[PATCH v2] tty: remove file from tty_ldisc_ops::ioctl and compat_ioctl

From: Jiri Slaby
Date: Mon Nov 22 2021 - 04:45:37 EST

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After the previous patches, noone needs 'file' parameter in neither
ioctl hook from tty_ldisc_ops. So remove 'file' from both of them.

Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> [NFC]
Acked-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Cc: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Cc: Johan Hedberg <johan.hedberg@xxxxxxxxx>
Cc: Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>
Cc: Wolfgang Grandegger <wg@xxxxxxxxxxxxxx>
Cc: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Jakub Kicinski <kuba@xxxxxxxxxx>
Cc: Andreas Koensgen <ajk@xxxxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
---
[v2]
- keep arguments aligned as they were as noted by Dmitry.

drivers/bluetooth/hci_ldisc.c | 5 ++---
drivers/input/serio/serport.c | 5 ++---
drivers/net/can/slcan.c | 4 ++--
drivers/net/hamradio/6pack.c | 4 ++--
drivers/net/hamradio/mkiss.c | 4 ++--
drivers/net/ppp/ppp_async.c | 3 +--
drivers/net/ppp/ppp_synctty.c | 3 +--
drivers/net/slip/slip.c | 4 ++--
drivers/tty/n_gsm.c | 4 ++--
drivers/tty/n_hdlc.c | 5 ++---
drivers/tty/n_tty.c | 4 ++--
drivers/tty/tty_io.c | 8 ++++----
include/linux/tty_ldisc.h | 15 +++++++--------
net/nfc/nci/uart.c | 5 ++---
14 files changed, 33 insertions(+), 40 deletions(-)

diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index ecdf8e034351..f537673ede17 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -739,14 +739,13 @@ static int hci_uart_set_flags(struct hci_uart *hu, unsigned long flags)
* Arguments:
*
* tty pointer to tty instance data
- * file pointer to open file object for device
* cmd IOCTL command code
* arg argument for IOCTL call (cmd dependent)
*
* Return Value: Command dependent
*/
-static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int hci_uart_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
struct hci_uart *hu = tty->disc_data;
int err = 0;
diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c
index 17eb8f2aa48d..669a728095b8 100644
--- a/drivers/input/serio/serport.c
+++ b/drivers/input/serio/serport.c
@@ -207,8 +207,8 @@ static void serport_set_type(struct tty_struct *tty, unsigned long type)
* serport_ldisc_ioctl() allows to set the port protocol, and device ID
*/

-static int serport_ldisc_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int serport_ldisc_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
if (cmd == SPIOCSTYPE) {
unsigned long type;
@@ -226,7 +226,6 @@ static int serport_ldisc_ioctl(struct tty_struct *tty, struct file *file,
#ifdef CONFIG_COMPAT
#define COMPAT_SPIOCSTYPE _IOW('q', 0x01, compat_ulong_t)
static int serport_ldisc_compat_ioctl(struct tty_struct *tty,
- struct file *file,
unsigned int cmd, unsigned long arg)
{
if (cmd == COMPAT_SPIOCSTYPE) {
diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index 9a4ebda30510..113763790ac9 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -670,8 +670,8 @@ static void slcan_hangup(struct tty_struct *tty)
}

/* Perform I/O control on an active SLCAN channel. */
-static int slcan_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int slcan_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
struct slcan *sl = (struct slcan *) tty->disc_data;
unsigned int tmp;
diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 8a19a06b505d..b1fc153125d9 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -681,8 +681,8 @@ static void sixpack_close(struct tty_struct *tty)
}

/* Perform I/O control on an active 6pack channel. */
-static int sixpack_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int sixpack_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
struct sixpack *sp = sp_get(tty);
struct net_device *dev;
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index e2b332b54f06..894b5f92b85f 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -804,8 +804,8 @@ static void mkiss_close(struct tty_struct *tty)
}

/* Perform I/O control on an active ax25 channel. */
-static int mkiss_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int mkiss_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
struct mkiss *ax = mkiss_get(tty);
struct net_device *dev;
diff --git a/drivers/net/ppp/ppp_async.c b/drivers/net/ppp/ppp_async.c
index f4429b93a9c8..15a179631903 100644
--- a/drivers/net/ppp/ppp_async.c
+++ b/drivers/net/ppp/ppp_async.c
@@ -281,8 +281,7 @@ ppp_asynctty_write(struct tty_struct *tty, struct file *file,
*/

static int
-ppp_asynctty_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+ppp_asynctty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
{
struct asyncppp *ap = ap_get(tty);
int err, val;
diff --git a/drivers/net/ppp/ppp_synctty.c b/drivers/net/ppp/ppp_synctty.c
index b3a71b409a80..18283b7b94bc 100644
--- a/drivers/net/ppp/ppp_synctty.c
+++ b/drivers/net/ppp/ppp_synctty.c
@@ -274,8 +274,7 @@ ppp_sync_write(struct tty_struct *tty, struct file *file,
}

static int
-ppp_synctty_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+ppp_synctty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
{
struct syncppp *ap = sp_get(tty);
int __user *p = (int __user *)arg;
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
index 9f3b4c1aa5ce..98f586f910fb 100644
--- a/drivers/net/slip/slip.c
+++ b/drivers/net/slip/slip.c
@@ -1072,8 +1072,8 @@ static void slip_unesc6(struct slip *sl, unsigned char s)
#endif /* CONFIG_SLIP_MODE_SLIP6 */

