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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Petr Mladek <pmladek@suse.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	linux-kernel@vger.kernel.org,
	Steven Rostedt <rostedt@goodmis.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v5 2/7] console: Drop double check for console_drivers being non-NULL
Date: Mon,  3 Feb 2020 15:31:25 +0200	[thread overview]
Message-ID: <20200203133130.11591-2-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20200203133130.11591-1-andriy.shevchenko@linux.intel.com>

There is no need to explicitly check for console_drivers to be non-NULL
since for_each_console() does this.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
---
v5: no change

 kernel/printk/printk.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 815739eb8406..21b1a5d5e5b0 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1779,9 +1779,6 @@ static void call_console_drivers(const char *ext_text, size_t ext_len,
 
 	trace_console_rcuidle(text, len);
 
-	if (!console_drivers)
-		return;
-
 	for_each_console(con) {
 		if (exclusive_console && con != exclusive_console)
 			continue;
@@ -2660,18 +2657,17 @@ void register_console(struct console *newcon)
 	struct console_cmdline *c;
 	static bool has_preferred;
 
-	if (console_drivers)
-		for_each_console(bcon)
-			if (WARN(bcon == newcon,
-					"console '%s%d' already registered\n",
-					bcon->name, bcon->index))
-				return;
+	for_each_console(bcon) {
+		if (WARN(bcon == newcon, "console '%s%d' already registered\n",
+					 bcon->name, bcon->index))
+			return;
+	}
 
 	/*
 	 * before we register a new CON_BOOT console, make sure we don't
 	 * already have a valid console
 	 */
-	if (console_drivers && newcon->flags & CON_BOOT) {
+	if (newcon->flags & CON_BOOT) {
 		/* find the last or real console */
 		for_each_console(bcon) {
 			if (!(bcon->flags & CON_BOOT)) {
-- 
2.24.1


  reply	other threads:[~2020-02-03 13:31 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-03 13:31 [PATCH v5 1/7] console: Don't perform test for CON_BRL flag Andy Shevchenko
2020-02-03 13:31 ` Andy Shevchenko [this message]
2020-02-03 13:31 ` [PATCH v5 3/7] console: Use for_each_console() helper in unregister_console() Andy Shevchenko
2020-02-03 13:31 ` [PATCH v5 4/7] console: Drop misleading comment Andy Shevchenko
2020-02-03 13:31 ` [PATCH v5 5/7] console: Avoid positive return code from unregister_console() Andy Shevchenko
2020-02-03 13:31 ` [PATCH v5 6/7] console: Don't notify user space when unregister non-listed console Andy Shevchenko
2020-02-03 13:31 ` [PATCH v5 7/7] console: Introduce ->exit() callback Andy Shevchenko
2020-02-04  1:34 ` [PATCH v5 1/7] console: Don't perform test for CON_BRL flag Sergey Senozhatsky
2020-02-11 11:32   ` Petr Mladek
2020-02-11 12:54     ` Andy Shevchenko

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