linux-kernel - [PATCH v2 2/3] Staging: octeon-usb: Change coding style of CVMX_WAIT_FOR

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Date:   Thu, 26 Jul 2018 18:41:52 +0300
From:   Georgios Tsotsos <tsotsos@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Georgios Tsotsos <tsotsos@...il.com>,
        James Hogan <jhogan@...nel.org>,
        Aaro Koskinen <aaro.koskinen@....fi>,
        Joe Perches <joe@...ches.com>, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/3] Staging: octeon-usb: Change coding style of CVMX_WAIT_FOR_FIELD32 marco.

Fixing coding style for CVMX_WAIT_FOR_FIELD32 was confusing. Also
encapsulates into parentheses timeout_usec.

Signed-off-by: Georgios Tsotsos <tsotsos@...il.com>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 44 +++++++++++++++++----------------
 1 file changed, 23 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index cff5e790b196..c8e0ebf1434f 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -378,27 +378,29 @@ struct octeon_hcd {
 };
 
 /* This macro spins on a register waiting for it to reach a condition. */
-#define CVMX_WAIT_FOR_FIELD32(address, _union, cond, timeout_usec)	    \
-	({int result;							    \
-	do {								    \
-		u64 done = cvmx_get_cycle() + (u64)timeout_usec *	    \
-			   octeon_get_clock_rate() / 1000000;		    \
-		union _union c;						    \
-									    \
-		while (1) {						    \
-			c.u32 = cvmx_usb_read_csr32(usb, address);	    \
-									    \
-			if (cond) {					    \
-				result = 0;				    \
-				break;					    \
-			} else if (cvmx_get_cycle() > done) {		    \
-				result = -1;				    \
-				break;					    \
-			} else						    \
-				__delay(100);				    \
-		}							    \
-	} while (0);							    \
-	result; })
+#define CVMX_WAIT_FOR_FIELD32(address, _union, cond, timeout_usec)	\
+({									\
+	int result;							\
+	do {								\
+		u64 done = cvmx_get_cycle() + (u64)(timeout_usec) *	\
+			   octeon_get_clock_rate() / 1000000;		\
+		union _union c;						\
+									\
+		while (1) {						\
+			c.u32 = cvmx_usb_read_csr32(usb, address);	\
+									\
+			if (cond) {					\
+				result = 0;				\
+				break;					\
+			} else if (cvmx_get_cycle() > done) {		\
+				result = -1;				\
+				break;					\
+			} else						\
+				__delay(100);				\
+		}							\
+	} while (0);							\
+	result;								\
+})
 
 /*
  * This macro logically sets a single field in a CSR. It does the sequence
-- 
2.16.4