From: Jiri Slaby <jslaby@suse.cz>
To: gregkh@linuxfoundation.org
Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
Jiri Slaby <jslaby@suse.cz>
Subject: [PATCH 17/24] n_hdlc: switch tbusy and woke_up to bools
Date: Wed, 19 Feb 2020 09:41:11 +0100 [thread overview]
Message-ID: <20200219084118.26491-17-jslaby@suse.cz> (raw)
In-Reply-To: <20200219084118.26491-1-jslaby@suse.cz>
They are in fact bools, so save some bytes (8B on x86_64). Also describe
@woke_up as we know what it is.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/tty/n_hdlc.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
index 615abe582cac..c4fe09124185 100644
--- a/drivers/tty/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
@@ -125,7 +125,7 @@ struct n_hdlc_buf_list {
* struct n_hdlc - per device instance data structure
* @magic - magic value for structure
* @tbusy - reentrancy flag for tx wakeup code
- * @woke_up - FIXME: describe this field
+ * @woke_up - tx wakeup needs to be run again as it was called while @tbusy
* @tx_buf_list - list of pending transmit frame buffers
* @rx_buf_list - list of received frame buffers
* @tx_free_buf_list - list unused transmit frame buffers
@@ -133,8 +133,8 @@ struct n_hdlc_buf_list {
*/
struct n_hdlc {
int magic;
- int tbusy;
- int woke_up;
+ bool tbusy;
+ bool woke_up;
struct n_hdlc_buf_list tx_buf_list;
struct n_hdlc_buf_list rx_buf_list;
struct n_hdlc_buf_list tx_free_buf_list;
@@ -275,12 +275,12 @@ static void n_hdlc_send_frames(struct n_hdlc *n_hdlc, struct tty_struct *tty)
spin_lock_irqsave(&n_hdlc->tx_buf_list.spinlock, flags);
if (n_hdlc->tbusy) {
- n_hdlc->woke_up = 1;
- spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock, flags);
+ n_hdlc->woke_up = true;
+ spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock, flags);
return;
}
- n_hdlc->tbusy = 1;
- n_hdlc->woke_up = 0;
+ n_hdlc->tbusy = true;
+ n_hdlc->woke_up = false;
spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock, flags);
tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);
@@ -332,7 +332,7 @@ static void n_hdlc_send_frames(struct n_hdlc *n_hdlc, struct tty_struct *tty)
/* Clear the re-entry flag */
spin_lock_irqsave(&n_hdlc->tx_buf_list.spinlock, flags);
- n_hdlc->tbusy = 0;
+ n_hdlc->tbusy = false;
spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock, flags);
if (n_hdlc->woke_up)
--
2.25.0
next prev parent reply other threads:[~2020-02-19 8:41 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-19 8:40 [PATCH 01/24] n_hdlc: remove tracing debug prints Jiri Slaby
2020-02-19 8:40 ` [PATCH 02/24] n_hdlc: remove unused macros Jiri Slaby
2020-02-19 8:40 ` [PATCH 03/24] n_hdlc: convert debuglevel use to pr_debug Jiri Slaby
2020-02-19 12:20 ` Joe Perches
2020-02-20 12:45 ` Greg KH
2020-02-21 8:16 ` Jiri Slaby
2020-02-19 8:40 ` [PATCH 04/24] n_hdlc: put init/exit strings directly to prints Jiri Slaby
2020-02-19 8:40 ` [PATCH 05/24] n_hdlc: cleanup messages during registration Jiri Slaby
2020-02-19 8:41 ` [PATCH 06/24] n_hdlc: use clamp() for maxframe Jiri Slaby
2020-02-19 8:41 ` [PATCH 07/24] n_hdlc: simplify freeing of buffer list Jiri Slaby
2020-02-19 8:41 ` [PATCH 08/24] n_hdlc: invert conditions in n_hdlc_tty_close and n_hdlc_tty_poll Jiri Slaby
2020-02-19 8:41 ` [PATCH 09/24] n_hdlc: remove unused flags Jiri Slaby
2020-02-19 8:41 ` [PATCH 10/24] n_hdlc: remove unused backup_tty Jiri Slaby
2020-02-19 8:41 ` [PATCH 11/24] n_hdlc: expand tty2n_hdlc macro Jiri Slaby
2020-02-19 8:41 ` [PATCH 12/24] n_hdlc: inline n_hdlc_release Jiri Slaby
2020-02-19 8:41 ` [PATCH 13/24] n_hdlc: remove cached tty Jiri Slaby
2020-02-19 8:41 ` [PATCH 14/24] n_hdlc: remove checking of n_hdlc Jiri Slaby
2020-02-19 8:41 ` [PATCH 15/24] n_hdlc: add helper for buffers allocation Jiri Slaby
2020-02-19 8:41 ` [PATCH 16/24] n_hdlc: move tty_ldisc_ops to the bottom Jiri Slaby
2020-02-19 8:41 ` Jiri Slaby [this message]
2020-02-19 8:41 ` [PATCH 18/24] n_hdlc: remove unneeded ifdef Jiri Slaby
2020-02-19 8:41 ` [PATCH 19/24] n_hdlc: use __func__ and pr_ print helpers Jiri Slaby
2020-02-19 8:41 ` [PATCH 20/24] n_hdlc: remove useless whitespace at line wraps Jiri Slaby
2020-02-19 8:41 ` [PATCH 21/24] n_hdlc: remove spaces between function name and ( Jiri Slaby
2020-02-19 8:41 ` [PATCH 22/24] n_hdlc: add missing spaces after commas Jiri Slaby
2020-02-19 8:41 ` [PATCH 23/24] n_hdlc: fix whitespace around binary operators Jiri Slaby
2020-02-19 8:41 ` [PATCH 24/24] n_hdlc: wrap a comment properly Jiri Slaby
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