[U-Boot] [PATCH v2] net: Use ARRAY_SIZE at appropriate places

Axel Lin axel.lin at ingics.com
Sun Jun 30 05:32:33 CEST 2013


Use ARRAY_SIZE instead of having similar implementation in each drivers.

Signed-off-by: Axel Lin <axel.lin at ingics.com>
Cc: Albert Aribaud <albert.u.boot at aribaud.net>
Cc: Ben Warren <biggerbadderben at gmail.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
Cc: Joe Hershberger <joe.hershberger at ni.com>
Cc: Marek Vasut <marex at denx.de>
Cc: Mike Frysinger <vapier at gentoo.org>
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
Cc: TsiChungLiew <Tsi-Chung.Liew at freescale.com>
Cc: Wolfgang Denk <wd at denx.de>
Cc: York Sun <yorksun at freescale.com>

Signed-off-by: Axel Lin <axel.lin at ingics.com>
---
Hi Jagan Teki,
This is v2 per your request.

v2:
Fix checkpatch issues, now checkpatch only shows below warnings:
a few WARNING: Avoid CamelCase
and a WARNING: line over 80 characters
#134: FILE: drivers/net/npe/IxEthDBFeatures.c:150:
+                       if (ixEthDBTrafficClassDefinitions[trafficClassDefinitionIndex][IX_ETH_DB_NPE_A_FUNCTIONALITY_ID_INDEX] == npeAImageId.functionalityId) {

Obviously, I prefer v1 for below reasons:
1. The diff in v2 becomes bigger and makes it harder for review.
2. The whole file in drivers/net/npe/IxEthDBFeatures.c uses 4 spaces as indent,
   only the lines touched by this patch uses tab as indent (to make checkpatch happy).
   This makes the code looks odd after apply v2, I don't think this is an improvement.

Well, it's up to maintainer to pick up the version he prefer.

Regards,
Axel

 drivers/net/ax88180.c                     |  2 +-
 drivers/net/fsl_mcdmafec.c                |  2 +-
 drivers/net/lan91c96.c                    |  2 +-
 drivers/net/mcffec.c                      |  2 +-
 drivers/net/mcfmii.c                      |  2 +-
 drivers/net/ne2000.c                      |  2 +-
 drivers/net/npe/IxEthDBFeatures.c         | 28 ++++++++++++++--------------
 drivers/net/npe/IxOsalIoMem.c             |  3 +--
 drivers/net/npe/include/IxEthDBPortDefs.h |  2 +-
 drivers/net/npe/include/IxOsalTypes.h     |  2 +-
 10 files changed, 23 insertions(+), 24 deletions(-)

diff --git a/drivers/net/ax88180.c b/drivers/net/ax88180.c
index f501768..7f0cfe5 100644
--- a/drivers/net/ax88180.c
+++ b/drivers/net/ax88180.c
@@ -157,7 +157,7 @@ static void ax88180_mac_reset (struct eth_device *dev)
 	OUTW (dev, MISC_RESET_MAC, MISC);
 	tmpval = INW (dev, MISC);
 
-	for (i = 0; i < (sizeof (program_seq) / sizeof (program_seq[0])); i++)
+	for (i = 0; i < ARRAY_SIZE(program_seq); i++)
 		OUTW (dev, program_seq[i].value, program_seq[i].offset);
 }
 
diff --git a/drivers/net/fsl_mcdmafec.c b/drivers/net/fsl_mcdmafec.c
index 63842cd..0e18764 100644
--- a/drivers/net/fsl_mcdmafec.c
+++ b/drivers/net/fsl_mcdmafec.c
@@ -520,7 +520,7 @@ int mcdmafec_initialize(bd_t * bis)
 	u32 tmp = CONFIG_SYS_INTSRAM + 0x2000;
 #endif
 
