linux-kernel - [tip:timers/core] hrtimer: Clean up 'enum hrtimer

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Date:   Mon, 15 Jan 2018 19:43:01 -0800
From:   tip-bot for Anna-Maria Gleixner <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     john.stultz@...aro.org, linux-kernel@...r.kernel.org, hch@....de,
        mingo@...nel.org, tglx@...utronix.de, anna-maria@...utronix.de,
        peterz@...radead.org, torvalds@...ux-foundation.org, hpa@...or.com
Subject: [tip:timers/core] hrtimer: Clean up 'enum hrtimer_mode'

Commit-ID:  19b51cb5ff6ab7957bcbbec4ff812b83208f7e99
Gitweb:     https://git.kernel.org/tip/19b51cb5ff6ab7957bcbbec4ff812b83208f7e99
Author:     Anna-Maria Gleixner <anna-maria@...utronix.de>
AuthorDate: Thu, 21 Dec 2017 11:41:36 +0100
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Tue, 16 Jan 2018 02:35:45 +0100

hrtimer: Clean up 'enum hrtimer_mode'

It's not obvious that the HRTIMER_MODE variants are bit combinations,
because all modes are hard coded constants currently.

Change it so the bit meanings are clear; and use the symbols for creating
modes which combine bits.

While at it get rid of the ugly tail comments as well.

Signed-off-by: Anna-Maria Gleixner <anna-maria@...utronix.de>
Cc: Christoph Hellwig <hch@....de>
Cc: John Stultz <john.stultz@...aro.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: keescook@...omium.org
Link: http://lkml.kernel.org/r/20171221104205.7269-8-anna-maria@linutronix.de
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 include/linux/hrtimer.h | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 4e6a884..28f267c 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -28,13 +28,19 @@ struct hrtimer_cpu_base;
 
 /*
  * Mode arguments of xxx_hrtimer functions:
+ *
+ * HRTIMER_MODE_ABS		- Time value is absolute
+ * HRTIMER_MODE_REL		- Time value is relative to now
+ * HRTIMER_MODE_PINNED		- Timer is bound to CPU (is only considered
+ *				  when starting the timer)
  */
 enum hrtimer_mode {
-	HRTIMER_MODE_ABS = 0x0,		/* Time value is absolute */
-	HRTIMER_MODE_REL = 0x1,		/* Time value is relative to now */
-	HRTIMER_MODE_PINNED = 0x02,	/* Timer is bound to CPU */
-	HRTIMER_MODE_ABS_PINNED = 0x02,
-	HRTIMER_MODE_REL_PINNED = 0x03,
+	HRTIMER_MODE_ABS	= 0x00,
+	HRTIMER_MODE_REL	= 0x01,
+	HRTIMER_MODE_PINNED	= 0x02,
+
+	HRTIMER_MODE_ABS_PINNED = HRTIMER_MODE_ABS | HRTIMER_MODE_PINNED,
+	HRTIMER_MODE_REL_PINNED = HRTIMER_MODE_REL | HRTIMER_MODE_PINNED,
 };
 
 /*