[kernel/f15] Add patch to fix ipw2200 (rhbz 783708)

[Josh Boyer]

commit 0b9442a5b4b82051cae24a66581066ce11dca34c
Author: Josh Boyer <jwboyer at redhat.com>
Date:   Tue Apr 24 08:47:28 2012 -0400

    Add patch to fix ipw2200 (rhbz 783708)

 ...ion-in-the-command-completion-acknowledge.patch |   69 ++++++++++++++++++++
 kernel.spec                                        |   11 +++-
 2 files changed, 79 insertions(+), 1 deletions(-)
---
diff --git a/ipw2200-Fix-race-condition-in-the-command-completion-acknowledge.patch b/ipw2200-Fix-race-condition-in-the-command-completion-acknowledge.patch
new file mode 100644
index 0000000..3b7451f
--- /dev/null
+++ b/ipw2200-Fix-race-condition-in-the-command-completion-acknowledge.patch
@@ -0,0 +1,69 @@
+Driver incorrectly validates command completion: instead of waiting
+for a command to be acknowledged it continues execution.  Most of the
+time driver gets acknowledge of the command completion in a tasklet
+before it executes the next one. But sometimes it sends the next
+command before it gets acknowledge for the previous one. In such a
+case one of the following error messages appear in the log:
+
+Failed to send SYSTEM_CONFIG: Already sending a command.
+Failed to send ASSOCIATE: Already sending a command.
+Failed to send TX_POWER: Already sending a command.
+
+After that you need to reload the driver to get it working again.
+
+This bug occurs during roammaping (reported by Sam Varshavchik)
+https://bugzilla.redhat.com/show_bug.cgi?id=738508
+and machine booting (reported by Tom Gundersen and Mads Kiilerich)
+https://bugs.archlinux.org/task/28097
+https://bugzilla.redhat.com/show_bug.cgi?id=802106
+
+This patch doesn't fix the delay issue during firmware load.
+But at least device now works as usual after boot.
+
+Cc: stable at kernel.org
+Signed-off-by: Stanislav Yakovlev <stas.yakovlev at gmail.com>
+---
+ drivers/net/wireless/ipw2x00/ipw2200.c |   13 ++++++++++++-
+ 1 files changed, 12 insertions(+), 1 deletions(-)
+
+diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
+index 4130802..8cbafa5 100644
+--- a/drivers/net/wireless/ipw2x00/ipw2200.c
++++ b/drivers/net/wireless/ipw2x00/ipw2200.c
+@@ -2192,6 +2192,7 @@ static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd)
+ {
+ 	int rc = 0;
+ 	unsigned long flags;
++	unsigned long now, end;
+ 
+ 	spin_lock_irqsave(&priv->lock, flags);
+ 	if (priv->status & STATUS_HCMD_ACTIVE) {
+@@ -2233,10 +2234,20 @@ static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd)
+ 	}
+ 	spin_unlock_irqrestore(&priv->lock, flags);
+ 
++	now = jiffies;
++	end = now + HOST_COMPLETE_TIMEOUT;
++again:
+ 	rc = wait_event_interruptible_timeout(priv->wait_command_queue,
+ 					      !(priv->
+ 						status & STATUS_HCMD_ACTIVE),
+-					      HOST_COMPLETE_TIMEOUT);
++					      end - now);
++	if (rc < 0) {
++		now = jiffies;
++		if (time_before(now, end))
++			goto again;
++		rc = 0;
++	}
++
+ 	if (rc == 0) {
+ 		spin_lock_irqsave(&priv->lock, flags);
+ 		if (priv->status & STATUS_HCMD_ACTIVE) {
+-- 
+1.7.2.5
+
+--
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\ No newline at end of file
diff --git a/kernel.spec b/kernel.spec
index 97fbc40..4f9ea94 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -42,7 +42,7 @@ Summary: The Linux kernel
 # When changing real_sublevel below, reset this by hand to 1
 # (or to 0 and then use rpmdev-bumpspec).
 #
-%global baserelease 1
+%global baserelease 2
 %global fedora_build %{baserelease}
 
 # real_sublevel is the 3.x kernel version we're starting with
@@ -719,6 +719,9 @@ Patch22010: memblock-memblock-should-be-able-to-handle-zero-leng.patch
 
 Patch22011: input-synaptics-fix-regression-with-image-sensor-trackpads.patch
 
+#rhbz 783708 
+Patch22012: ipw2200-Fix-race-condition-in-the-command-completion-acknowledge.patch
+
 # END OF PATCH DEFINITIONS
 
 %endif
@@ -1331,6 +1334,9 @@ ApplyPatch memblock-memblock-should-be-able-to-handle-zero-leng.patch
 
 ApplyPatch input-synaptics-fix-regression-with-image-sensor-trackpads.patch
 
+#rhbz 783708
+ApplyPatch ipw2200-Fix-race-condition-in-the-command-completion-acknowledge.patch
+
 # END OF PATCH APPLICATIONS
 
 %endif
@@ -1983,6 +1989,9 @@ fi
 # and build.
 
 %changelog
+* Tue Apr 24 2012 Josh Boyer <jwboyer at redhat.com>
+- Add patch to fix ipw2200 (rhbz 783708)
+
 * Mon Apr 23 2012 Josh Boyer <jwboyer at redhat.com>
 - Linux 3.3.3