rt2x00: Fix in_atomic() usage
rt73usb and rt2500usb used in_atomic to determine
if a configuration step should be rescheduled or not.
Since in_atomic() is not a valid method to determine
if sleeping is allowed we should fix the way this is handled
by adding a new flag to rt2x00.
In addition mark LED class support for the drivers broken
since that also uses the broken in_atomic() method but
so far no solution exists to have LED triggers work only
in scheduled context.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 8959a68..f5c18f0 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -316,6 +316,35 @@
/*
* Configuration handlers.
*/
+static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
+ const unsigned int filter_flags)
+{
+ u16 reg;
+
+ /*
+ * Start configuration steps.
+ * Note that the version error will always be dropped
+ * and broadcast frames will always be accepted since
+ * there is no filter for it at this time.
+ */
+ rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
+ rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC,
+ !(filter_flags & FIF_FCSFAIL));
+ rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL,
+ !(filter_flags & FIF_PLCPFAIL));
+ rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL,
+ !(filter_flags & FIF_CONTROL));
+ rt2x00_set_field16(®, TXRX_CSR2_DROP_NOT_TO_ME,
+ !(filter_flags & FIF_PROMISC_IN_BSS));
+ rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS,
+ !(filter_flags & FIF_PROMISC_IN_BSS));
+ rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 1);
+ rt2x00_set_field16(®, TXRX_CSR2_DROP_MULTICAST,
+ !(filter_flags & FIF_ALLMULTI));
+ rt2x00_set_field16(®, TXRX_CSR2_DROP_BROADCAST, 0);
+ rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
+}
+
static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
struct rt2x00_intf *intf,
struct rt2x00intf_conf *conf,
@@ -358,18 +387,11 @@
(3 * sizeof(__le16)));
}
-static int rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
- struct rt2x00lib_erp *erp)
+static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
+ struct rt2x00lib_erp *erp)
{
u16 reg;
- /*
- * When in atomic context, we should let rt2x00lib
- * try this configuration again later.
- */
- if (in_atomic())
- return -EAGAIN;
-
rt2500usb_register_read(rt2x00dev, TXRX_CSR1, ®);
rt2x00_set_field16(®, TXRX_CSR1_ACK_TIMEOUT, erp->ack_timeout);
rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
@@ -378,8 +400,6 @@
rt2x00_set_field16(®, TXRX_CSR10_AUTORESPOND_PREAMBLE,
!!erp->short_preamble);
rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
-
- return 0;
}
static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
@@ -1644,6 +1664,7 @@
*/
__set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
__set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
+ __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
/*
* Set the rssi offset.
@@ -1656,78 +1677,6 @@
/*
* IEEE80211 stack callback functions.
*/
-static void rt2500usb_configure_filter(struct ieee80211_hw *hw,
- unsigned int changed_flags,
- unsigned int *total_flags,
- int mc_count,
- struct dev_addr_list *mc_list)
-{
- struct rt2x00_dev *rt2x00dev = hw->priv;
- u16 reg;
-
- /*
- * Mask off any flags we are going to ignore from
- * the total_flags field.
- */
- *total_flags &=
- FIF_ALLMULTI |
- FIF_FCSFAIL |
- FIF_PLCPFAIL |
- FIF_CONTROL |
- FIF_OTHER_BSS |
- FIF_PROMISC_IN_BSS;
-
- /*
- * Apply some rules to the filters:
- * - Some filters imply different filters to be set.
- * - Some things we can't filter out at all.
- */
- if (mc_count)
- *total_flags |= FIF_ALLMULTI;
- if (*total_flags & FIF_OTHER_BSS ||
- *total_flags & FIF_PROMISC_IN_BSS)
- *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
-
- /*
- * Check if there is any work left for us.
- */
- if (rt2x00dev->packet_filter == *total_flags)
- return;
- rt2x00dev->packet_filter = *total_flags;
-
- /*
- * When in atomic context, reschedule and let rt2x00lib
- * call this function again.
- */
- if (in_atomic()) {
- queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work);
- return;
- }
-
- /*
- * Start configuration steps.
- * Note that the version error will always be dropped
- * and broadcast frames will always be accepted since
- * there is no filter for it at this time.
- */
- rt2500usb_register_read(rt2x00dev, TXRX_CSR2, ®);
- rt2x00_set_field16(®, TXRX_CSR2_DROP_CRC,
- !(*total_flags & FIF_FCSFAIL));
- rt2x00_set_field16(®, TXRX_CSR2_DROP_PHYSICAL,
- !(*total_flags & FIF_PLCPFAIL));
- rt2x00_set_field16(®, TXRX_CSR2_DROP_CONTROL,
- !(*total_flags & FIF_CONTROL));
- rt2x00_set_field16(®, TXRX_CSR2_DROP_NOT_TO_ME,
- !(*total_flags & FIF_PROMISC_IN_BSS));
- rt2x00_set_field16(®, TXRX_CSR2_DROP_TODS,
- !(*total_flags & FIF_PROMISC_IN_BSS));
- rt2x00_set_field16(®, TXRX_CSR2_DROP_VERSION_ERROR, 1);
- rt2x00_set_field16(®, TXRX_CSR2_DROP_MULTICAST,
- !(*total_flags & FIF_ALLMULTI));
- rt2x00_set_field16(®, TXRX_CSR2_DROP_BROADCAST, 0);
- rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
-}
-
static int rt2500usb_beacon_update(struct ieee80211_hw *hw,
struct sk_buff *skb,
struct ieee80211_tx_control *control)
@@ -1824,7 +1773,7 @@
.remove_interface = rt2x00mac_remove_interface,
.config = rt2x00mac_config,
.config_interface = rt2x00mac_config_interface,
- .configure_filter = rt2500usb_configure_filter,
+ .configure_filter = rt2x00mac_configure_filter,
.get_stats = rt2x00mac_get_stats,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt2x00mac_conf_tx,
@@ -1848,6 +1797,7 @@
.get_tx_data_len = rt2500usb_get_tx_data_len,
.kick_tx_queue = rt2500usb_kick_tx_queue,
.fill_rxdone = rt2500usb_fill_rxdone,
+ .config_filter = rt2500usb_config_filter,
.config_intf = rt2500usb_config_intf,
.config_erp = rt2500usb_config_erp,
.config = rt2500usb_config,