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um: line, remove put_char
um's put_char only calls write. And the tty layer/disciplines do the same if put_char is NULL. So we can safely remove this put_char wrapper. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Link: https://lore.kernel.org/r/20200615074856.18949-1-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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4 changed files with 0 additions and 8 deletions
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@ -184,11 +184,6 @@ void line_flush_chars(struct tty_struct *tty)
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line_flush_buffer(tty);
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}
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int line_put_char(struct tty_struct *tty, unsigned char ch)
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{
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return line_write(tty, &ch, sizeof(ch));
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}
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int line_write(struct tty_struct *tty, const unsigned char *buf, int len)
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{
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struct line *line = tty->driver_data;
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@ -66,7 +66,6 @@ extern int line_setup(char **conf, unsigned nlines, char **def,
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char *init, char *name);
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extern int line_write(struct tty_struct *tty, const unsigned char *buf,
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int len);
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extern int line_put_char(struct tty_struct *tty, unsigned char ch);
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extern void line_set_termios(struct tty_struct *tty, struct ktermios * old);
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extern int line_chars_in_buffer(struct tty_struct *tty);
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extern void line_flush_buffer(struct tty_struct *tty);
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@ -95,7 +95,6 @@ static const struct tty_operations ssl_ops = {
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.open = line_open,
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.close = line_close,
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.write = line_write,
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.put_char = line_put_char,
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.write_room = line_write_room,
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.chars_in_buffer = line_chars_in_buffer,
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.flush_buffer = line_flush_buffer,
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@ -102,7 +102,6 @@ static const struct tty_operations console_ops = {
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.install = con_install,
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.close = line_close,
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.write = line_write,
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.put_char = line_put_char,
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.write_room = line_write_room,
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.chars_in_buffer = line_chars_in_buffer,
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.flush_buffer = line_flush_buffer,
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