After the mac80211 mlme cleanup, we can require that
the MLME functions in cfg80211 can sleep. This will
simplify future work in cfg80211 a lot.
Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
---
include/net/cfg80211.h | 30 +++++++++++++---------------
net/mac80211/mlme.c | 26 ++++++++----------------
net/wireless/mlme.c | 51 +++++++++++++++++++++++++++++++------------------
3 files changed, 56 insertions(+), 51 deletions(-)
--- wireless-testing.orig/include/net/cfg80211.h 2009-07-07 03:37:04.000000000 +0200
+++ wireless-testing/include/net/cfg80211.h 2009-07-07 03:37:04.000000000 +0200
@@ -1721,70 +1721,68 @@ void cfg80211_unlink_bss(struct wiphy *w
* @dev: network device
* @buf: authentication frame (header + body)
* @len: length of the frame data
- * @gfp: allocation flags
*
* This function is called whenever an authentication has been processed in
* station mode. The driver is required to call either this function or
* cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
- * call.
+ * call. This function may sleep.
*/
-void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp);
+void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
/**
* cfg80211_send_auth_timeout - notification of timed out authentication
* @dev: network device
* @addr: The MAC address of the device with which the authentication timed out
- * @gfp: allocation flags
+ *
+ * This function may sleep.
*/
-void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp);
+void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
/**
* cfg80211_send_rx_assoc - notification of processed association
* @dev: network device
* @buf: (re)association response frame (header + body)
* @len: length of the frame data
- * @gfp: allocation flags
*
* This function is called whenever a (re)association response has been
* processed in station mode. The driver is required to call either this
* function or cfg80211_send_assoc_timeout() to indicate the result of
- * cfg80211_ops::assoc() call.
+ * cfg80211_ops::assoc() call. This function may sleep.
*/
-void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp);
+void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);
/**
* cfg80211_send_assoc_timeout - notification of timed out association
* @dev: network device
* @addr: The MAC address of the device with which the association timed out
- * @gfp: allocation flags
+ *
+ * This function may sleep.
*/
-void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp);
+void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
/**
* cfg80211_send_deauth - notification of processed deauthentication
* @dev: network device
* @buf: deauthentication frame (header + body)
* @len: length of the frame data
- * @gfp: allocation flags
*
* This function is called whenever deauthentication has been processed in
* station mode. This includes both received deauthentication frames and
- * locally generated ones.
+ * locally generated ones. This function may sleep.
*/
-void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp);
+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
- * @gfp: allocation flags
*
* This function is called whenever disassociation has been processed in
* station mode. This includes both received disassociation frames and locally
- * generated ones.
+ * generated ones. This function may sleep.
*/
-void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp);
+void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
/**
* cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
--- wireless-testing.orig/net/wireless/mlme.c 2009-07-07 03:36:58.000000000 +0200
+++ wireless-testing/net/wireless/mlme.c 2009-07-07 03:37:04.000000000 +0200
@@ -12,7 +12,7 @@
#include "core.h"
#include "nl80211.h"
-void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
+void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
@@ -23,6 +23,8 @@ void cfg80211_send_rx_auth(struct net_de
u16 status = le16_to_cpu(mgmt->u.auth.status_code);
bool done = false;
+ might_sleep();
+
for (i = 0; i < MAX_AUTH_BSSES; i++) {
if (wdev->authtry_bsses[i] &&
memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid,
@@ -41,12 +43,12 @@ void cfg80211_send_rx_auth(struct net_de
WARN_ON(!done);
- nl80211_send_rx_auth(rdev, dev, buf, len, gfp);
+ nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
cfg80211_sme_rx_auth(dev, buf, len);
}
EXPORT_SYMBOL(cfg80211_send_rx_auth);
-void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
+void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
{
u16 status_code;
struct wireless_dev *wdev = dev->ieee80211_ptr;
@@ -57,12 +59,14 @@ void cfg80211_send_rx_assoc(struct net_d
int i, ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
bool done;
+ might_sleep();
+
status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
- nl80211_send_rx_assoc(rdev, dev, buf, len, gfp);
+ nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL);
cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
- status_code, gfp);
+ status_code, GFP_KERNEL);
if (status_code == WLAN_STATUS_SUCCESS) {
for (i = 0; wdev->current_bss && i < MAX_AUTH_BSSES; i++) {
@@ -80,7 +84,7 @@ void cfg80211_send_rx_assoc(struct net_d
