Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6

[safe/jmp/linux-2.6] / drivers / net / gianfar_sysfs.c

diff --git a/drivers/net/gianfar_sysfs.c b/drivers/net/gianfar_sysfs.c
index aec9ab1..dd26da7 100644 (file)
--- a/drivers/net/gianfar_sysfs.c
+++ b/drivers/net/gianfar_sysfs.c
@@ -33,28 +33,9 @@
 
 #include <asm/uaccess.h>
 #include <linux/module.h>
-#include <linux/version.h>
 
 #include "gianfar.h"
 
-#define GFAR_ATTR(_name) \
-static ssize_t gfar_show_##_name(struct device *dev, \
-        struct device_attribute *attr, char *buf); \
-static ssize_t gfar_set_##_name(struct device *dev, \
-               struct device_attribute *attr, \
-               const char *buf, size_t count); \
-static DEVICE_ATTR(_name, 0644, gfar_show_##_name, gfar_set_##_name)
-
-#define GFAR_CREATE_FILE(_dev, _name) \
-       device_create_file(&_dev->dev, &dev_attr_##_name)
-
-GFAR_ATTR(bd_stash);
-GFAR_ATTR(rx_stash_size);
-GFAR_ATTR(rx_stash_index);
-GFAR_ATTR(fifo_threshold);
-GFAR_ATTR(fifo_starve);
-GFAR_ATTR(fifo_starve_off);
-
 static ssize_t gfar_show_bd_stash(struct device *dev,
                                  struct device_attribute *attr, char *buf)
 {
@@ -72,6 +53,9 @@ static ssize_t gfar_set_bd_stash(struct device *dev,
        u32 temp;
        unsigned long flags;
 
+       if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_BD_STASHING))
+               return count;
+
        /* Find out the new setting */
        if (!strncmp("on", buf, count - 1) || !strncmp("1", buf, count - 1))
                new_setting = 1;
@@ -100,6 +84,8 @@ static ssize_t gfar_set_bd_stash(struct device *dev,
        return count;
 }
 
+static DEVICE_ATTR(bd_stash, 0644, gfar_show_bd_stash, gfar_set_bd_stash);
+
 static ssize_t gfar_show_rx_stash_size(struct device *dev,
                                       struct device_attribute *attr, char *buf)
 {
@@ -117,12 +103,15 @@ static ssize_t gfar_set_rx_stash_size(struct device *dev,
        u32 temp;
        unsigned long flags;
 
+       if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_BUF_STASHING))
+               return count;
+
        spin_lock_irqsave(&priv->rxlock, flags);
        if (length > priv->rx_buffer_size)
-               return count;
+               goto out;
 
        if (length == priv->rx_stash_size)
-               return count;
+               goto out;
 
        priv->rx_stash_size = length;
 
@@ -141,11 +130,15 @@ static ssize_t gfar_set_rx_stash_size(struct device *dev,
 
        gfar_write(&priv->regs->attr, temp);
 
+out:
        spin_unlock_irqrestore(&priv->rxlock, flags);
 
        return count;
 }
 
+static DEVICE_ATTR(rx_stash_size, 0644, gfar_show_rx_stash_size,
+                  gfar_set_rx_stash_size);
+
 /* Stashing will only be enabled when rx_stash_size != 0 */
 static ssize_t gfar_show_rx_stash_index(struct device *dev,
                                        struct device_attribute *attr,
@@ -165,12 +158,15 @@ static ssize_t gfar_set_rx_stash_index(struct device *dev,
        u32 temp;
        unsigned long flags;
 
+       if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_BUF_STASHING))
+               return count;
+
        spin_lock_irqsave(&priv->rxlock, flags);
        if (index > priv->rx_stash_size)
-               return count;
+               goto out;
 
        if (index == priv->rx_stash_index)
-               return count;
+               goto out;
 
        priv->rx_stash_index = index;
 
@@ -179,11 +175,15 @@ static ssize_t gfar_set_rx_stash_index(struct device *dev,
        temp |= ATTRELI_EI(index);
        gfar_write(&priv->regs->attreli, flags);
 
+out:
        spin_unlock_irqrestore(&priv->rxlock, flags);
 
        return count;
 }
 
+static DEVICE_ATTR(rx_stash_index, 0644, gfar_show_rx_stash_index,
+                  gfar_set_rx_stash_index);
+
 static ssize_t gfar_show_fifo_threshold(struct device *dev,
                                        struct device_attribute *attr,
                                        char *buf)
@@ -219,6 +219,9 @@ static ssize_t gfar_set_fifo_threshold(struct device *dev,
        return count;
 }
 
+static DEVICE_ATTR(fifo_threshold, 0644, gfar_show_fifo_threshold,
+                  gfar_set_fifo_threshold);
+
 static ssize_t gfar_show_fifo_starve(struct device *dev,
                                     struct device_attribute *attr, char *buf)
 {
@@ -253,6 +256,9 @@ static ssize_t gfar_set_fifo_starve(struct device *dev,
        return count;
 }
 
+static DEVICE_ATTR(fifo_starve, 0644, gfar_show_fifo_starve,
+                  gfar_set_fifo_starve);
+
 static ssize_t gfar_show_fifo_starve_off(struct device *dev,
                                         struct device_attribute *attr,
                                         char *buf)
@@ -288,24 +294,26 @@ static ssize_t gfar_set_fifo_starve_off(struct device *dev,
        return count;
 }
 
+static DEVICE_ATTR(fifo_starve_off, 0644, gfar_show_fifo_starve_off,
+                  gfar_set_fifo_starve_off);
+
 void gfar_init_sysfs(struct net_device *dev)
 {
        struct gfar_private *priv = netdev_priv(dev);
+       int rc;
 
        /* Initialize the default values */
-       priv->rx_stash_size = DEFAULT_STASH_LENGTH;
-       priv->rx_stash_index = DEFAULT_STASH_INDEX;
        priv->fifo_threshold = DEFAULT_FIFO_TX_THR;
        priv->fifo_starve = DEFAULT_FIFO_TX_STARVE;
        priv->fifo_starve_off = DEFAULT_FIFO_TX_STARVE_OFF;
-       priv->bd_stash_en = DEFAULT_BD_STASH;
 
        /* Create our sysfs files */
-       GFAR_CREATE_FILE(dev, bd_stash);
-       GFAR_CREATE_FILE(dev, rx_stash_size);
-       GFAR_CREATE_FILE(dev, rx_stash_index);
-       GFAR_CREATE_FILE(dev, fifo_threshold);
-       GFAR_CREATE_FILE(dev, fifo_starve);
-       GFAR_CREATE_FILE(dev, fifo_starve_off);
-
+       rc = device_create_file(&dev->dev, &dev_attr_bd_stash);
+       rc |= device_create_file(&dev->dev, &dev_attr_rx_stash_size);
+       rc |= device_create_file(&dev->dev, &dev_attr_rx_stash_index);
+       rc |= device_create_file(&dev->dev, &dev_attr_fifo_threshold);
+       rc |= device_create_file(&dev->dev, &dev_attr_fifo_starve);
+       rc |= device_create_file(&dev->dev, &dev_attr_fifo_starve_off);
+       if (rc)
+               dev_err(&dev->dev, "Error creating gianfar sysfs files.\n");
 }