43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
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From 9bc676e2756ffbd91e9fccab878216fc98ab7c49 Mon Sep 17 00:00:00 2001
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From: Ingo Molnar <mingo@elte.hu>
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Date: Wed, 14 Dec 2011 13:05:54 +0100
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Subject: [PATCH 189/365] rt: Improve the serial console PASS_LIMIT
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Beyond the warning:
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drivers/tty/serial/8250/8250.c:1613:6: warning: unused variable ‘pass_counter’ [-Wunused-variable]
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the solution of just looping infinitely was ugly - up it to 1 million to
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give it a chance to continue in some really ugly situation.
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Change-Id: Ia245a834bf5993217a28e8b772bbb9effd4952ee
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Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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drivers/tty/serial/8250/8250_core.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
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index e68f0b78c31d..7b9851ca8933 100644
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--- a/drivers/tty/serial/8250/8250_core.c
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+++ b/drivers/tty/serial/8250/8250_core.c
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@@ -66,7 +66,11 @@ static unsigned int skip_txen_test; /* force skip of txen test at init time */
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* Even in non-rt environment (under hypervisor) this constant might be
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* too small
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*/
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-#define PASS_LIMIT 1000000
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+#ifdef CONFIG_PREEMPT_RT_FULL
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+# define PASS_LIMIT 1000000
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+#else
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+# define PASS_LIMIT 512
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+#endif
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#include <asm/serial.h>
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/*
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--
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2.28.0
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