Start port work for usage on 2.6.25. We get up to:

  CC [M]  /home/mcgrof/devel/compat-wireless-2.6/net/mac80211/iface.o
/home/mcgrof/devel/compat-wireless-2.6/net/mac80211/iface.c: In function ‘ieee80211_stop’:
/home/mcgrof/devel/compat-wireless-2.6/net/mac80211/iface.c:388: warning: statement with no effect
/home/mcgrof/devel/compat-wireless-2.6/net/mac80211/iface.c:394: warning: statement with no effect
/home/mcgrof/devel/compat-wireless-2.6/net/mac80211/iface.c: In function ‘ieee80211_if_add’:
/home/mcgrof/devel/compat-wireless-2.6/net/mac80211/iface.c:794: error: ‘struct net_device’ has no member named ‘needed_headroom’
/home/mcgrof/devel/compat-wireless-2.6/net/mac80211/iface.c:801: error: ‘struct net_device’ has no member named ‘needed_tailroom’
make[3]: *** [/home/mcgrof/devel/compat-wireless-2.6/net/mac80211/iface.o] Error 1
make[2]: *** [/home/mcgrof/devel/compat-wireless-2.6/net/mac80211] Error 2
make[1]: *** [_module_/home/mcgrof/devel/compat-wireless-2.6] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.25-020625-generic'

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>

diff --git a/compat/compat-2.6.26.c b/compat/compat-2.6.26.c
index 7f4cf2d40de6bf2690fbc29cc64c6368ccfb7edb..206e2f1b7e20880f235ef0e5050993a4bfd1ee9b 100644 (file)
--- a/compat/compat-2.6.26.c
+++ b/compat/compat-2.6.26.c
@@ -6,6 +6,12 @@
  * published by the Free Software Foundation.
  *
  * Compatibility file for Linux wireless for kernels 2.6.26.
+ *
+ * Copyright holders from ported work:
+ *
+ * Copyright (c) 2002-2003 Patrick Mochel <mochel@osdl.org>
+ * Copyright (c) 2006-2007 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (c) 2006-2007 Novell Inc.
  */
 
 #include <net/compat.h>
@@ -13,6 +19,12 @@
 /* All things not in 2.6.25 */
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26))
 
+#include <linux/kobject.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+
 static void device_create_release(struct device *dev)
 {
        pr_debug("device: '%s': %s\n", dev->bus_id, __func__);
@@ -77,6 +89,52 @@ error:
 }
 EXPORT_SYMBOL_GPL(device_create_vargs);
 
+/**
+ * kobject_set_name_vargs - Set the name of an kobject
+ * @kobj: struct kobject to set the name of
+ * @fmt: format string used to build the name
+ * @vargs: vargs to format the string.
+ */
+static
+int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
+                                 va_list vargs)
+{
+       const char *old_name = kobj->name;
+       char *s;
+
+       if (kobj->name && !fmt)
+               return 0;
+
+       kobj->name = kvasprintf(GFP_KERNEL, fmt, vargs);
+       if (!kobj->name)
+               return -ENOMEM;
+
+       /* ewww... some of these buggers have '/' in the name ... */
+       while ((s = strchr(kobj->name, '/')))
+               s[0] = '!';
+
+       kfree(old_name);
+       return 0;
+}
+
+/**
+ * dev_set_name - set a device name
+ * @dev: device
+ * @fmt: format string for the device's name
+ */
+int dev_set_name(struct device *dev, const char *fmt, ...)
+{
+       va_list vargs;
+       int err;
+
+       va_start(vargs, fmt);
+       err = kobject_set_name_vargs(&dev->kobj, fmt, vargs);
+       va_end(vargs);
+       return err;
+}
+EXPORT_SYMBOL_GPL(dev_set_name);
+
+
 /**
  * device_create_drvdata - creates a device and registers it with sysfs
  * @class: pointer to the struct class that this device should be registered to

diff --git a/compat/compat-2.6.26.h b/compat/compat-2.6.26.h
index 297bcf90c80eb68d2e6527d3b74243fdcdc2ba48..b8cc70b283064dac9b82bdcbb86815ca8a1e37f8 100644 (file)
--- a/compat/compat-2.6.26.h
+++ b/compat/compat-2.6.26.h
@@ -11,6 +11,31 @@
 #include <linux/list.h>
 #include <linux/kernel.h>
 
