diff --git a/drivers/i2c/busses/i2c-ali1535.c b/drivers/i2c/busses/i2c-ali1535.c
index 1e277ba5a9f34aaa3f2f6beee5704c447d79edd0..f14372ac2fc5d08ef0b8ced5b994d86af7a5dee5 100644
--- a/drivers/i2c/busses/i2c-ali1535.c
+++ b/drivers/i2c/busses/i2c-ali1535.c
@@ -497,7 +497,7 @@ static int __devinit ali1535_probe(struct pci_dev *dev, const struct pci_device_
 	/* set up the sysfs linkage to our parent device */
 	ali1535_adapter.dev.parent = &dev->dev;
 
-	snprintf(ali1535_adapter.name, I2C_NAME_SIZE, 
+	snprintf(ali1535_adapter.name, sizeof(ali1535_adapter.name),
 		"SMBus ALI1535 adapter at %04x", ali1535_smba);
 	return i2c_add_adapter(&ali1535_adapter);
 }
diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c
index e47fe01bf42ae5c0bd73fcf215e8a1c01d361e66..93bf87d709618fff0ba489aa17028b2d84a39f23 100644
--- a/drivers/i2c/busses/i2c-ali15x3.c
+++ b/drivers/i2c/busses/i2c-ali15x3.c
@@ -492,7 +492,7 @@ static int __devinit ali15x3_probe(struct pci_dev *dev, const struct pci_device_
 	/* set up the sysfs linkage to our parent device */
 	ali15x3_adapter.dev.parent = &dev->dev;
 
-	snprintf(ali15x3_adapter.name, I2C_NAME_SIZE,
+	snprintf(ali15x3_adapter.name, sizeof(ali15x3_adapter.name),
 		"SMBus ALI15X3 adapter at %04x", ali15x3_smba);
 	return i2c_add_adapter(&ali15x3_adapter);
 }
diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c
index 0c70f8293341c9aee6f7cc5e6206b57c51ef8742..c9fca7b492675a7c765635761602562eca7b024a 100644
--- a/drivers/i2c/busses/i2c-amd8111.c
+++ b/drivers/i2c/busses/i2c-amd8111.c
@@ -365,7 +365,7 @@ static int __devinit amd8111_probe(struct pci_dev *dev,
 	}
 
 	smbus->adapter.owner = THIS_MODULE;
-	snprintf(smbus->adapter.name, I2C_NAME_SIZE,
+	snprintf(smbus->adapter.name, sizeof(smbus->adapter.name),
 		"SMBus2 AMD8111 adapter at %04x", smbus->base);
 	smbus->adapter.id = I2C_HW_SMBUS_AMD8111;
 	smbus->adapter.class = I2C_CLASS_HWMON;
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index a320e7d82c1fe1a5044eb60aab53a48872ce8386..611b57192c9618ac6159267b4371f89835efd75c 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -527,7 +527,7 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id
 	/* set up the sysfs linkage to our parent device */
 	i801_adapter.dev.parent = &dev->dev;
 
-	snprintf(i801_adapter.name, I2C_NAME_SIZE,
+	snprintf(i801_adapter.name, sizeof(i801_adapter.name),
 		"SMBus I801 adapter at %04lx", i801_smba);
 	err = i2c_add_adapter(&i801_adapter);
 	if (err) {
diff --git a/drivers/i2c/busses/i2c-ixp2000.c b/drivers/i2c/busses/i2c-ixp2000.c
index efa3ecc5522ac32b33dbae416d2ad3ae84ff8045..6352121a28275552bd1a360288485afdd5e4ca52 100644
--- a/drivers/i2c/busses/i2c-ixp2000.c
+++ b/drivers/i2c/busses/i2c-ixp2000.c
@@ -118,7 +118,7 @@ static int ixp2000_i2c_probe(struct platform_device *plat_dev)
 
 	drv_data->adapter.id = I2C_HW_B_IXP2000,
 	strlcpy(drv_data->adapter.name, plat_dev->dev.driver->name,
-		I2C_NAME_SIZE);
+		sizeof(drv_data->adapter.name));
 	drv_data->adapter.algo_data = &drv_data->algo_data,
 
