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Message-ID: <20080304212953.GB3158@tuxdriver.com>
Date: Tue, 4 Mar 2008 16:29:53 -0500
From: "John W. Linville" <linville@...driver.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: pull request: wireless-2.6 2008-03-04
Dave,
Here is today's round of fixes for the 2.6.25 tree. These are mostly
simple fixes, even one-liners. The rc80211-pid patch is, of course, an
exception...
conflicts:
net/mac80211/rc80211_pid_algo.c
After pushing to Linus and pulling back into net-2.6.26, simply take
all the _first_ blocks (i.e. between "<<<<" and "====") of conflicting
lines. This is due to commit "rc80211-pid: fix rate adjustment"
being a backport of a change already in net-2.6.26 with the same title.
Please let me know if there are problems!
Thanks,
John
---
Individual patches are available here:
http://www.kernel.org/pub/linux/kernel/people/linville/wireless-2.6/
---
The following changes since commit 976dde010e513a9c7c3117a32b7b015f84b37430:
Linus Torvalds (1):
Merge branch 'slab-linus' of git://git.kernel.org/.../christoph/vm
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git master
David Woodhouse (1):
libertas: fix sanity check on sequence number in command response
Johannes Berg (2):
p54: fix EEPROM structure endianness
p54: fix eeprom parser length sanity checks
Jussi Kivilinna (1):
rndis_wlan: fix broken data copy
Michael Buesch (1):
b43legacy: Fix module init message
Sebastian Siewior (1):
libertas: compare the current command with response
Stefano Brivio (1):
rc80211-pid: fix rate adjustment
Yoichi Yuasa (1):
ssb: Add pcibios_enable_device() return value check
drivers/net/wireless/b43legacy/main.c | 2 +-
drivers/net/wireless/libertas/cmdresp.c | 8 +--
drivers/net/wireless/p54common.c | 20 ++++---
drivers/net/wireless/p54common.h | 8 +-
drivers/net/wireless/rndis_wlan.c | 8 +--
drivers/ssb/driver_pcicore.c | 5 +-
net/mac80211/rc80211_pid_algo.c | 92 ++++++++++++++----------------
7 files changed, 70 insertions(+), 73 deletions(-)
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index c39de42..5f3f34e 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -3829,7 +3829,7 @@ static void b43legacy_print_driverinfo(void)
#ifdef CONFIG_B43LEGACY_DMA
feat_dma = "D";
#endif
- printk(KERN_INFO "Broadcom 43xx driver loaded "
+ printk(KERN_INFO "Broadcom 43xx-legacy driver loaded "
"[ Features: %s%s%s%s%s, Firmware-ID: "
B43legacy_SUPPORTED_FIRMWARE_ID " ]\n",
feat_pci, feat_leds, feat_rfkill, feat_pio, feat_dma);
diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c
index 159216a..bdc6a1c 100644
--- a/drivers/net/wireless/libertas/cmdresp.c
+++ b/drivers/net/wireless/libertas/cmdresp.c
@@ -562,9 +562,7 @@ int lbs_process_rx_command(struct lbs_private *priv)
}
resp = (void *)priv->upld_buf;
-
- curcmd = le16_to_cpu(resp->command);
-
+ curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
respcmd = le16_to_cpu(resp->command);
result = le16_to_cpu(resp->result);
@@ -572,9 +570,9 @@ int lbs_process_rx_command(struct lbs_private *priv)
respcmd, le16_to_cpu(resp->seqnum), priv->upld_len, jiffies);
lbs_deb_hex(LBS_DEB_HOST, "CMD_RESP", (void *) resp, priv->upld_len);
- if (resp->seqnum != resp->seqnum) {
+ if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
lbs_pr_info("Received CMD_RESP with invalid sequence %d (expected %d)\n",
- le16_to_cpu(resp->seqnum), le16_to_cpu(resp->seqnum));
+ le16_to_cpu(resp->seqnum), le16_to_cpu(priv->cur_cmd->cmdbuf->seqnum));
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = -1;
goto done;
diff --git a/drivers/net/wireless/p54common.c b/drivers/net/wireless/p54common.c
index 5cda49a..d191e05 100644
--- a/drivers/net/wireless/p54common.c
