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tty: remove dummy tty_ldisc_ops::poll() implementations

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tty_ldisc_ops::poll() is optional and needs not be provided. It is equal
to returning 0. So remove all those from the code.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230810091510.13006-4-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE)
2023-08-10 11:14:37 +02:00
committed by Greg Kroah-Hartman
parent abb05ac9f7
commit 6e5710e71d
4 changed files with 0 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/bluetooth/hci_ldisc.c
-7
View File
@@ -818,12 +818,6 @@ static ssize_t hci_uart_tty_write(struct tty_struct *tty, struct file *file,
return 0;
}
static __poll_t hci_uart_tty_poll(struct tty_struct *tty,
struct file *filp, poll_table *wait)
{
return 0;
}
static struct tty_ldisc_ops hci_uart_ldisc = {
.owner = THIS_MODULE,
.num = N_HCI,
@@ -834,7 +828,6 @@ static struct tty_ldisc_ops hci_uart_ldisc = {
.write = hci_uart_tty_write,
.ioctl = hci_uart_tty_ioctl,
.compat_ioctl = hci_uart_tty_ioctl,
.poll = hci_uart_tty_poll,
.receive_buf = hci_uart_tty_receive,
.write_wakeup = hci_uart_tty_wakeup,
};
drivers/net/ppp/ppp_async.c
-8
View File
@@ -328,13 +328,6 @@ ppp_asynctty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
return err;
}
/* No kernel lock - fine */
static __poll_t
ppp_asynctty_poll(struct tty_struct *tty, struct file *file, poll_table *wait)
{
return 0;
}
/* May sleep, don't call from interrupt level or with interrupts disabled */
static void
ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf,
@@ -378,7 +371,6 @@ static struct tty_ldisc_ops ppp_ldisc = {
.read = ppp_asynctty_read,
.write = ppp_asynctty_write,
.ioctl = ppp_asynctty_ioctl,
.poll = ppp_asynctty_poll,
.receive_buf = ppp_asynctty_receive,
.write_wakeup = ppp_asynctty_wakeup,
};
drivers/net/ppp/ppp_synctty.c
-8
View File
@@ -321,13 +321,6 @@ ppp_synctty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
return err;
}
/* No kernel lock - fine */
static __poll_t
ppp_sync_poll(struct tty_struct *tty, struct file *file, poll_table *wait)
{
return 0;
}
/* May sleep, don't call from interrupt level or with interrupts disabled */
static void
ppp_sync_receive(struct tty_struct *tty, const unsigned char *buf,
@@ -371,7 +364,6 @@ static struct tty_ldisc_ops ppp_sync_ldisc = {
.read = ppp_sync_read,
.write = ppp_sync_write,
.ioctl = ppp_synctty_ioctl,
.poll = ppp_sync_poll,
.receive_buf = ppp_sync_receive,
.write_wakeup = ppp_sync_wakeup,
};
net/nfc/nci/uart.c
-7
View File
@@ -357,12 +357,6 @@ static ssize_t nci_uart_tty_write(struct tty_struct *tty, struct file *file,
return 0;
}
static __poll_t nci_uart_tty_poll(struct tty_struct *tty,
struct file *filp, poll_table *wait)
{
return 0;
}
static int nci_uart_send(struct nci_uart *nu, struct sk_buff *skb)
{
/* Queue TX packet */
@@ -435,7 +429,6 @@ static struct tty_ldisc_ops nci_uart_ldisc = {
.close = nci_uart_tty_close,
.read = nci_uart_tty_read,
.write = nci_uart_tty_write,
.poll = nci_uart_tty_poll,
.receive_buf = nci_uart_tty_receive,
.write_wakeup = nci_uart_tty_wakeup,
.ioctl = nci_uart_tty_ioctl,