}
EXPORT_SYMBOL(cfg80211_send_rx_assoc);
-void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
+void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
@@ -90,7 +94,9 @@ void cfg80211_send_deauth(struct net_dev
int i;
bool done = false;
- nl80211_send_deauth(rdev, dev, buf, len, gfp);
+ might_sleep();
+
+ nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL);
if (wdev->current_bss &&
memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
@@ -132,16 +138,17 @@ void cfg80211_send_deauth(struct net_dev
reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0;
- __cfg80211_disconnected(dev, gfp, NULL, 0,
+ __cfg80211_disconnected(dev, GFP_KERNEL, NULL, 0,
reason_code, from_ap);
} else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
- WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
+ WLAN_STATUS_UNSPECIFIED_FAILURE,
+ GFP_KERNEL);
}
}
EXPORT_SYMBOL(cfg80211_send_deauth);
-void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
+void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
@@ -153,7 +160,9 @@ void cfg80211_send_disassoc(struct net_d
bool from_ap;
bool done = false;
- nl80211_send_disassoc(rdev, dev, buf, len, gfp);
+ might_sleep();
+
+ nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL);
if (!wdev->sme_state == CFG80211_SME_CONNECTED)
return;
@@ -177,12 +186,12 @@ void cfg80211_send_disassoc(struct net_d
reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0;
- __cfg80211_disconnected(dev, gfp, NULL, 0,
+ __cfg80211_disconnected(dev, GFP_KERNEL, NULL, 0,
reason_code, from_ap);
}
EXPORT_SYMBOL(cfg80211_send_disassoc);
-void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp)
+void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
@@ -190,10 +199,13 @@ void cfg80211_send_auth_timeout(struct n
int i;
bool done = false;
- nl80211_send_auth_timeout(rdev, dev, addr, gfp);
+ might_sleep();
+
+ nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
if (wdev->sme_state == CFG80211_SME_CONNECTING)
cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
- WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
+ WLAN_STATUS_UNSPECIFIED_FAILURE,
+ GFP_KERNEL);
for (i = 0; addr && i < MAX_AUTH_BSSES; i++) {
if (wdev->authtry_bsses[i] &&
@@ -211,7 +223,7 @@ void cfg80211_send_auth_timeout(struct n
}
EXPORT_SYMBOL(cfg80211_send_auth_timeout);
-void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp)
+void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
@@ -219,10 +231,13 @@ void cfg80211_send_assoc_timeout(struct
int i;
bool done = false;
- nl80211_send_assoc_timeout(rdev, dev, addr, gfp);
+ might_sleep();
+
+ nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL);
if (wdev->sme_state == CFG80211_SME_CONNECTING)
cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
- WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
+ WLAN_STATUS_UNSPECIFIED_FAILURE,
+ GFP_KERNEL);
for (i = 0; addr && i < MAX_AUTH_BSSES; i++) {
if (wdev->auth_bsses[i] &&
--- wireless-testing.orig/net/mac80211/mlme.c 2009-07-07 03:37:03.000000000 +0200
+++ wireless-testing/net/mac80211/mlme.c 2009-07-07 03:37:04.000000000 +0200
@@ -412,11 +412,9 @@ static void ieee80211_send_deauth_disass
mgmt->u.deauth.reason_code = cpu_to_le16(reason);
if (stype == IEEE80211_STYPE_DEAUTH)
- cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, skb->len,
- GFP_KERNEL);
+ cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, skb->len);
else
- cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, skb->len,
- GFP_KERNEL);
+ cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, skb->len);
ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
}
@@ -1839,12 +1837,10 @@ static void ieee80211_sta_rx_queued_mgmt
/* no action */
break;
case RX_MGMT_CFG80211_DEAUTH:
- cfg80211_send_deauth(sdata->dev, (u8 *) mgmt,
- skb->len, GFP_KERNEL);
+ cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
break;
case RX_MGMT_CFG80211_DISASSOC:
- cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt,
- skb->len, GFP_KERNEL);
+ cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
break;
default:
WARN(1, "unexpected: %d", rma);
@@ -1893,12 +1889,10 @@ static void ieee80211_sta_rx_queued_mgmt
/* no action */
break;
case RX_MGMT_CFG80211_AUTH:
- cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, skb->len,
- GFP_KERNEL);
+ cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, skb->len);
break;
case RX_MGMT_CFG80211_ASSOC:
- cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, skb->len,
- GFP_KERNEL);
+ cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, skb->len);
break;
default:
WARN(1, "unexpected: %d", rma);
@@ -2026,13 +2020,11 @@ static void ieee80211_sta_work(struct wo
switch (wk->tries) {
case RX_MGMT_CFG80211_AUTH_TO:
cfg80211_send_auth_timeout(sdata->dev,
- wk->bss->cbss.bssid,
- GFP_KERNEL);
+ wk->bss->cbss.bssid);
break;
case RX_MGMT_CFG80211_ASSOC_TO:
- cfg80211_send_auth_timeout(sdata->dev,
- wk->bss->cbss.bssid,
- GFP_KERNEL);
+ cfg80211_send_assoc_timeout(sdata->dev,
+ wk->bss->cbss.bssid);
break;
default:
WARN(1, "unexpected: %d", wk->tries);
--
--
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