 	drv_data->adapter.dev.parent = &plat_dev->dev;
diff --git a/drivers/i2c/busses/i2c-ixp4xx.c b/drivers/i2c/busses/i2c-ixp4xx.c
index 08e89b83984a6a31944583bb3b3f5bc5f8034257..069ed7f3b39553a9de2a3c51b4b0209fd11fc909 100644
--- a/drivers/i2c/busses/i2c-ixp4xx.c
+++ b/drivers/i2c/busses/i2c-ixp4xx.c
@@ -127,7 +127,7 @@ static int ixp4xx_i2c_probe(struct platform_device *plat_dev)
 	drv_data->adapter.id = I2C_HW_B_IXP4XX;
 	drv_data->adapter.class = I2C_CLASS_HWMON;
 	strlcpy(drv_data->adapter.name, plat_dev->dev.driver->name,
-		I2C_NAME_SIZE);
+		sizeof(drv_data->adapter.name));
 	drv_data->adapter.algo_data = &drv_data->algo_data;
 
 	drv_data->adapter.dev.parent = &plat_dev->dev;
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index a3283b907eb87a947fe30979e27867c34811cfaf..a55b3335d1becd05d5ebbcafb8d4477b50f9d099 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -508,7 +508,7 @@ mv64xxx_i2c_probe(struct platform_device *pd)
 	}
 
 	strlcpy(drv_data->adapter.name, MV64XXX_I2C_CTLR_NAME " adapter",
-		I2C_NAME_SIZE);
+		sizeof(drv_data->adapter.name));
 
 	init_waitqueue_head(&drv_data->waitq);
 	spin_lock_init(&drv_data->lock);
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index 1514ec5b77f8e82f72a66ffc27ff8dc3f8414f7b..cdc67dc914c34b4dbd9656b546f70916a1a5dd27 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -240,7 +240,7 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar,
 	smbus->adapter.algo = &smbus_algorithm;
 	smbus->adapter.algo_data = smbus;
 	smbus->adapter.dev.parent = &dev->dev;
-	snprintf(smbus->adapter.name, I2C_NAME_SIZE,
+	snprintf(smbus->adapter.name, sizeof(smbus->adapter.name),
 		"SMBus nForce2 adapter at %04x", smbus->base);
 
 	error = i2c_add_adapter(&smbus->adapter);
diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c
index bf89eeef74e9f83c7fcd5d687304050c0492d68b..58e32714afb5b881068c9ca096d8ec271a448cd7 100644
--- a/drivers/i2c/busses/i2c-pasemi.c
+++ b/drivers/i2c/busses/i2c-pasemi.c
@@ -358,7 +358,7 @@ static int __devinit pasemi_smb_probe(struct pci_dev *dev,
 	}
 
 	smbus->adapter.owner = THIS_MODULE;
-	snprintf(smbus->adapter.name, I2C_NAME_SIZE,
+	snprintf(smbus->adapter.name, sizeof(smbus->adapter.name),
 		 "PA Semi SMBus adapter at 0x%lx", smbus->base);
 	smbus->adapter.class = I2C_CLASS_HWMON;
 	smbus->adapter.algo = &smbus_algorithm;
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 21b180904085e433cd69923d49dc304b5c19497c..5a52bf5e3fb0a8c2f93263fa4e95e85e1b50763f 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -428,7 +428,7 @@ static int __devinit piix4_probe(struct pci_dev *dev,
 	/* set up the sysfs linkage to our parent device */
 	piix4_adapter.dev.parent = &dev->dev;
 
-	snprintf(piix4_adapter.name, I2C_NAME_SIZE,
+	snprintf(piix4_adapter.name, sizeof(piix4_adapter.name),
 		"SMBus PIIX4 adapter at %04x", piix4_smba);
 
 	if ((retval = i2c_add_adapter(&piix4_adapter))) {
diff --git a/drivers/i2c/busses/i2c-sis96x.c b/drivers/i2c/busses/i2c-sis96x.c
index 4157b0cd604c5415c727f5c49113f68151b798db..dc235bb8e24d448ae5f815ff45314bdea789d740 100644
--- a/drivers/i2c/busses/i2c-sis96x.c
+++ b/drivers/i2c/busses/i2c-sis96x.c
@@ -300,7 +300,7 @@ static int __devinit sis96x_probe(struct pci_dev *dev,
 	/* set up the sysfs linkage to our parent device */
 	sis96x_adapter.dev.parent = &dev->dev;
 