-	for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) {
+	for (i = 0; i < ARRAY_SIZE(fec_info); i++) {
 
 		dev =
 		    (struct eth_device *)memalign(CONFIG_SYS_CACHELINE_SIZE,
diff --git a/drivers/net/lan91c96.c b/drivers/net/lan91c96.c
index 11d350e..47c15c4 100644
--- a/drivers/net/lan91c96.c
+++ b/drivers/net/lan91c96.c
@@ -779,7 +779,7 @@ static int lan91c96_detect_chip(struct eth_device *dev)
 	SMC_SELECT_BANK(dev, 3);
 	chip_id = (SMC_inw(dev, 0xA) & LAN91C96_REV_CHIPID) >> 4;
 	SMC_SELECT_BANK(dev, 0);
-	for (r = 0; r < sizeof(supported_chips) / sizeof(struct id_type); r++)
+	for (r = 0; r < ARRAY_SIZE(supported_chips); r++)
 		if (chip_id == supported_chips[r].id)
 			return r;
 	return 0;
diff --git a/drivers/net/mcffec.c b/drivers/net/mcffec.c
index ed7459c..7ae6320 100644
--- a/drivers/net/mcffec.c
+++ b/drivers/net/mcffec.c
@@ -559,7 +559,7 @@ int mcffec_initialize(bd_t * bis)
 	u32 tmp = CONFIG_SYS_INIT_RAM_ADDR + 0x1000;
 #endif
 
-	for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) {
+	for (i = 0; i < ARRAY_SIZE(fec_info); i++) {
 
 		dev =
 		    (struct eth_device *)memalign(CONFIG_SYS_CACHELINE_SIZE,
diff --git a/drivers/net/mcfmii.c b/drivers/net/mcfmii.c
index 5e64dbd..63bc8f8 100644
--- a/drivers/net/mcfmii.c
+++ b/drivers/net/mcfmii.c
@@ -186,7 +186,7 @@ int mii_discover_phy(struct eth_device *dev)
 			printf("PHY @ 0x%x pass %d\n", phyno, pass);
 #endif
 
-			for (i = 0; (i < (sizeof(phyinfo) / sizeof(phy_info_t)))
+			for (i = 0; (i < ARRAY_SIZE(phyinfo))
 				&& (phyinfo[i].phyid != 0); i++) {
 				if (phyinfo[i].phyid == phytype) {
 #ifdef ET_DEBUG
diff --git a/drivers/net/ne2000.c b/drivers/net/ne2000.c
index 3939158..e6cd3e9 100644
--- a/drivers/net/ne2000.c
+++ b/drivers/net/ne2000.c
@@ -228,7 +228,7 @@ int get_prom(u8* mac_addr, u8* base_addr)
 
 	mdelay (10);
 
-	for (i = 0; i < sizeof (program_seq) / sizeof (program_seq[0]); i++)
+	for (i = 0; i < ARRAY_SIZE(program_seq); i++)
 		n2k_outb (program_seq[i].value, program_seq[i].offset);
 
 	PRINTK ("PROM:");
diff --git a/drivers/net/npe/IxEthDBFeatures.c b/drivers/net/npe/IxEthDBFeatures.c
index c5b680a..d43efaa 100644
--- a/drivers/net/npe/IxEthDBFeatures.c
+++ b/drivers/net/npe/IxEthDBFeatures.c
@@ -143,22 +143,22 @@ void ixEthDBFeatureCapabilityScan(void)
                 IX_ENSURE(sizeof (ixEthDBTrafficClassDefinitions) != 0, "DB: no traffic class definitions found, check IxEthDBQoS.h");
 
