[PATCH 3/5] tty: srmcons: use 'count' directly in srmcons_do_write()

From: Jiri Slaby (SUSE)
Date: Mon Nov 27 2023 - 07:37:26 EST


Similarly to 'buf' in the previous patch, there is no need to have a
separate counter ('remaining') in srmcons_do_write(). 'count' can be
used directly which simplifies the code a bit.

Note that the type of the current count ('c') is changed from 'long' to
'size_t' so that:
1) it is prepared for the upcoming change of 'count's type, and
2) is unsigned.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx>
Reviewed-by: Richard Henderson <richard.henderson@xxxxxxxxxx>
Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>
Cc: Matt Turner <mattst88@xxxxxxxxx>
Cc: linux-alpha@xxxxxxxxxxxxxxx
---

Notes:
[v2] reordered so that it makes sense

arch/alpha/kernel/srmcons.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c
index de896fa9829e..32bc098de7da 100644
--- a/arch/alpha/kernel/srmcons.c
+++ b/arch/alpha/kernel/srmcons.c
@@ -92,24 +92,24 @@ static void
srmcons_do_write(struct tty_port *port, const char *buf, int count)
{
static char str_cr[1] = "\r";
- long c, remaining = count;
+ size_t c;
srmcons_result result;
int need_cr;

- while (remaining > 0) {
+ while (count > 0) {
need_cr = 0;
/*
* 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++)
+ for (c = 0; c < min_t(size_t, 128U, count) && !need_cr; c++)
if (buf[c] == '\n')
need_cr = 1;

while (c > 0) {
result.as_long = callback_puts(0, buf, c);
c -= result.bits.c;
- remaining -= result.bits.c;
+ count -= result.bits.c;
buf += result.bits.c;

/*
--
2.42.1