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From: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
To: gregkh@linuxfoundation.org
Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Jiri Slaby (SUSE)" <jirislaby@kernel.org>,
	Richard Henderson <richard.henderson@linaro.org>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	linux-alpha@vger.kernel.org
Subject: [PATCH 13/17] tty: srmcons: use 'buf' directly in srmcons_do_write()
Date: Tue, 21 Nov 2023 10:22:54 +0100	[thread overview]
Message-ID: <20231121092258.9334-14-jirislaby@kernel.org> (raw)
In-Reply-To: <20231121092258.9334-1-jirislaby@kernel.org>

There is no need to have a separate iterator ('cur') through 'buf' in
srmcons_do_write(). 'buf' can be used directly which simplifies the code
a bit.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-alpha@vger.kernel.org
---
 arch/alpha/kernel/srmcons.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c
index d6139dbae4ac..b68c5af083cd 100644
--- a/arch/alpha/kernel/srmcons.c
+++ b/arch/alpha/kernel/srmcons.c
@@ -94,24 +94,23 @@ srmcons_do_write(struct tty_port *port, const char *buf, int count)
 	static char str_cr[1] = "\r";
 	long c, remaining = count;
 	srmcons_result result;
-	char *cur;
 	int need_cr;
 
-	for (cur = (char *)buf; remaining > 0; ) {
+	while (remaining > 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++)
-			if (cur[c] == '\n')
+			if (buf[c] == '\n')
 				need_cr = 1;
 		
 		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;
+			buf += result.bits.c;
 
 			/*
 			 * Check for pending input iff a tty port was provided
-- 
2.42.1


  parent reply	other threads:[~2023-11-21  9:24 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-21  9:22 [PATCH 00/17] tty: small cleanups and fixes Jiri Slaby (SUSE)
2023-11-21  9:22 ` Jiri Slaby (SUSE)
2023-11-21  9:22 ` [PATCH 01/17] tty: deprecate tty_write_message() Jiri Slaby (SUSE)
2023-11-21 14:41   ` Jan Kara
2023-11-21  9:22 ` [PATCH 02/17] tty: remove unneeded mbz from tiocsti() Jiri Slaby (SUSE)
2023-11-21  9:22 ` [PATCH 03/17] tty: fix tty_operations types in documentation Jiri Slaby (SUSE)
2023-11-21  9:22 ` [PATCH 04/17] tty: move locking docs out of Returns for functions in tty.h Jiri Slaby (SUSE)
2023-11-21  9:48   ` Ilpo Järvinen
2023-11-22  6:45     ` Jiri Slaby
2023-11-22  6:53       ` Jiri Slaby
2023-11-22 10:26         ` Ilpo Järvinen
2023-11-21  9:22 ` [PATCH 05/17] tty: amiserial: return from receive_chars() without goto Jiri Slaby (SUSE)
2023-11-21  9:22 ` [PATCH 06/17] tty: amiserial: use bool and rename overrun flag in receive_chars() Jiri Slaby (SUSE)
2023-11-21  9:22 ` [PATCH 07/17] tty: ehv_bytecha: use memcpy_and_pad() in local_ev_byte_channel_send() Jiri Slaby (SUSE)
2023-11-21  9:22   ` Jiri Slaby (SUSE)
2023-11-21  9:22 ` [PATCH 08/17] tty: goldfish: drop unneeded temporary variables Jiri Slaby (SUSE)
2023-11-21  9:22 ` [PATCH 09/17] tty: hso: don't emit load/unload info to the log Jiri Slaby (SUSE)
2023-11-21 22:30   ` Jakub Kicinski
2023-11-21  9:22 ` [PATCH 10/17] tty: hso: don't initialize global serial_table Jiri Slaby (SUSE)
2023-11-21 22:30   ` Jakub Kicinski
2023-11-21  9:22 ` [PATCH 11/17] tty: hvc_console: use flexible array for outbuf Jiri Slaby (SUSE)
2023-11-21  9:22   ` Jiri Slaby (SUSE)
2023-11-21  9:22 ` [PATCH 12/17] tty: nozomi: remove unused debugging DUMP() Jiri Slaby (SUSE)
2023-11-21  9:22 ` Jiri Slaby (SUSE) [this message]
2023-11-21 17:47   ` [PATCH 13/17] tty: srmcons: use 'buf' directly in srmcons_do_write() Richard Henderson
2023-11-21  9:22 ` [PATCH 14/17] tty: srmcons: use 'count' " Jiri Slaby (SUSE)
2023-11-21 15:21   ` Ilpo Järvinen
2023-11-21 17:48     ` Richard Henderson
2023-11-22  6:26       ` Jiri Slaby
2023-11-21  9:22 ` [PATCH 15/17] tty: srmcons: make srmcons_do_write() return void Jiri Slaby (SUSE)
2023-11-21 17:48   ` Richard Henderson
2023-11-21  9:22 ` [PATCH 16/17] tty: srmcons: switch need_cr to bool Jiri Slaby (SUSE)
2023-11-21 17:49   ` Richard Henderson
2023-11-21  9:22 ` [PATCH 17/17] tty: srmcons: make 'str_cr' const and non-array Jiri Slaby (SUSE)
2023-11-21 15:28   ` Ilpo Järvinen
2023-11-22  6:32     ` Jiri Slaby
2023-11-21 17:52   ` Richard Henderson
2023-11-21 17:58   ` Richard Henderson
2023-11-23 20:19 ` [PATCH 00/17] tty: small cleanups and fixes Greg KH
2023-11-23 20:19   ` Greg KH
2023-11-27  9:30   ` Jiri Slaby
2023-11-27  9:30     ` Jiri Slaby

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