diff mbox

compile-error agg-tx.c: =?utf-8?Q?erro?= =?utf-8?Q?r=3A_implicit_declaration_of_function_=E2=80=98kfree=5Frcu?= =?utf-8?B?4oCZ?=

Message ID 20110509114601.GA27067@zenon.in.qult.net (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Ignacy Gawedzki May 9, 2011, 11:46 a.m. UTC
On Fri, May 06, 2011 at 10:35:08AM +0530, thus spake Mohammed Shafi:
> On Thu, May 5, 2011 at 9:20 PM, Andreas Hartmann
> <andihartmann@01019freenet.de> wrote:
> > Hello,
> >
> > since May, there is a compile error in compat-wireless (against kernel
> > 2.6.34):

I, as it appears with many others, have the same kind of trouble compiling the
latests compat-wireless snapshots on some kernels (2.6.38 for me).

Obviously the kfree_rcu machinery should go into some compat/ source file.  In
the meantime, I personnaly reverted these changes (see attached patch) and it
works just fine.

Comments

Mohammed Shafi May 9, 2011, 1:32 p.m. UTC | #1
On Mon, May 9, 2011 at 5:16 PM, Ignacy Gawedzki <i@lri.fr> wrote:
> On Fri, May 06, 2011 at 10:35:08AM +0530, thus spake Mohammed Shafi:
>> On Thu, May 5, 2011 at 9:20 PM, Andreas Hartmann
>> <andihartmann@01019freenet.de> wrote:
>> > Hello,
>> >
>> > since May, there is a compile error in compat-wireless (against kernel
>> > 2.6.34):
>
> I, as it appears with many others, have the same kind of trouble compiling the
> latests compat-wireless snapshots on some kernels (2.6.38 for me).
>
> Obviously the kfree_rcu machinery should go into some compat/ source file.  In
> the meantime, I personnaly reverted these changes (see attached patch) and it
> works just fine.

I blindly used your patch and now the compat-wireless is compiling for me.
thanks a lot.

with regards,
shafi

>
> --
> /* This is not a comment */
>
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Juan Carlos Garza May 9, 2011, 3:20 p.m. UTC | #2
Hi,

On Mon, May 9, 2011 at 3:32 PM, Mohammed Shafi <shafi.wireless@gmail.com> wrote:
> On Mon, May 9, 2011 at 5:16 PM, Ignacy Gawedzki <i@lri.fr> wrote:
>> On Fri, May 06, 2011 at 10:35:08AM +0530, thus spake Mohammed Shafi:
>>> On Thu, May 5, 2011 at 9:20 PM, Andreas Hartmann
>>> <andihartmann@01019freenet.de> wrote:
>>> > Hello,
>>> >
>>> > since May, there is a compile error in compat-wireless (against kernel
>>> > 2.6.34):
>>
>> I, as it appears with many others, have the same kind of trouble compiling the
>> latests compat-wireless snapshots on some kernels (2.6.38 for me).

I'm having this problem as well with a 2.6.24 kernel.

The file /include/linux/rcupdate.h , and maybe other files too,
need to be included in the compat-wireless package
as the function kfree_rcu is actually introduced in a patch for
the current linux-next tree.

I guess they'll be fixing that soon, in the meantime try copying the missing
 file(s) manually.

