linux-kernel - [PATCH 3/7] HID: use BIT macro instead of plain integers for flags

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Date:   Tue, 20 Mar 2018 12:04:47 +0100
From:   Benjamin Tissoires <benjamin.tissoires@...hat.com>
To:     Jiri Kosina <jikos@...nel.org>
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>
Subject: [PATCH 3/7] HID: use BIT macro instead of plain integers for flags

This can lead to some hairy situation with the developer losing
a day or two realizing that 4 should be after 2, not 3.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@...il.com>

--
 include/linux/hid.h | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/include/linux/hid.h b/include/linux/hid.h
index dfea5a656a1a..ea78336984d3 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -26,6 +26,7 @@
 #define __HID_H
 
 
+#include <linux/bitops.h>
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/list.h>
@@ -494,13 +495,13 @@ struct hid_output_fifo {
 	char *raw_report;
 };
 
-#define HID_CLAIMED_INPUT	1
-#define HID_CLAIMED_HIDDEV	2
-#define HID_CLAIMED_HIDRAW	4
-#define HID_CLAIMED_DRIVER	8
+#define HID_CLAIMED_INPUT	BIT(0)
+#define HID_CLAIMED_HIDDEV	BIT(1)
+#define HID_CLAIMED_HIDRAW	BIT(2)
+#define HID_CLAIMED_DRIVER	BIT(3)
 
-#define HID_STAT_ADDED		1
-#define HID_STAT_PARSED		2
+#define HID_STAT_ADDED		BIT(0)
+#define HID_STAT_PARSED		BIT(1)
 
 struct hid_input {
 	struct list_head list;
-- 
2.14.3