-	snprintf(sis96x_adapter.name, I2C_NAME_SIZE,
+	snprintf(sis96x_adapter.name, sizeof(sis96x_adapter.name),
 		"SiS96x SMBus adapter at 0x%04x", sis96x_smbus_base);
 
 	if ((retval = i2c_add_adapter(&sis96x_adapter))) {
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 03c5fc868548d3d121aca6d879b06e13031594c2..7a2bc06304fca779a3a5c2194d6d9d92e34a199c 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -404,7 +404,7 @@ static int __devinit vt596_probe(struct pci_dev *pdev,
 	}
 
 	vt596_adapter.dev.parent = &pdev->dev;
-	snprintf(vt596_adapter.name, I2C_NAME_SIZE,
+	snprintf(vt596_adapter.name, sizeof(vt596_adapter.name),
 		 "SMBus Via Pro adapter at %04x", vt596_smba);
 
 	vt596_pdev = pci_dev_get(pdev);
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index 0b082c5a01956d7e98b52329ad920b69693793e3..d816ab089fe2c45b3bc5a2ed35dd094fa3390973 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -441,7 +441,7 @@ static __init struct scx200_acb_iface *scx200_create_iface(const char *text,
 
 	adapter = &iface->adapter;
 	i2c_set_adapdata(adapter, iface);
-	snprintf(adapter->name, I2C_NAME_SIZE, "%s ACB%d", text, index);
+	snprintf(adapter->name, sizeof(adapter->name), "%s ACB%d", text, index);
 	adapter->owner = THIS_MODULE;
 	adapter->id = I2C_HW_SMBUS_SCX200;
 	adapter->algo = &scx200_acb_algorithm;
diff --git a/drivers/media/dvb/b2c2/flexcop-i2c.c b/drivers/media/dvb/b2c2/flexcop-i2c.c
index 5347a406fff7e0e73abe885eff3562ca747a10a6..02a0ea6e1c17e030e7391ec09ec396a24d70eb96 100644
--- a/drivers/media/dvb/b2c2/flexcop-i2c.c
+++ b/drivers/media/dvb/b2c2/flexcop-i2c.c
@@ -183,7 +183,8 @@ int flexcop_i2c_init(struct flexcop_device *fc)
 	mutex_init(&fc->i2c_mutex);
 
 	memset(&fc->i2c_adap, 0, sizeof(struct i2c_adapter));
-	strncpy(fc->i2c_adap.name, "B2C2 FlexCop device",I2C_NAME_SIZE);
+	strncpy(fc->i2c_adap.name, "B2C2 FlexCop device",
+		sizeof(fc->i2c_adap.name));
 
 	i2c_set_adapdata(&fc->i2c_adap,fc);
 
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c b/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c
index 70df31b0a8a9cdecfae95d3f4dea2efc07ad0b5f..088b6dee3a7fbfa289e3ff9c11b77b34405fb478 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c
@@ -19,7 +19,7 @@ int dvb_usb_i2c_init(struct dvb_usb_device *d)
 		return -EINVAL;
 	}
 
-	strncpy(d->i2c_adap.name,d->desc->name,I2C_NAME_SIZE);
+	strncpy(d->i2c_adap.name, d->desc->name, sizeof(d->i2c_adap.name));
 #ifdef I2C_ADAP_CLASS_TV_DIGITAL
 	d->i2c_adap.class = I2C_ADAP_CLASS_TV_DIGITAL,
 #else
diff --git a/drivers/media/dvb/frontends/dibx000_common.c b/drivers/media/dvb/frontends/dibx000_common.c
index a18c8f45a2eeecded00ff1ecb2760d56141e71bf..315e09e95b0c47723463c2b3b68f9d7df6f2e496 100644
--- a/drivers/media/dvb/frontends/dibx000_common.c
+++ b/drivers/media/dvb/frontends/dibx000_common.c
@@ -105,9 +105,9 @@ struct i2c_adapter * dibx000_get_i2c_adapter(struct dibx000_i2c_master *mst, enu
 }
 EXPORT_SYMBOL(dibx000_get_i2c_adapter);
 