/* Perform I/O control on an active SLIP channel. */
-static int slip_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int slip_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
struct slip *sl = tty->disc_data;
unsigned int tmp;
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 68e6df27d2e3..ba27b274c967 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -2687,8 +2687,8 @@ static __poll_t gsmld_poll(struct tty_struct *tty, struct file *file,
return mask;
}

-static int gsmld_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int gsmld_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
struct gsm_config c;
struct gsm_mux *gsm = tty->disc_data;
diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
index 7e0884ecc74f..a66915032e7e 100644
--- a/drivers/tty/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
@@ -572,14 +572,13 @@ static ssize_t n_hdlc_tty_write(struct tty_struct *tty, struct file *file,
/**
* n_hdlc_tty_ioctl - process IOCTL system call for the tty device.
* @tty: pointer to tty instance data
- * @file: pointer to open file object for device
* @cmd: IOCTL command code
* @arg: argument for IOCTL call (cmd dependent)
*
* Returns command dependent result.
*/
-static int n_hdlc_tty_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int n_hdlc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
struct n_hdlc *n_hdlc = tty->disc_data;
int error = 0;
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 9fc2319a394d..2d64d93805af 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2400,8 +2400,8 @@ static unsigned long inq_canon(struct n_tty_data *ldata)
return nr;
}

-static int n_tty_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int n_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
struct n_tty_data *ldata = tty->disc_data;
int retval;
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 99cad1560876..3c2349b2089c 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2811,7 +2811,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return hung_up_tty_ioctl(file, cmd, arg);
retval = -EINVAL;
if (ld->ops->ioctl) {
- retval = ld->ops->ioctl(tty, file, cmd, arg);
+ retval = ld->ops->ioctl(tty, cmd, arg);
if (retval == -ENOIOCTLCMD)
retval = -ENOTTY;
}
@@ -2990,10 +2990,10 @@ static long tty_compat_ioctl(struct file *file, unsigned int cmd,
if (!ld)
return hung_up_tty_compat_ioctl(file, cmd, arg);
if (ld->ops->compat_ioctl)
- retval = ld->ops->compat_ioctl(tty, file, cmd, arg);
+ retval = ld->ops->compat_ioctl(tty, cmd, arg);
if (retval == -ENOIOCTLCMD && ld->ops->ioctl)
- retval = ld->ops->ioctl(tty, file,
- (unsigned long)compat_ptr(cmd), arg);
+ retval = ld->ops->ioctl(tty, (unsigned long)compat_ptr(cmd),
+ arg);
tty_ldisc_deref(ld);

return retval;
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index b85d84fb5f49..25f07017bbad 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -45,8 +45,7 @@ struct tty_struct;
* some processing on the characters first. If this function is
* not defined, the user will receive an EIO error.
*
- * int (*ioctl)(struct tty_struct * tty, struct file * file,
- * unsigned int cmd, unsigned long arg);
+ * int (*ioctl)(struct tty_struct *tty, unsigned int cmd, unsigned long arg);
*
* This function is called when the user requests an ioctl which
* is not handled by the tty layer or the low-level tty driver.
@@ -56,8 +55,8 @@ struct tty_struct;
* low-level driver can "grab" an ioctl request before the line
* discpline has a chance to see it.
*
- * int (*compat_ioctl)(struct tty_struct * tty, struct file * file,
- * unsigned int cmd, unsigned long arg);
+ * int (*compat_ioctl)(struct tty_struct *tty, unsigned int cmd,
+ * unsigned long arg);
*
* Process ioctl calls from 32-bit process on 64-bit system
*
@@ -192,10 +191,10 @@ struct tty_ldisc_ops {
void **cookie, unsigned long offset);
ssize_t (*write)(struct tty_struct *tty, struct file *file,
const unsigned char *buf, size_t nr);
- int (*ioctl)(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg);
- int (*compat_ioctl)(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg);
+ int (*ioctl)(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg);
+ int (*compat_ioctl)(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg);
void (*set_termios)(struct tty_struct *tty, struct ktermios *old);
__poll_t (*poll)(struct tty_struct *, struct file *,
struct poll_table_struct *);
diff --git a/net/nfc/nci/uart.c b/net/nfc/nci/uart.c
index c027c76d493c..cc8fa9e36159 100644
--- a/net/nfc/nci/uart.c
+++ b/net/nfc/nci/uart.c
@@ -317,14 +317,13 @@ static void nci_uart_tty_receive(struct tty_struct *tty, const u8 *data,
* Arguments:
*
* tty pointer to tty instance data
- * file pointer to open file object for device
* cmd IOCTL command code
* arg argument for IOCTL call (cmd dependent)
*
* Return Value: Command dependent
*/
-static int nci_uart_tty_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int nci_uart_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
struct nci_uart *nu = (void *)tty->disc_data;
int err = 0;
--
2.33.1

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