write_data) {
res = serial->write_data(serial);
if (res >= 0)
serial->tx_urb_used = 1;
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] net: usb: hso: use swap macro in hso_kick_transmit
2018-07-12 19:43 [PATCH v2] net: usb: hso: use swap macro in hso_kick_transmit Gustavo A. R. Silva
@ 2018-07-16 20:35 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2018-07-16 20:35 UTC (permalink / raw)
To: gustavo; +Cc: linux-usb, netdev, linux-kernel
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Thu, 12 Jul 2018 14:43:20 -0500
> Make use of the swap macro and remove unnecessary variable *temp*.
> This makes the code easier to read and maintain. Also, slightly
> refactor some code due to the removal of *temp*.
>
> This code was detected with the help of Coccinelle.
>
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
> ---
> Changes in v2:
> - Check serial->tx_data instead of temp.
Applied to net-next.
^ permalink raw reply [flat|nested] 2+ messages in thread
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