+#define USHORT_MAX      ((u16)(~0U))
+#define SHORT_MAX       ((s16)(USHORT_MAX>>1))
+#define SHORT_MIN       (-SHORT_MAX - 1)
+
+extern int dev_set_name(struct device *dev, const char *name, ...)
+                       __attribute__((format(printf, 2, 3)));
+
+/**
+ * clamp_t - return a value clamped to a given range using a given type
+ * @type: the type of variable to use
+ * @val: current value
+ * @min: minimum allowable value
+ * @max: maximum allowable value
+ *
+ * This macro does no typechecking and uses temporary variables of type
+ * 'type' to make all the comparisons.
+ */
+#define clamp_t(type, val, min, max) ({                \
+       type __val = (val);                     \
+       type __min = (min);                     \
+       type __max = (max);                     \
+       __val = __val < __min ? __min: __val;   \
+       __val > __max ? __max: __val; })
+
+
 /* from include/linux/device.h */
 /* device_create_drvdata() is new */
 extern struct device *device_create_drvdata(struct class *cls,

diff --git a/compat/compat.diff b/compat/compat.diff
index d83b521024cff9e1ad2066817daeaf26c5b2352f..6498b8ce27ae3d1e536a8b71008e3523afc94cd3 100644 (file)
--- a/compat/compat.diff
+++ b/compat/compat.diff
@@ -976,3 +976,20 @@
        return -EOPNOTSUPP;
  }
  
+--- a/drivers/net/wireless/libertas/defs.h     2009-07-08 14:04:29.692256519 -0700
++++ b/drivers/net/wireless/libertas/defs.h     2009-07-08 14:03:26.712279246 -0700
+@@ -16,6 +16,14 @@
+ #define DRV_NAME "libertas"
+ #endif
+ 
++/*
++ * Really nasty hack to avoid stuffing compat.diff with tons of ifdefs,
++ * we could add this to a compat header file but too lazy to check ml_priv
++ * is not used anywhere else
++ */
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26))
++#define ml_priv priv
++#endif
+ 
+ #define LBS_DEB_ENTER 0x00000001
+ #define LBS_DEB_LEAVE 0x00000002

diff --git a/config.mk b/config.mk
index 447a7c0ba48ee473b14739fab31852cb16025099..505ab2571d7b4472f125aa17ecef8eb411667897 100644 (file)
--- a/config.mk
+++ b/config.mk
@@ -237,8 +237,13 @@ endif
 
 ifneq ($(CONFIG_PCMCIA),)
 
+ifeq ($(shell test $(KERNEL_SUBLEVEL) -le 26 && echo yes),yes)
+CONFIG_LIBERTAS=n
+CONFIG_LIBERTAS_CS=n
+else
 CONFIG_LIBERTAS_CS=m
 NEED_LIBERTAS=y
+endif
 
 endif
 ## end of PCMCIA
@@ -286,9 +291,15 @@ CONFIG_RT73USB=m
 NEED_RT2X00_FIRMWARE=y
 endif
 
+ifeq ($(shell test $(KERNEL_SUBLEVEL) -le 26 && echo yes),yes)
+CONFIG_LIBERTAS_THINFIRM_USB=n
+CONFIG_LIBERTAS_USB=n
+NEED_LIBERTAS=n
+else
 CONFIG_LIBERTAS_THINFIRM_USB=m
 CONFIG_LIBERTAS_USB=m
 NEED_LIBERTAS=y
+endif
 
 endif # end of USB driver list
 
@@ -296,15 +307,26 @@ ifneq ($(CONFIG_SPI_MASTER),)
 
 CONFIG_WL1251=m
 CONFIG_P54_SPI=m
+
+ifeq ($(shell test $(KERNEL_SUBLEVEL) -le 26 && echo yes),yes)
+CONFIG_LIBERTAS_SPI=n
+NEED_LIBERTAS=n
+else
 CONFIG_LIBERTAS_SPI=m
 NEED_LIBERTAS=y
+endif
 
 endif # end of SPI driver list
 
 ifneq ($(CONFIG_MMC),)
 
+ifeq ($(shell test $(KERNEL_SUBLEVEL) -le 26 && echo yes),yes)
+CONFIG_LIBERTAS_SDIO=n
+NEED_LIBERTAS=n
+else
 CONFIG_LIBERTAS_SDIO=m
 NEED_LIBERTAS=y
+endif
 
 # Activate iwmc3200wifi support only on kernel >= 2.6.29.
 # iwmc3200wifi uses new netdev_ops api no supported by old kernel.
@@ -347,11 +369,15 @@ CONFIG_SSB=m
 CONFIG_SSB_SPROM=y
 # CONFIG_SSB_DEBUG=y
 
+ifeq ($(shell test $(KERNEL_SUBLEVEL) -le 26 && echo yes),yes)
+CONFIG_LIBERTAS=n
+else
 ifeq ($(NEED_LIBERTAS),y)
 CONFIG_LIBERTAS_THINFIRM=m
 CONFIG_LIBERTAS=m
 # CONFIG_LIBERTAS_DEBUG=y
 endif
+endif
 
 # We need the backported rfkill module on kernel < 2.6.31.
 # In more recent kernel versions use the in kernel rfkill module.