+++ b/drivers/net/wireless/p54common.c
@@ -166,18 +166,23 @@ int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
struct p54_common *priv = dev->priv;
struct eeprom_pda_wrap *wrap = NULL;
struct pda_entry *entry;
- int i = 0;
unsigned int data_len, entry_len;
void *tmp;
int err;
+ u8 *end = (u8 *)eeprom + len;
wrap = (struct eeprom_pda_wrap *) eeprom;
- entry = (void *)wrap->data + wrap->len;
- i += 2;
- i += le16_to_cpu(entry->len)*2;
- while (i < len) {
+ entry = (void *)wrap->data + le16_to_cpu(wrap->len);
+
+ /* verify that at least the entry length/code fits */
+ while ((u8 *)entry <= end - sizeof(*entry)) {
entry_len = le16_to_cpu(entry->len);
data_len = ((entry_len - 1) << 1);
+
+ /* abort if entry exceeds whole structure */
+ if ((u8 *)entry + sizeof(*entry) + data_len > end)
+ break;
+
switch (le16_to_cpu(entry->code)) {
case PDR_MAC_ADDRESS:
SET_IEEE80211_PERM_ADDR(dev, entry->data);
@@ -249,13 +254,12 @@ int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
priv->version = *(u8 *)(entry->data + 1);
break;
case PDR_END:
- i = len;
+ /* make it overrun */
+ entry_len = len;
break;
}
entry = (void *)entry + (entry_len + 1)*2;
- i += 2;
- i += entry_len*2;
}
if (!priv->iq_autocal || !priv->output_limit || !priv->curve_data) {
diff --git a/drivers/net/wireless/p54common.h b/drivers/net/wireless/p54common.h
index a721334..b67ff34 100644
--- a/drivers/net/wireless/p54common.h
+++ b/drivers/net/wireless/p54common.h
@@ -53,10 +53,10 @@ struct pda_entry {
} __attribute__ ((packed));
struct eeprom_pda_wrap {
- u32 magic;
- u16 pad;
- u16 len;
- u32 arm_opcode;
+ __le32 magic;
+ __le16 pad;
+ __le16 len;
+ __le32 arm_opcode;
u8 data[0];
} __attribute__ ((packed));
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index d9460ae..10b776c 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -260,7 +260,7 @@ struct NDIS_802_11_KEY {
__le32 KeyLength;
u8 Bssid[6];
u8 Padding[6];
- __le64 KeyRSC;
+ u8 KeyRSC[8];
u8 KeyMaterial[32];
} __attribute__((packed));
@@ -1508,7 +1508,7 @@ static int rndis_iw_set_encode_ext(struct net_device *dev,
struct usbnet *usbdev = dev->priv;
struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
struct NDIS_802_11_KEY ndis_key;
- int i, keyidx, ret;
+ int keyidx, ret;
u8 *addr;
keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
@@ -1543,9 +1543,7 @@ static int rndis_iw_set_encode_ext(struct net_device *dev,
ndis_key.KeyIndex = cpu_to_le32(keyidx);
if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
- for (i = 0; i < 6; i++)
- ndis_key.KeyRSC |=
- cpu_to_le64(ext->rx_seq[i] << (i * 8));
+ memcpy(ndis_key.KeyRSC, ext->rx_seq, 6);
ndis_key.KeyIndex |= cpu_to_le32(1 << 29);
}
diff --git a/drivers/ssb/driver_pcicore.c b/drivers/ssb/driver_pcicore.c
index 07ab48d..74b9a8a 100644
--- a/drivers/ssb/driver_pcicore.c
+++ b/drivers/ssb/driver_pcicore.c
@@ -111,7 +111,10 @@ static void __init ssb_fixup_pcibridge(struct pci_dev *dev)
/* Enable PCI bridge bus mastering and memory space */
pci_set_master(dev);
- pcibios_enable_device(dev, ~0);
+ if (pcibios_enable_device(dev, ~0) < 0) {
+ ssb_printk(KERN_ERR "PCI: SSB bridge enable failed\n");
+ return;
+ }
/* Enable PCI bridge BAR1 prefetch and burst */
pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3);
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index c339571..3b77410 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -2,7 +2,7 @@
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
* Copyright 2007, Mattias Nissler <mattias.nissler@....de>
- * Copyright 2007, Stefano Brivio <stefano.brivio@...imi.it>
+ * Copyright 2007-2008, Stefano Brivio <stefano.brivio@...imi.it>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -63,72 +63,66 @@
* RC_PID_ARITH_SHIFT.
