linux-kernel - [PATCH 6/6] Staging: android: Add parenthesis to macros with complex values in pmem.c

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Message-Id: <1327119812-19851-1-git-send-email-gada.kashyap@gmail.com>
Date:	Sat, 21 Jan 2012 04:23:32 +0000
From:	Kashyap Gada <gada.kashyap@...il.com>
To:	gregkh@...e.de
Cc:	rebecca@...roid.com, jgennis@...gle.com, dima@...roid.com,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Kashyap Gada <gada.kashyap@...il.com>
Subject: [PATCH 6/6] Staging: android: Add parenthesis to macros with complex values in pmem.c

diff --git a/drivers/staging/android/pmem.c b/drivers/staging/android/pmem.c
index c589c0c..b685c18 100644
--- a/drivers/staging/android/pmem.c
+++ b/drivers/staging/android/pmem.c
@@ -38,17 +38,17 @@
  * the file should not be released until put_pmem_file is called */
 #define PMEM_FLAGS_BUSY 0x1
 /* indicates that this is a suballocation of a larger master range */
-#define PMEM_FLAGS_CONNECTED 0x1 << 1
+#define PMEM_FLAGS_CONNECTED (x1 << 1)
 /* indicates this is a master and not a sub allocation and that it is mmaped */
-#define PMEM_FLAGS_MASTERMAP 0x1 << 2
+#define PMEM_FLAGS_MASTERMAP (0x1 << 2)
 /* submap and unsubmap flags indicate:
  * 00: subregion has never been mmaped
  * 10: subregion has been mmaped, reference to the mm was taken
  * 11: subretion has ben released, refernece to the mm still held
  * 01: subretion has been released, reference to the mm has been released
  */
-#define PMEM_FLAGS_SUBMAP 0x1 << 3
-#define PMEM_FLAGS_UNSUBMAP 0x1 << 4
+#define PMEM_FLAGS_SUBMAP (0x1 << 3)
+#define PMEM_FLAGS_UNSUBMAP (0x1 << 4)
 
 
 struct pmem_data {
@@ -153,8 +153,8 @@ struct pmem_info {
 static struct pmem_info pmem[PMEM_MAX_DEVICES];
 static int id_count;
 
-#define PMEM_IS_FREE(id, index) !(pmem[id].bitmap[index].allocated)
-#define PMEM_ORDER(id, index) pmem[id].bitmap[index].order
+#define PMEM_IS_FREE(id, index) (!(pmem[id].bitmap[index].allocated))
+#define PMEM_ORDER(id, index) (pmem[id].bitmap[index].order)
 #define PMEM_BUDDY_INDEX(id, index) (index ^ (1 << PMEM_ORDER(id, index)))
 #define PMEM_NEXT_INDEX(id, index) (index + (1 << PMEM_ORDER(id, index)))
 #define PMEM_OFFSET(index) (index * PMEM_MIN_ALLOC)
-- 
1.7.5.4

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