-static int i2c_adapter_init(struct i2c_adapter *i2c_adap, struct i2c_algorithm *algo, const char name[I2C_NAME_SIZE], struct dibx000_i2c_master *mst)
+static int i2c_adapter_init(struct i2c_adapter *i2c_adap, struct i2c_algorithm *algo, const char *name, struct dibx000_i2c_master *mst)
 {
-	strncpy(i2c_adap->name, name, I2C_NAME_SIZE);
+	strncpy(i2c_adap->name, name, sizeof(i2c_adap->name));
 	i2c_adap->class     = I2C_CLASS_TV_DIGITAL,
 	i2c_adap->algo      = algo;
 	i2c_adap->algo_data = NULL;
diff --git a/drivers/video/intelfb/intelfb_i2c.c b/drivers/video/intelfb/intelfb_i2c.c
index f4ede5f6b588da583e43545566737fc736545104..61e4c8759b231da79de6c45e6708041d5ee53292 100644
--- a/drivers/video/intelfb/intelfb_i2c.c
+++ b/drivers/video/intelfb/intelfb_i2c.c
@@ -104,7 +104,8 @@ static int intelfb_setup_i2c_bus(struct intelfb_info *dinfo,
 
 	chan->dinfo					= dinfo;
 	chan->reg					= reg;
-	snprintf(chan->adapter.name, I2C_NAME_SIZE, "intelfb %s", name);
+	snprintf(chan->adapter.name, sizeof(chan->adapter.name),
+		 "intelfb %s", name);
 	chan->adapter.owner			= THIS_MODULE;
 	chan->adapter.id			= I2C_HW_B_INTELFB;
 	chan->adapter.algo_data		= &chan->algo;
diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c
index 5ec718a5fe2257c093ccaf74f550ba9100bf4c27..4baab7be58de4f075de0f197ac5b019da3d35eb4 100644
--- a/drivers/video/matrox/i2c-matroxfb.c
+++ b/drivers/video/matrox/i2c-matroxfb.c
@@ -111,7 +111,7 @@ static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo,
 	b->mask.data = data;
 	b->mask.clock = clock;
 	b->adapter = matrox_i2c_adapter_template;
-	snprintf(b->adapter.name, I2C_NAME_SIZE, name,
+	snprintf(b->adapter.name, sizeof(b->adapter.name), name,
 		minfo->fbcon.node);
 	i2c_set_adapdata(&b->adapter, b);
 	b->adapter.algo_data = &b->bac;
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 47c2a190737207225f557d2e945e6e2fe8e21bdc..953e71fb07b4e71fe7f3ed8eda32954db2ec3ef7 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -140,25 +140,30 @@ struct i2c_driver {
 };
 #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver)
 
-#define I2C_NAME_SIZE	50
-
-/*
- * i2c_client identifies a single device (i.e. chip) that is connected to an
- * i2c bus. The behaviour is defined by the routines of the driver. This
- * function is mainly used for lookup & other admin. functions.
+#define I2C_NAME_SIZE	20
+
+/**
+ * struct i2c_client - represent an I2C slave device
+ * @addr: Address used on the I2C bus connected to the parent adapter.
+ * @name: Indicates the type of the device, usually a chip name that's
+ *	generic enough to hide second-sourcing and compatible revisions.
+ * @dev: Driver model device node for the slave.
+ *
+ * An i2c_client identifies a single device (i.e. chip) connected to an
+ * i2c bus. The behaviour is defined by the routines of the driver.
  */
 struct i2c_client {
-	unsigned int flags;		/* div., see below		*/
+	unsigned short flags;		/* div., see below		*/
 	unsigned short addr;		/* chip address - NOTE: 7bit	*/
 					/* addresses are stored in the	*/
 					/* _LOWER_ 7 bits		*/
+	char name[I2C_NAME_SIZE];
 	struct i2c_adapter *adapter;	/* the adapter we sit on	*/
 	struct i2c_driver *driver;	/* and our access routines	*/
 	int usage_count;		/* How many accesses currently  */
 					/* to the client		*/
 	struct device dev;		/* the device structure		*/
 	struct list_head list;
-	char name[I2C_NAME_SIZE];
 	struct completion released;
 };
 #define to_i2c_client(d) container_of(d, struct i2c_client, dev)
@@ -231,7 +236,7 @@ struct i2c_adapter {
 	int nr;
 	struct list_head clients;
 	struct list_head list;
-	char name[I2C_NAME_SIZE];
+	char name[48];
 	struct completion dev_released;
 };
 #define dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)