Search Linux Wireless

Re: [PATCH v5 3/7] wireless: wl12xx: add platform data passing support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



2010/9/6 Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx>:
> We could instead make wl12xx_get_platform_data() return a const pointer
> to its own internal storage instead, or ERR pointers for the various
> failure cases.

Sounds good:

diff --git a/drivers/net/wireless/wl12xx/wl12xx_platform_data.c
b/drivers/net/wireless/wl12xx/wl12xx_platform_data.c
new file mode 100644
index 0000000..973b110
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/wl12xx_platform_data.c
@@ -0,0 +1,28 @@
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/wl12xx.h>
+
+static const struct wl12xx_platform_data *platform_data;
+
+int __init wl12xx_set_platform_data(const struct wl12xx_platform_data *data)
+{
+	if (platform_data)
+		return -EBUSY;
+	if (!data)
+		return -EINVAL;
+
+	platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
+	if (!platform_data)
+		return -ENOMEM;
+
+	return 0;
+}
+
+const struct wl12xx_platform_data *wl12xx_get_platform_data(void)
+{
+	if (!platform_data)
+		return ERR_PTR(-ENODEV);
+
+	return platform_data;
+}
+EXPORT_SYMBOL(wl12xx_get_platform_data);


I'll wait a few days to see if there's any other comment, and then
post v6 with this change.

>
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]
  Powered by Linux