From 50ba0232fd5312410f1b65247e774244f89a628e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 18 May 2024 20:50:36 +0200 Subject: Merging upstream version 6.8.9. Signed-off-by: Daniel Baumann --- arch/alpha/kernel/srmcons.c | 34 +++++++++++++++------------------- 1 file changed, 15 insertions(+), 19 deletions(-) (limited to 'arch/alpha/kernel/srmcons.c') diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c index d6139dbae..feaf89f69 100644 --- a/arch/alpha/kernel/srmcons.c +++ b/arch/alpha/kernel/srmcons.c @@ -53,7 +53,7 @@ srmcons_do_receive_chars(struct tty_port *port) do { result.as_long = callback_getc(0); if (result.bits.status < 2) { - tty_insert_flip_char(port, (char)result.bits.c, 0); + tty_insert_flip_char(port, (u8)result.bits.c, 0); count++; } } while((result.bits.status & 1) && (++loops < 10)); @@ -88,30 +88,27 @@ srmcons_receive_chars(struct timer_list *t) } /* called with callback_lock held */ -static int -srmcons_do_write(struct tty_port *port, const char *buf, int count) +static void +srmcons_do_write(struct tty_port *port, const u8 *buf, size_t count) { - static char str_cr[1] = "\r"; - long c, remaining = count; + size_t c; srmcons_result result; - char *cur; - int need_cr; - for (cur = (char *)buf; remaining > 0; ) { - need_cr = 0; + while (count > 0) { + bool need_cr = false; /* * Break it up into reasonable size chunks to allow a chance * for input to get in */ - for (c = 0; c < min_t(long, 128L, remaining) && !need_cr; c++) - if (cur[c] == '\n') - need_cr = 1; + for (c = 0; c < min_t(size_t, 128U, count) && !need_cr; c++) + if (buf[c] == '\n') + need_cr = true; while (c > 0) { - result.as_long = callback_puts(0, cur, c); + result.as_long = callback_puts(0, buf, c); c -= result.bits.c; - remaining -= result.bits.c; - cur += result.bits.c; + count -= result.bits.c; + buf += result.bits.c; /* * Check for pending input iff a tty port was provided @@ -121,12 +118,11 @@ srmcons_do_write(struct tty_port *port, const char *buf, int count) } while (need_cr) { - result.as_long = callback_puts(0, str_cr, 1); + result.as_long = callback_puts(0, "\r", 1); if (result.bits.c > 0) - need_cr = 0; + need_cr = false; } } - return count; } static ssize_t @@ -135,7 +131,7 @@ srmcons_write(struct tty_struct *tty, const u8 *buf, size_t count) unsigned long flags; spin_lock_irqsave(&srmcons_callback_lock, flags); - srmcons_do_write(tty->port, (const char *) buf, count); + srmcons_do_write(tty->port, buf, count); spin_unlock_irqrestore(&srmcons_callback_lock, flags); return count; -- cgit v1.2.3