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From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Arnd Bergmann <arnd@arndb.de>
Subject: [for-next][PATCH 4/7] tracing: make PREEMPTIRQ_EVENTS depend on TRACING
Date: Wed, 13 Dec 2017 15:47:00 -0500	[thread overview]
Message-ID: <20171213204737.672456234@goodmis.org> (raw)
In-Reply-To: 20171213204656.366789624@goodmis.org

[-- Attachment #1: 0004-tracing-make-PREEMPTIRQ_EVENTS-depend-on-TRACING.patch --]
[-- Type: text/plain, Size: 1194 bytes --]

From: Arnd Bergmann <arnd@arndb.de>

When CONFIG_TRACING is disabled, the new preemptirq events tracer
produces a build failure:

In file included from kernel/trace/trace_irqsoff.c:17:0:
kernel/trace/trace.h: In function 'trace_test_and_set_recursion':
kernel/trace/trace.h:542:28: error: 'struct task_struct' has no member named 'trace_recursion'

Adding an explicit dependency avoids the broken configuration.

Link: http://lkml.kernel.org/r/20171103104031.270375-1-arnd@arndb.de

Fixes: d59158162e03 ("tracing: Add support for preempt and irq enable/disable events")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 kernel/trace/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index af7dad126c13..904c952ac383 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -164,6 +164,7 @@ config PREEMPTIRQ_EVENTS
 	bool "Enable trace events for preempt and irq disable/enable"
 	select TRACE_IRQFLAGS
 	depends on DEBUG_PREEMPT || !PROVE_LOCKING
+	depends on TRACING
 	default n
 	help
 	  Enable tracing of disable and enable events for preemption and irqs.
-- 
2.13.2

  parent reply	other threads:[~2017-12-13 20:48 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-13 20:46 [for-next][PATCH 0/7] tracing: Fixes for 4.15 Steven Rostedt
2017-12-13 20:46 ` [for-next][PATCH 1/7] tracing: Fix code comments in trace.c Steven Rostedt
2017-12-13 20:46 ` [for-next][PATCH 2/7] tracing: always define trace_{irq,preempt}_{enable_disable} Steven Rostedt
2017-12-13 20:46 ` [for-next][PATCH 3/7] tracing: Allocate mask_str buffer dynamically Steven Rostedt
2017-12-13 20:47 ` Steven Rostedt [this message]
2017-12-13 20:47 ` [for-next][PATCH 5/7] ring-buffer: Remove unused function __rb_data_page_index() Steven Rostedt
2017-12-13 20:47 ` [for-next][PATCH 6/7] tracing: Pass export pointer as argument to ->write() Steven Rostedt
2017-12-13 20:47 ` [for-next][PATCH 7/7] tracing: Have stack trace not record if RCU is not watching Steven Rostedt
2017-12-14  4:34   ` Paul E. McKenney
2017-12-15  1:47     ` Steven Rostedt

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