linux-kernel - [PATCH] staging: ks7010: Replace macros with do while loop.

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Message-Id: <20210221201327.12714-1-chakravarthikulkarni2021@gmail.com>
Date:   Mon, 22 Feb 2021 01:43:24 +0530
From:   chakravarthikulkarni <chakravarthikulkarni2021@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     chakravarthikulkarni2021@...il.com,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: ks7010: Replace macros with do while loop.

This commit fix errors found in checkpath.pl.
Error message is:
<Macros with complex values should be enclosed in parentheses.>
It is a good idea to keep complex macros in do while loop.
Otherwise result may have side effect.

Signed-off-by: chakravarthikulkarni <chakravarthikulkarni2021@...il.com>
---
 drivers/staging/ks7010/ks_hostif.h | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/ks7010/ks_hostif.h b/drivers/staging/ks7010/ks_hostif.h
index 39138191a556..955499054d10 100644
--- a/drivers/staging/ks7010/ks_hostif.h
+++ b/drivers/staging/ks7010/ks_hostif.h
@@ -498,20 +498,20 @@ struct hostif_mic_failure_request {
 #define TX_RATE_FIXED		5
 
 /* 11b rate */
-#define TX_RATE_1M	(u8)(10 / 5)	/* 11b 11g basic rate */
-#define TX_RATE_2M	(u8)(20 / 5)	/* 11b 11g basic rate */
-#define TX_RATE_5M	(u8)(55 / 5)	/* 11g basic rate */
-#define TX_RATE_11M	(u8)(110 / 5)	/* 11g basic rate */
+#define TX_RATE_1M	do { (u8) (10 / 5) } while (0)	/* 11b 11g basic rate */
+#define TX_RATE_2M	do { (u8) (20 / 5) } while (0)	/* 11b 11g basic rate */
+#define TX_RATE_5M	do { (u8) (55 / 5) } while (0)	/* 11g basic rate */
+#define TX_RATE_11M	do { (u8) (110 / 5) } while (0)	/* 11g basic rate */
 
 /* 11g rate */
-#define TX_RATE_6M	(u8)(60 / 5)	/* 11g basic rate */
-#define TX_RATE_12M	(u8)(120 / 5)	/* 11g basic rate */
-#define TX_RATE_24M	(u8)(240 / 5)	/* 11g basic rate */
-#define TX_RATE_9M	(u8)(90 / 5)
-#define TX_RATE_18M	(u8)(180 / 5)
-#define TX_RATE_36M	(u8)(360 / 5)
-#define TX_RATE_48M	(u8)(480 / 5)
-#define TX_RATE_54M	(u8)(540 / 5)
+#define TX_RATE_6M	do { (u8) (60 / 5) } while (0)	/* 11g basic rate */
+#define TX_RATE_12M	do { (u8) (120 / 5) } while (0)	/* 11g basic rate */
+#define TX_RATE_24M	do { (u8) (240 / 5) } while (0)	/* 11g basic rate */
+#define TX_RATE_9M	do { (u8) (90 / 5) } while (0)
+#define TX_RATE_18M	do { (u8) (180 / 5) } while (0)
+#define TX_RATE_36M	do { (u8) (360 / 5) } while (0)
+#define TX_RATE_48M	do { (u8) (480 / 5) } while (0)
+#define TX_RATE_54M	do { (u8) (540 / 5) } while (0)
 
 static inline bool is_11b_rate(u8 rate)
 {
-- 
2.17.1