mac80211: rt2x00: import upstream changes and rebase our patches

Some of our local patches have been accepted upstream. And there are
some more relevant changes (mostly for rt2800usb). Import them and
rebase our remaining local patches on top.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 75 insertions, 0 deletions

diff --git a/package/kernel/mac80211/patches/020-03-rt2x00usb-fix-anchor-initialization.patch b/package/kernel/mac80211/patches/020-03-rt2x00usb-fix-anchor-initialization.patch
new file mode 100644
index 0000000000..78d8ac63d8
--- /dev/null
+++ b/package/kernel/mac80211/patches/020-03-rt2x00usb-fix-anchor-initialization.patch
@@ -0,0 +1,75 @@
+From 0488a6121dfe6cbd44de15ea3627913b7549a1e9 Mon Sep 17 00:00:00 2001
+From: Stanislaw Gruszka <sgruszka@redhat.com>
+Date: Wed, 8 Feb 2017 12:18:10 +0100
+Subject: [PATCH 03/19] rt2x00usb: fix anchor initialization
+
+If device fail to initialize we can OOPS in rt2x00lib_remove_dev(), due
+to using uninitialized usb_anchor structure:
+
+[  855.435820] ieee80211 phy3: rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for offset 0x1000 with error -19
+[  855.435826] ieee80211 phy3: rt2800_probe_rt: Error - Invalid RT chipset 0x0000, rev 0000 detected
+[  855.435829] ieee80211 phy3: rt2x00lib_probe_dev: Error - Failed to allocate device
+[  855.435845] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
+[  855.435900] IP: _raw_spin_lock_irq+0xd/0x30
+[  855.435926] PGD 0
+[  855.435953] Oops: 0002 [#1] SMP
+<snip>
+[  855.437011] Call Trace:
+[  855.437029]  ? usb_kill_anchored_urbs+0x27/0xc0
+[  855.437061]  rt2x00lib_remove_dev+0x190/0x1c0 [rt2x00lib]
+[  855.437097]  rt2x00lib_probe_dev+0x246/0x7a0 [rt2x00lib]
+[  855.437149]  ? ieee80211_roc_setup+0x9e/0xd0 [mac80211]
+[  855.437183]  ? __kmalloc+0x1af/0x1f0
+[  855.437207]  ? rt2x00usb_probe+0x13d/0xc50 [rt2x00usb]
+[  855.437240]  rt2x00usb_probe+0x155/0xc50 [rt2x00usb]
+[  855.437273]  rt2800usb_probe+0x15/0x20 [rt2800usb]
+[  855.437304]  usb_probe_interface+0x159/0x2d0
+[  855.437333]  driver_probe_device+0x2bb/0x460
+
+Patch changes initialization sequence to fix the problem.
+
+Cc: Vishal Thanki <vishalthanki@gmail.com>
+Fixes: 8b4c0009313f ("rt2x00usb: Use usb anchor to manage URB")
+Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
+Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
+---
+ drivers/net/wireless/ralink/rt2x00/rt2x00usb.c | 13 ++++++++-----
+ 1 file changed, 8 insertions(+), 5 deletions(-)
+
+diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c b/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
+index fe13dd07cc2a..c696f0ad6a68 100644
+--- a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
+@@ -825,10 +825,6 @@ int rt2x00usb_probe(struct usb_interface *usb_intf,
+ 	if (retval)
+ 		goto exit_free_device;
+ 
+-	retval = rt2x00lib_probe_dev(rt2x00dev);
+-	if (retval)
+-		goto exit_free_reg;
+-
+ 	rt2x00dev->anchor = devm_kmalloc(&usb_dev->dev,
+ 					sizeof(struct usb_anchor),
+ 					GFP_KERNEL);
+@@ -836,10 +832,17 @@ int rt2x00usb_probe(struct usb_interface *usb_intf,
+ 		retval = -ENOMEM;
+ 		goto exit_free_reg;
+ 	}
+-
+ 	init_usb_anchor(rt2x00dev->anchor);
++
++	retval = rt2x00lib_probe_dev(rt2x00dev);
++	if (retval)
++		goto exit_free_anchor;
++
+ 	return 0;
+ 
++exit_free_anchor:
++	usb_kill_anchored_urbs(rt2x00dev->anchor);
++
+ exit_free_reg:
+ 	rt2x00usb_free_reg(rt2x00dev);
+ 
+-- 
+2.12.1
+