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From: Jean Delvare <khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org>
To: Linux I2C <linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Cc: Matthieu Castet <castet.matthieu-GANU6spQydw@public.gmane.org>,
	Hans Verkuil <hverkuil-qWit8jRvyhVmR6Xm/wNWPw@public.gmane.org>
Subject: [PATCH 4/4] i2c: Rename i2c_check_addr to i2c_check_addr_busy
Date: Mon, 31 May 2010 13:33:29 +0200	[thread overview]
Message-ID: <20100531133329.0cb9771d@hyperion.delvare> (raw)
In-Reply-To: <20100531132213.65f20b8f-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>

Otherwise it's not clear what it is checking.

Also move the function to save a forward declaration.

Signed-off-by: Jean Delvare <khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org>
---
 drivers/i2c/i2c-core.c |   38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

--- linux-2.6.35-rc0.orig/drivers/i2c/i2c-core.c	2010-05-30 16:17:58.000000000 +0200
+++ linux-2.6.35-rc0/drivers/i2c/i2c-core.c	2010-05-30 16:18:02.000000000 +0200
@@ -47,7 +47,6 @@ static DEFINE_MUTEX(core_lock);
 static DEFINE_IDR(i2c_adapter_idr);
 
 static struct device_type i2c_client_type;
-static int i2c_check_addr(struct i2c_adapter *adapter, int addr);
 static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver);
 
 /* ------------------------------------------------------------------------- */
@@ -408,6 +407,22 @@ static int i2c_check_addr_validity(unsig
 	return 0;
 }
 
+static int __i2c_check_addr_busy(struct device *dev, void *addrp)
+{
+	struct i2c_client	*client = i2c_verify_client(dev);
+	int			addr = *(int *)addrp;
+
+	if (client && client->addr == addr)
+		return -EBUSY;
+	return 0;
+}
+
+static int i2c_check_addr_busy(struct i2c_adapter *adapter, int addr)
+{
+	return device_for_each_child(&adapter->dev, &addr,
+				     __i2c_check_addr_busy);
+}
+
 /**
  * i2c_new_device - instantiate an i2c device
  * @adap: the adapter managing the device
@@ -456,7 +471,7 @@ i2c_new_device(struct i2c_adapter *adap,
 	}
 
 	/* Check for address business */
-	status = i2c_check_addr(adap, client->addr);
+	status = i2c_check_addr_busy(adap, client->addr);
 	if (status)
 		goto out_err;
 
@@ -1064,21 +1079,6 @@ EXPORT_SYMBOL(i2c_del_driver);
 
 /* ------------------------------------------------------------------------- */
 
-static int __i2c_check_addr(struct device *dev, void *addrp)
-{
-	struct i2c_client	*client = i2c_verify_client(dev);
-	int			addr = *(int *)addrp;
-
-	if (client && client->addr == addr)
-		return -EBUSY;
-	return 0;
-}
-
-static int i2c_check_addr(struct i2c_adapter *adapter, int addr)
-{
-	return device_for_each_child(&adapter->dev, &addr, __i2c_check_addr);
-}
-
 /**
  * i2c_use_client - increments the reference count of the i2c client structure
  * @client: the client being referenced
@@ -1369,7 +1369,7 @@ static int i2c_detect_address(struct i2c
 	}
 
 	/* Skip if already in use */
-	if (i2c_check_addr(adapter, addr))
+	if (i2c_check_addr_busy(adapter, addr))
 		return 0;
 
 	/* Make sure there is something at this address */
@@ -1475,7 +1475,7 @@ i2c_new_probed_device(struct i2c_adapter
 		}
 
 		/* Check address availability */
-		if (i2c_check_addr(adap, addr_list[i])) {
+		if (i2c_check_addr_busy(adap, addr_list[i])) {
 			dev_dbg(&adap->dev, "Address 0x%02x already in "
 				"use, not probing\n", addr_list[i]);
 			continue;

-- 
Jean Delvare

  parent reply	other threads:[~2010-05-31 11:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-31 11:22 [PATCH 0/4] Clean up address probing and validity checking code Jean Delvare
     [not found] ` <20100531132213.65f20b8f-ig7AzVSIIG7kN2dkZ6Wm7A@public.gmane.org>
2010-05-31 11:30   ` [PATCH 1/4] i2c: Share the I2C device presence detection code Jean Delvare
2010-05-31 11:30   ` [PATCH 2/4] i2c: Check for address validity on client registration Jean Delvare
2010-05-31 11:31   ` [PATCH 3/4] i2c: Document reserved I2C addresses Jean Delvare
2010-05-31 11:33   ` Jean Delvare [this message]
  -- strict thread matches above, loose matches on Subject: below --
2010-04-09 14:55 [PATCH 4/4] i2c: Rename i2c_check_addr to i2c_check_addr_busy Jean Delvare

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