From: "John W. Linville" <linville@tuxdriver.com>
To: Holger Schurig <hs4233@mail.mn-solutions.de>
Cc: linux-wireless@vger.kernel.org,
Johannes Berg <johannes@sipsolutions.net>
Subject: Re: [PATCH] cfg80211: no cookies in cfg80211_send_ABCD()
Date: Wed, 14 Oct 2009 16:08:38 -0400 [thread overview]
Message-ID: <20091014200837.GA11962@tuxdriver.com> (raw)
In-Reply-To: <200910140906.16111.hs4233@mail.mn-solutions.de>
This doesn't appear to be any different (other than the subject)
than the previous version?
John
On Wed, Oct 14, 2009 at 09:06:16AM +0200, Holger Schurig wrote:
> Get rid of cookies in cfg80211_send_XXX() functions.
>
> Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
>
> --- linux-wl.orig/include/net/cfg80211.h
> +++ linux-wl/include/net/cfg80211.h
> @@ -1809,30 +1809,45 @@
> * @dev: network device
> * @buf: deauthentication frame (header + body)
> * @len: length of the frame data
> - * @cookie: cookie from ->deauth if called within that callback,
> - * %NULL otherwise
> *
> * This function is called whenever deauthentication has been processed in
> * station mode. This includes both received deauthentication frames and
> * locally generated ones. This function may sleep.
> */
> -void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len,
> - void *cookie);
> +void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
> +
> +/**
> + * __cfg80211_send_deauth - notification of processed deauthentication
> + * @dev: network device
> + * @buf: deauthentication frame (header + body)
> + * @len: length of the frame data
> + *
> + * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
> + */
> +void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
>
> /**
> * cfg80211_send_disassoc - notification of processed disassociation
> * @dev: network device
> * @buf: disassociation response frame (header + body)
> * @len: length of the frame data
> - * @cookie: cookie from ->disassoc if called within that callback,
> - * %NULL otherwise
> *
> * This function is called whenever disassociation has been processed in
> * station mode. This includes both received disassociation frames and locally
> * generated ones. This function may sleep.
> */
> -void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len,
> - void *cookie);
> +void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
> +
> +/**
> + * __cfg80211_send_disassoc - notification of processed disassociation
> + * @dev: network device
> + * @buf: disassociation response frame (header + body)
> + * @len: length of the frame data
> + *
> + * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
> + */
> +void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
> + size_t len);
>
> /**
> * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
> --- linux-wl.orig/net/wireless/mlme.c
> +++ linux-wl/net/wireless/mlme.c
> @@ -121,7 +121,7 @@
> }
> EXPORT_SYMBOL(cfg80211_send_rx_assoc);
>
> -static void __cfg80211_send_deauth(struct net_device *dev,
> +void __cfg80211_send_deauth(struct net_device *dev,
> const u8 *buf, size_t len)
> {
> struct wireless_dev *wdev = dev->ieee80211_ptr;
> @@ -177,27 +177,19 @@
> false, NULL);
> }
> }
> +EXPORT_SYMBOL(__cfg80211_send_deauth);
>
> -
> -void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len,
> - void *cookie)
> +void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len)
> {
> struct wireless_dev *wdev = dev->ieee80211_ptr;
>
> - BUG_ON(cookie && wdev != cookie);
> -
> - if (cookie) {
> - /* called within callback */
> - __cfg80211_send_deauth(dev, buf, len);
> - } else {
> - wdev_lock(wdev);
> - __cfg80211_send_deauth(dev, buf, len);
> - wdev_unlock(wdev);
> - }
> + wdev_lock(wdev);
> + __cfg80211_send_deauth(dev, buf, len);
> + wdev_unlock(wdev);
> }
> EXPORT_SYMBOL(cfg80211_send_deauth);
>
> -static void __cfg80211_send_disassoc(struct net_device *dev,
> +void __cfg80211_send_disassoc(struct net_device *dev,
> const u8 *buf, size_t len)
> {
> struct wireless_dev *wdev = dev->ieee80211_ptr;
> @@ -238,22 +230,15 @@
> from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
> __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
> }
> +EXPORT_SYMBOL(__cfg80211_send_disassoc);
>
> -void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len,
> - void *cookie)
> +void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len)
> {
> struct wireless_dev *wdev = dev->ieee80211_ptr;
>
> - BUG_ON(cookie && wdev != cookie);
> -
> - if (cookie) {
> - /* called within callback */
> - __cfg80211_send_disassoc(dev, buf, len);
> - } else {
> - wdev_lock(wdev);
> - __cfg80211_send_disassoc(dev, buf, len);
> - wdev_unlock(wdev);
> - }
> + wdev_lock(wdev);
> + __cfg80211_send_disassoc(dev, buf, len);
> + wdev_unlock(wdev);
> }
> EXPORT_SYMBOL(cfg80211_send_disassoc);
>
> --- linux-wl.orig/net/mac80211/mlme.c
> +++ linux-wl/net/mac80211/mlme.c
> @@ -458,9 +458,15 @@
> mgmt->u.deauth.reason_code = cpu_to_le16(reason);
>
> if (stype == IEEE80211_STYPE_DEAUTH)
> - cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len, cookie);
> + if (cookie)
> + __cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
> + else
> + cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
> else
> - cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len, cookie);
> + if (cookie)
> + __cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
> + else
> + cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
> ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
> }
>
> @@ -1959,12 +1965,10 @@
> /* no action */
> break;
> case RX_MGMT_CFG80211_DEAUTH:
> - cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len,
> - NULL);
> + cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
> break;
> case RX_MGMT_CFG80211_DISASSOC:
> - cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len,
> - NULL);
> + cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
> break;
> default:
> WARN(1, "unexpected: %d", rma);
> @@ -2019,7 +2023,7 @@
> cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, skb->len);
> break;
> case RX_MGMT_CFG80211_DEAUTH:
> - cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len, NULL);
> + cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
> break;
> default:
> WARN(1, "unexpected: %d", rma);
>
> --
> http://www.holgerschurig.de
>
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
next prev parent reply other threads:[~2009-10-14 20:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-14 7:06 [PATCH] cfg80211: no cookies in cfg80211_send_ABCD() Holger Schurig
2009-10-14 20:08 ` John W. Linville [this message]
2009-10-15 6:54 ` Holger Schurig
2009-10-15 13:02 ` John W. Linville
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