linux-kernel - [PATCH v5 2/3] printk: rename selected_console -> preferred

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Date:   Wed, 15 Mar 2017 13:28:51 +0300
From:   Aleksey Makarov <aleksey.makarov@...aro.org>
To:     linux-serial@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Aleksey Makarov <aleksey.makarov@...aro.org>,
        Sudeep Holla <sudeep.holla@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Peter Hurley <peter@...leysoftware.com>,
        Jiri Slaby <jslaby@...e.com>,
        Robin Murphy <robin.murphy@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        "Nair, Jayachandran" <Jayachandran.Nair@...ium.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Petr Mladek <pmladek@...e.com>
Subject: [PATCH v5 2/3] printk: rename selected_console -> preferred_console

The variable selected_console is set in __add_preferred_console()
to point to the last console parameter that was added to the
console_cmdline array.

Rename it to preferred_console so that the name reflects the usage.

Petr Mladek:
"[..] the selected_console/preferred_console
value is used to keep the console first in the console_drivers list.
IMHO, the main effect is that each line will first appear on this
console, see call_console_drivers(). But the message will still
appear also on all other enabled consoles. From this point,
the name "preferred" sounds better to me. More consoles
are selected (enabled) and only one is preferred (first)."

Acked-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
Acked-by: Petr Mladek <pmladek@...e.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Suggested-by: Peter Hurley <peter@...leysoftware.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@...aro.org>
---
 kernel/printk/printk.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 80bc1b72d03d..fd752f0c8ef1 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -270,7 +270,7 @@ static struct console *exclusive_console;
 
 static struct console_cmdline console_cmdline[MAX_CMDLINECONSOLES];
 
-static int selected_console = -1;
+static int preferred_console = -1;
 int console_set_on_cmdline;
 EXPORT_SYMBOL(console_set_on_cmdline);
 
@@ -1910,14 +1910,14 @@ static int __add_preferred_console(char *name, int idx, char *options,
 	     i++, c++) {
 		if (strcmp(c->name, name) == 0 && c->index == idx) {
 			if (!brl_options)
-				selected_console = i;
+				preferred_console = i;
 			return 0;
 		}
 	}
 	if (i == MAX_CMDLINECONSOLES)
 		return -E2BIG;
 	if (!brl_options)
-		selected_console = i;
+		preferred_console = i;
 	strlcpy(c->name, name, sizeof(c->name));
 	c->options = options;
 	braille_set_options(c, brl_options);
@@ -2436,7 +2436,7 @@ void register_console(struct console *newcon)
 		bcon = console_drivers;
 
 	if (!has_preferred || bcon || !console_drivers)
-		has_preferred = selected_console >= 0;
+		has_preferred = preferred_console >= 0;
 
 	/*
 	 *	See if we want to use this console driver. If we
@@ -2484,7 +2484,7 @@ void register_console(struct console *newcon)
 		}
 
 		newcon->flags |= CON_ENABLED;
-		if (i == selected_console) {
+		if (i == preferred_console) {
 			newcon->flags |= CON_CONSDEV;
 			has_preferred = true;
 		}
-- 
2.12.0