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
  ...

4 files changed, 14 insertions, 14 deletions

diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index a1fef666c9b08c..99361618c31f31 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -1021,8 +1021,8 @@ static unsigned int tty3215_write_room(struct tty_struct *tty)
 /*
  * String write routine for 3215 ttys
  */
-static int tty3215_write(struct tty_struct *tty,
-			 const unsigned char *buf, int count)
+static ssize_t tty3215_write(struct tty_struct *tty, const u8 *buf,
+			     size_t count)
 {
 	handle_write(tty->driver_data, buf, count);
 	return count;
@@ -1031,7 +1031,7 @@ static int tty3215_write(struct tty_struct *tty,
 /*
  * Put character routine for 3215 ttys
  */
-static int tty3215_put_char(struct tty_struct *tty, unsigned char ch)
+static int tty3215_put_char(struct tty_struct *tty, u8 ch)
 {
 	struct raw3215_info *raw = tty->driver_data;
 
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index d9983550062d72..363315fa1666d6 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -1803,8 +1803,8 @@ static void tty3270_do_write(struct tty3270 *tp, struct tty_struct *tty,
 /*
  * String write routine for 3270 ttys
  */
-static int tty3270_write(struct tty_struct *tty,
-			 const unsigned char *buf, int count)
+static ssize_t tty3270_write(struct tty_struct *tty, const u8 *buf,
+			     size_t count)
 {
 	struct tty3270 *tp;
 
@@ -1822,7 +1822,7 @@ static int tty3270_write(struct tty_struct *tty,
 /*
  * Put single characters to the ttys character buffer
  */
-static int tty3270_put_char(struct tty_struct *tty, unsigned char ch)
+static int tty3270_put_char(struct tty_struct *tty, u8 ch)
 {
 	struct tty3270 *tp;
 
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index 971fbb52740bf4..892c18d2f87e90 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -48,7 +48,7 @@ static struct sclp_buffer *sclp_ttybuf;
 static struct timer_list sclp_tty_timer;
 
 static struct tty_port sclp_port;
-static unsigned char sclp_tty_chars[SCLP_TTY_BUF_SIZE];
+static u8 sclp_tty_chars[SCLP_TTY_BUF_SIZE];
 static unsigned short int sclp_tty_chars_count;
 
 struct tty_driver *sclp_tty_driver;
@@ -168,7 +168,7 @@ sclp_tty_timeout(struct timer_list *unused)
 /*
  * Write a string to the sclp tty.
  */
-static int sclp_tty_write_string(const unsigned char *str, int count, int may_fail)
+static int sclp_tty_write_string(const u8 *str, int count, int may_fail)
 {
 	unsigned long flags;
 	void *page;
@@ -229,8 +229,8 @@ out:
  * tty device. The characters may come from user space or kernel space. This
  * routine will return the number of characters actually accepted for writing.
  */
-static int
-sclp_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
+static ssize_t
+sclp_tty_write(struct tty_struct *tty, const u8 *buf, size_t count)
 {
 	if (sclp_tty_chars_count > 0) {
 		sclp_tty_write_string(sclp_tty_chars, sclp_tty_chars_count, 0);
@@ -250,7 +250,7 @@ sclp_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
  * sclp_write() without final '\n' - will be written.
  */
 static int
-sclp_tty_put_char(struct tty_struct *tty, unsigned char ch)
+sclp_tty_put_char(struct tty_struct *tty, u8 ch)
 {
 	sclp_tty_chars[sclp_tty_chars_count++] = ch;
 	if (ch == '\n' || sclp_tty_chars_count >= SCLP_TTY_BUF_SIZE) {
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index a32f34a1c6d27f..218ae604f737ff 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -462,8 +462,8 @@ out:
  * user space or kernel space.  This routine will return the
  * number of characters actually accepted for writing.
  */
-static int
-sclp_vt220_write(struct tty_struct *tty, const unsigned char *buf, int count)
+static ssize_t
+sclp_vt220_write(struct tty_struct *tty, const u8 *buf, size_t count)
 {
 	return __sclp_vt220_write(buf, count, 1, 0, 1);
 }
@@ -579,7 +579,7 @@ sclp_vt220_close(struct tty_struct *tty, struct file *filp)
  * done stuffing characters into the driver.
  */
 static int
-sclp_vt220_put_char(struct tty_struct *tty, unsigned char ch)
+sclp_vt220_put_char(struct tty_struct *tty, u8 ch)
 {
 	return __sclp_vt220_write(&ch, 1, 0, 0, 1);
 }