Merge tag 'tty-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver updates from Greg KH:
 "Here is the big set of tty and serial driver changes for 6.6-rc1.

  Lots of cleanups in here this cycle, and some driver updates. Short
  summary is:

   - Jiri's continued work to make the tty code and apis be a bit more
     sane with regards to modern kernel coding style and types

   - cpm_uart driver updates

   - n_gsm updates and fixes

   - meson driver updates

   - sc16is7xx driver updates

   - 8250 driver updates for different hardware types

   - qcom-geni driver fixes

   - tegra serial driver change

   - stm32 driver updates

   - synclink_gt driver cleanups

   - tty structure size reduction

  All of these have been in linux-next this week with no reported
  issues. The last bit of cleanups from Jiri and the tty structure size
  reduction came in last week, a bit late but as they were just style
  changes and size reductions, I figured they should get into this merge
  cycle so that others can work on top of them with no merge conflicts"

* tag 'tty-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits)
  tty: shrink the size of struct tty_struct by 40 bytes
  tty: n_tty: deduplicate copy code in n_tty_receive_buf_real_raw()
  tty: n_tty: extract ECHO_OP processing to a separate function
  tty: n_tty: unify counts to size_t
  tty: n_tty: use u8 for chars and flags
  tty: n_tty: simplify chars_in_buffer()
  tty: n_tty: remove unsigned char casts from character constants
  tty: n_tty: move newline handling to a separate function
  tty: n_tty: move canon handling to a separate function
  tty: n_tty: use MASK() for masking out size bits
  tty: n_tty: make n_tty_data::num_overrun unsigned
  tty: n_tty: use time_is_before_jiffies() in n_tty_receive_overrun()
  tty: n_tty: use 'num' for writes' counts
  tty: n_tty: use output character directly
  tty: n_tty: make flow of n_tty_receive_buf_common() a bool
  Revert "tty: serial: meson: Add a earlycon for the T7 SoC"
  Documentation: devices.txt: Fix minors for ttyCPM*
  Documentation: devices.txt: Remove ttySIOC*
  Documentation: devices.txt: Remove ttyIOC*
  serial: 8250_bcm7271: improve bcm7271 8250 port
  ...

2 files changed, 16 insertions, 36 deletions

diff --git a/drivers/net/ppp/ppp_async.c b/drivers/net/ppp/ppp_async.c
index 15a179631903..fbaaa8c102a1 100644
--- a/drivers/net/ppp/ppp_async.c
+++ b/drivers/net/ppp/ppp_async.c
@@ -98,7 +98,7 @@ static int ppp_async_send(struct ppp_channel *chan, struct sk_buff *skb);
 static int ppp_async_push(struct asyncppp *ap);
 static void ppp_async_flush_output(struct asyncppp *ap);
 static void ppp_async_input(struct asyncppp *ap, const unsigned char *buf,
-			    const char *flags, int count);
+			    const u8 *flags, int count);
 static int ppp_async_ioctl(struct ppp_channel *chan, unsigned int cmd,
 			   unsigned long arg);
 static void ppp_async_process(struct tasklet_struct *t);
@@ -257,9 +257,8 @@ static void ppp_asynctty_hangup(struct tty_struct *tty)
  * Pppd reads and writes packets via /dev/ppp instead.
  */
 static ssize_t
-ppp_asynctty_read(struct tty_struct *tty, struct file *file,
-		  unsigned char *buf, size_t count,
-		  void **cookie, unsigned long offset)
+ppp_asynctty_read(struct tty_struct *tty, struct file *file, u8 *buf,
+		  size_t count, void **cookie, unsigned long offset)
 {
 	return -EAGAIN;
 }
@@ -269,8 +268,8 @@ ppp_asynctty_read(struct tty_struct *tty, struct file *file,
  * from the ppp generic stuff.
  */
 static ssize_t
-ppp_asynctty_write(struct tty_struct *tty, struct file *file,
-		   const unsigned char *buf, size_t count)
+ppp_asynctty_write(struct tty_struct *tty, struct file *file, const u8 *buf,
+		   size_t count)
 {
 	return -EAGAIN;
 }
@@ -328,17 +327,10 @@ 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,
-		  const char *cflags, int count)
+ppp_asynctty_receive(struct tty_struct *tty, const u8 *buf, const u8 *cflags,
+		     size_t count)
 {
 	struct asyncppp *ap = ap_get(tty);
 	unsigned long flags;
@@ -378,7 +370,6 @@ 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,
 };
@@ -827,8 +818,7 @@ process_input_packet(struct asyncppp *ap)
    other ldisc functions but will not be re-entered */
 
 static void
-ppp_async_input(struct asyncppp *ap, const unsigned char *buf,
-		const char *flags, int count)
+ppp_async_input(struct asyncppp *ap, const u8 *buf, const u8 *flags, int count)
 {
 	struct sk_buff *skb;
 	int c, i, j, n, s, f;
diff --git a/drivers/net/ppp/ppp_synctty.c b/drivers/net/ppp/ppp_synctty.c
index 18283b7b94bc..ebcdffdf4f0e 100644
--- a/drivers/net/ppp/ppp_synctty.c
+++ b/drivers/net/ppp/ppp_synctty.c
@@ -93,8 +93,8 @@ static int ppp_sync_ioctl(struct ppp_channel *chan, unsigned int cmd,
 static void ppp_sync_process(struct tasklet_struct *t);
 static int ppp_sync_push(struct syncppp *ap);
 static void ppp_sync_flush_output(struct syncppp *ap);
-static void ppp_sync_input(struct syncppp *ap, const unsigned char *buf,
-			   const char *flags, int count);
+static void ppp_sync_input(struct syncppp *ap, const u8 *buf, const u8 *flags,
+			   int count);
 
 static const struct ppp_channel_ops sync_ops = {
 	.start_xmit = ppp_sync_send,
@@ -255,8 +255,7 @@ static void ppp_sync_hangup(struct tty_struct *tty)
  * Pppd reads and writes packets via /dev/ppp instead.
  */
 static ssize_t
-ppp_sync_read(struct tty_struct *tty, struct file *file,
-	      unsigned char *buf, size_t count,
+ppp_sync_read(struct tty_struct *tty, struct file *file, u8 *buf, size_t count,
 	      void **cookie, unsigned long offset)
 {
 	return -EAGAIN;
@@ -267,8 +266,8 @@ ppp_sync_read(struct tty_struct *tty, struct file *file,
  * from the ppp generic stuff.
  */
 static ssize_t
-ppp_sync_write(struct tty_struct *tty, struct file *file,
-		const unsigned char *buf, size_t count)
+ppp_sync_write(struct tty_struct *tty, struct file *file, const u8 *buf,
+	       size_t count)
 {
 	return -EAGAIN;
 }
@@ -321,17 +320,10 @@ 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,
-		  const char *cflags, int count)
+ppp_sync_receive(struct tty_struct *tty, const u8 *buf, const u8 *cflags,
+		 size_t count)
 {
 	struct syncppp *ap = sp_get(tty);
 	unsigned long flags;
@@ -371,7 +363,6 @@ 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,
 };
@@ -663,8 +654,7 @@ ppp_sync_flush_output(struct syncppp *ap)
  * frame is considered to be in error and is tossed.
  */
 static void
-ppp_sync_input(struct syncppp *ap, const unsigned char *buf,
-		const char *flags, int count)
+ppp_sync_input(struct syncppp *ap, const u8 *buf, const u8 *flags, int count)
 {
 	struct sk_buff *skb;
 	unsigned char *p;