linux-kernel - [RFC PATCH v1 14/25] printk: do boot_delay_msec inside printk

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Date:   Tue, 12 Feb 2019 15:29:52 +0100
From:   John Ogness <john.ogness@...utronix.de>
To:     linux-kernel@...r.kernel.org
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Daniel Wang <wonderfly@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Cox <gnomes@...rguk.ukuu.org.uk>,
        Jiri Slaby <jslaby@...e.com>,
        Peter Feiner <pfeiner@...gle.com>,
        linux-serial@...r.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: [RFC PATCH v1 14/25] printk: do boot_delay_msec inside printk_delay

Both functions needed to be called one after the other, so just
integrate boot_delay_msec into printk_delay for simplification.

Signed-off-by: John Ogness <john.ogness@...utronix.de>
---
 kernel/printk/printk.c | 35 +++++++++++++++++------------------
 1 file changed, 17 insertions(+), 18 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index ebd9aac06323..897219f34cab 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1453,6 +1453,21 @@ SYSCALL_DEFINE3(syslog, int, type, char __user *, buf, int, len)
 	return do_syslog(type, buf, len, SYSLOG_FROM_READER);
 }
 
+int printk_delay_msec __read_mostly;
+
+static inline void printk_delay(int level)
+{
+	boot_delay_msec(level);
+	if (unlikely(printk_delay_msec)) {
+		int m = printk_delay_msec;
+
+		while (m--) {
+			mdelay(1);
+			touch_nmi_watchdog();
+		}
+	}
+}
+
 static void print_console_dropped(struct console *con, u64 count)
 {
 	char text[64];
@@ -1534,20 +1549,6 @@ static void call_console_drivers(u64 seq, const char *ext_text, size_t ext_len,
 	}
 }
 
-int printk_delay_msec __read_mostly;
-
-static inline void printk_delay(void)
-{
-	if (unlikely(printk_delay_msec)) {
-		int m = printk_delay_msec;
-
-		while (m--) {
-			mdelay(1);
-			touch_nmi_watchdog();
-		}
-	}
-}
-
 /* FIXME: no support for LOG_CONT */
 #if 0
 /*
@@ -2506,10 +2507,8 @@ static int printk_kthread_func(void *data)
 		console_lock();
 		call_console_drivers(master_seq, ext_text,
 				     ext_len, text, len);
-		if (len > 0 || ext_len > 0) {
-			boot_delay_msec(msg->level);
-			printk_delay();
-		}
+		if (len > 0 || ext_len > 0)
+			printk_delay(msg->level);
 		console_unlock();
 	}
 
-- 
2.11.0