>>
>> Obviously the kfree_rcu machinery should go into some compat/ source file.  In
>> the meantime, I personnaly reverted these changes (see attached patch) and it
>> works just fine.
>
> I blindly used your patch and now the compat-wireless is compiling for me.
> thanks a lot.
>
> with regards,
> shafi
>
>>
>> --
>> /* This is not a comment */
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
Mohammed Shafi May 9, 2011, 3:59 p.m. UTC | #3
On Mon, May 9, 2011 at 8:50 PM, Juan Carlos Garza
<juancarlosgarza@gmail.com> wrote:
> Hi,
>
> On Mon, May 9, 2011 at 3:32 PM, Mohammed Shafi <shafi.wireless@gmail.com> wrote:
>> On Mon, May 9, 2011 at 5:16 PM, Ignacy Gawedzki <i@lri.fr> wrote:
>>> On Fri, May 06, 2011 at 10:35:08AM +0530, thus spake Mohammed Shafi:
>>>> On Thu, May 5, 2011 at 9:20 PM, Andreas Hartmann
>>>> <andihartmann@01019freenet.de> wrote:
>>>> > Hello,
>>>> >
>>>> > since May, there is a compile error in compat-wireless (against kernel
>>>> > 2.6.34):
>>>
>>> I, as it appears with many others, have the same kind of trouble compiling the
>>> latests compat-wireless snapshots on some kernels (2.6.38 for me).
>
> I'm having this problem as well with a 2.6.24 kernel.
>
> The file /include/linux/rcupdate.h , and maybe other files too,
> need to be included in the compat-wireless package
> as the function kfree_rcu is actually introduced in a patch for
> the current linux-next tree.
>
> I guess they'll be fixing that soon, in the meantime try copying the missing
>  file(s) manually.

Oh ok thanks!

>
>>>
>>> Obviously the kfree_rcu machinery should go into some compat/ source file.  In
>>> the meantime, I personnaly reverted these changes (see attached patch) and it
>>> works just fine.
>>
>> I blindly used your patch and now the compat-wireless is compiling for me.
>> thanks a lot.
>>
>> with regards,
>> shafi
>>
>>>
>>> --
>>> /* This is not a comment */
>>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>
> --
> Juan Carlos Garza
>
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git b/net/mac80211/agg-tx.c a/net/mac80211/agg-tx.c
index 53defaf..63d852c 100644
--- b/net/mac80211/agg-tx.c
+++ a/net/mac80211/agg-tx.c
@@ -136,6 +136,14 @@  void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u1
 	ieee80211_tx_skb(sdata, skb);
 }
 
+static void kfree_tid_tx(struct rcu_head *rcu_head)
+{
+	struct tid_ampdu_tx *tid_tx =
+	    container_of(rcu_head, struct tid_ampdu_tx, rcu_head);
+
+	kfree(tid_tx);
+}
+
 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 				    enum ieee80211_back_parties initiator,
 				    bool tx)
@@ -155,7 +163,7 @@  int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 		/* not even started yet! */
 		rcu_assign_pointer(sta->ampdu_mlme.tid_tx[tid], NULL);
 		spin_unlock_bh(&sta->lock);
-		kfree_rcu(tid_tx, rcu_head);
+		call_rcu(&tid_tx->rcu_head, kfree_tid_tx);
 		return 0;
 	}
 
@@ -314,7 +322,7 @@  void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 		spin_unlock_bh(&sta->lock);
 
 		ieee80211_wake_queue_agg(local, tid);
-		kfree_rcu(tid_tx, rcu_head);
+		call_rcu(&tid_tx->rcu_head, kfree_tid_tx);
 		return;
 	}
 
@@ -693,7 +701,7 @@  void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid)
 
 	ieee80211_agg_splice_finish(local, tid);
 
-	kfree_rcu(tid_tx, rcu_head);
+	call_rcu(&tid_tx->rcu_head, kfree_tid_tx);
 
  unlock_sta:
 	spin_unlock_bh(&sta->lock);
diff --git b/net/mac80211/work.c a/net/mac80211/work.c
index d2e7f0e..a94b312 100644
--- b/net/mac80211/work.c
+++ a/net/mac80211/work.c
@@ -65,9 +65,17 @@  static void run_again(struct ieee80211_local *local,
 		mod_timer(&local->work_timer, timeout);
 }
 
+static void work_free_rcu(struct rcu_head *head)
+{
+	struct ieee80211_work *wk =
+		container_of(head, struct ieee80211_work, rcu_head);
+
+	kfree(wk);
+}
+
 void free_work(struct ieee80211_work *wk)
 {
-	kfree_rcu(wk, rcu_head);
+	call_rcu(&wk->rcu_head, work_free_rcu);
 }
 
 static int ieee80211_compatible_rates(const u8 *supp_rates, int supp_rates_len,