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Re: [PATCH] rtl8187b work in progress...

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On Tue, 2008-04-01 at 14:24 -0400, John W. Linville wrote:
> No idea if it even compiles...

Sorry for delay.  Thanks for the code!  It needs some minor changes to
compile:

diff --git a/drivers/net/wireless/rtl8187.h b/drivers/net/wireless/rtl8187.h
index 4c297d1..35c6486 100644
--- a/drivers/net/wireless/rtl8187.h
+++ b/drivers/net/wireless/rtl8187.h
@@ -50,6 +50,13 @@ struct rtl8187_tx_info {
 	struct ieee80211_hw *dev;
 };
 
+enum {
+	DEVICE_RTL8187,
+	DEVICE_RTL8187B
+};
+
+#define RTL818X_MSR_ENEDCA		(1 << 4)
+
 /* Tx flags are common between rtl8187 and rtl8187b */
 #define RTL8187_TX_FLAG_NO_ENCRYPT	(1 << 15)
 #define RTL8187_TX_FLAG_MORE_FRAG	(1 << 17)
diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c
index ec7f80b..b1b2548 100644
--- a/drivers/net/wireless/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl8187_dev.c
@@ -224,7 +224,7 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb,
 	info->urb = urb;
 	info->dev = dev;
 	usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, 2),
-			  priv->is_rtl8187b ? hdr_b : hdr,
+			  priv->is_rtl8187b ? (void *)hdr_b : (void *)hdr,
 			  skb->len, rtl8187_tx_cb, skb);
 	usb_submit_urb(urb, GFP_ATOMIC);
 

Plus there are spurious messages about uninitialized hdr and hdr_b in
rtl8187_tx().  Perhaps a cleaner solution would be to use a union or
separate functions to populate the header, but that's details.  sparse
doesn't report anything serious.

Anyway, the module loads fine:

rtl8187 1-1:1.0: usb_probe_interface
rtl8187 1-1:1.0: usb_probe_interface - got id
phy2: Selected rate control algorithm 'pid'
phy2: hwaddr 00:14:d1:45:a9:0b, rtl8187 V0 + rtl8225
usbcore: registered new interface driver rtl8187

But if I bring the interface up, it takes a lot of time, and I get this
in the kernel log:

phy2: RF Calibration Failed! 0

Scanning causes immediate kernel panic in
ieee80211_generic_frame_duration(), which is called from rtl8187_tx().
Sorry, no time to capture the backtrace now, but it's the code added by
you.

-- 
Regards,
Pavel Roskin
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