                 /* find the traffic class definition index compatible with the current NPE A functionality ID */
-                for (trafficClassDefinitionIndex = 0 ;
-                    trafficClassDefinitionIndex < sizeof (ixEthDBTrafficClassDefinitions) / sizeof (ixEthDBTrafficClassDefinitions[0]);
-                    trafficClassDefinitionIndex++)
-                {
-                    if (ixEthDBTrafficClassDefinitions[trafficClassDefinitionIndex][IX_ETH_DB_NPE_A_FUNCTIONALITY_ID_INDEX] == npeAImageId.functionalityId)
-                    {
-                        /* found it */
-                        break;
-                    }
-                }
+		for (trafficClassDefinitionIndex = 0;
+			trafficClassDefinitionIndex <
+			ARRAY_SIZE(ixEthDBTrafficClassDefinitions);
+			trafficClassDefinitionIndex++) {
+			if (ixEthDBTrafficClassDefinitions[trafficClassDefinitionIndex][IX_ETH_DB_NPE_A_FUNCTIONALITY_ID_INDEX] == npeAImageId.functionalityId) {
+				/* found it */
+				break;
+			}
+		}
 
                 /* select the default case if we went over the array boundary */
-                if (trafficClassDefinitionIndex == sizeof (ixEthDBTrafficClassDefinitions) / sizeof (ixEthDBTrafficClassDefinitions[0]))
-                {
-                    trafficClassDefinitionIndex = 0; /* the first record is the default case */
-                }
+		if (trafficClassDefinitionIndex ==
+			ARRAY_SIZE(ixEthDBTrafficClassDefinitions)) {
+			/* the first record is the default case */
+			trafficClassDefinitionIndex = 0;
+		}
 
                 /* select queue assignment structure based on the traffic class configuration index */
                 queueStructureIndex = ixEthDBTrafficClassDefinitions[trafficClassDefinitionIndex][IX_ETH_DB_QUEUE_ASSIGNMENT_INDEX];
diff --git a/drivers/net/npe/IxOsalIoMem.c b/drivers/net/npe/IxOsalIoMem.c
index 34df92b..15a16b8 100644
--- a/drivers/net/npe/IxOsalIoMem.c
+++ b/drivers/net/npe/IxOsalIoMem.c
@@ -66,8 +66,7 @@ ixOsalMemMapFind (UINT32 requestedAddress,
 {
     UINT32 mapIndex;
 
-    UINT32 numMapElements =
-        sizeof (ixOsalGlobalMemoryMap) / sizeof (IxOsalMemoryMap);
+	UINT32 numMapElements = ARRAY_SIZE(ixOsalGlobalMemoryMap);
 
     for (mapIndex = 0; mapIndex < numMapElements; mapIndex++)
     {
diff --git a/drivers/net/npe/include/IxEthDBPortDefs.h b/drivers/net/npe/include/IxEthDBPortDefs.h
index c3acbdd..eac48cb 100644
--- a/drivers/net/npe/include/IxEthDBPortDefs.h
+++ b/drivers/net/npe/include/IxEthDBPortDefs.h
@@ -106,7 +106,7 @@ static const IxEthDBPortDefinition ixEthDBPortDefinitions[] =
  * @def IX_ETH_DB_NUMBER_OF_PORTS
  * @brief number of supported ports 
  */
-#define IX_ETH_DB_NUMBER_OF_PORTS (sizeof (ixEthDBPortDefinitions) / sizeof (ixEthDBPortDefinitions[0]))
+#define IX_ETH_DB_NUMBER_OF_PORTS ARRAY_SIZE(ixEthDBPortDefinitions)
 
 /**
  * @def IX_ETH_DB_UNKNOWN_PORT
diff --git a/drivers/net/npe/include/IxOsalTypes.h b/drivers/net/npe/include/IxOsalTypes.h
index 06e71de..615c655 100644
--- a/drivers/net/npe/include/IxOsalTypes.h
+++ b/drivers/net/npe/include/IxOsalTypes.h
@@ -93,7 +93,7 @@ typedef volatile INT32 VINT32;
 
 
 #ifndef NUMELEMS
-#define NUMELEMS(x) (sizeof(x) / sizeof((x)[0]))
+#define NUMELEMS(x) ARRAY_SIZE(x)
 #endif
 
 
-- 
1.8.1.2





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