*/
-
-/* Shift the adjustment so that we won't switch to a lower rate if it exhibited
- * a worse failed frames behaviour and we'll choose the highest rate whose
- * failed frames behaviour is not worse than the one of the original rate
- * target. While at it, check that the adjustment is within the ranges. Then,
- * provide the new rate index. */
-static int rate_control_pid_shift_adjust(struct rc_pid_rateinfo *r,
- int adj, int cur, int l)
-{
- int i, j, k, tmp;
-
- j = r[cur].rev_index;
- i = j + adj;
-
- if (i < 0)
- return r[0].index;
- if (i >= l - 1)
- return r[l - 1].index;
-
- tmp = i;
-
- if (adj < 0) {
- for (k = j; k >= i; k--)
- if (r[k].diff <= r[j].diff)
- tmp = k;
- } else {
- for (k = i + 1; k + i < l; k++)
- if (r[k].diff <= r[i].diff)
- tmp = k;
- }
-
- return r[tmp].index;
-}
-
+/* Adjust the rate while ensuring that we won't switch to a lower rate if it
+ * exhibited a worse failed frames behaviour and we'll choose the highest rate
+ * whose failed frames behaviour is not worse than the one of the original rate
+ * target. While at it, check that the new rate is valid. */
static void rate_control_pid_adjust_rate(struct ieee80211_local *local,
struct sta_info *sta, int adj,
struct rc_pid_rateinfo *rinfo)
{
struct ieee80211_sub_if_data *sdata;
struct ieee80211_hw_mode *mode;
- int newidx;
- int maxrate;
- int back = (adj > 0) ? 1 : -1;
+ int cur_sorted, new_sorted, probe, tmp, n_bitrates;
+ int cur = sta->txrate;
sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
mode = local->oper_hw_mode;
- maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
+ n_bitrates = mode->num_rates;
- newidx = rate_control_pid_shift_adjust(rinfo, adj, sta->txrate,
- mode->num_rates);
+ /* Map passed arguments to sorted values. */
+ cur_sorted = rinfo[cur].rev_index;
+ new_sorted = cur_sorted + adj;
- while (newidx != sta->txrate) {
- if (rate_supported(sta, mode, newidx) &&
- (maxrate < 0 || newidx <= maxrate)) {
- sta->txrate = newidx;
- break;
- }
+ /* Check limits. */
+ if (new_sorted < 0)
+ new_sorted = rinfo[0].rev_index;
+ else if (new_sorted >= n_bitrates)
+ new_sorted = rinfo[n_bitrates - 1].rev_index;
- newidx += back;
+ tmp = new_sorted;
+
+ if (adj < 0) {
+ /* Ensure that the rate decrease isn't disadvantageous. */
+ for (probe = cur_sorted; probe >= new_sorted; probe--)
+ if (rinfo[probe].diff <= rinfo[cur_sorted].diff &&
+ rate_supported(sta, mode, rinfo[probe].index))
+ tmp = probe;
+ } else {
+ /* Look for rate increase with zero (or below) cost. */
+ for (probe = new_sorted + 1; probe < n_bitrates; probe++)
+ if (rinfo[probe].diff <= rinfo[new_sorted].diff &&
+ rate_supported(sta, mode, rinfo[probe].index))
+ tmp = probe;
}
+ /* Fit the rate found to the nearest supported rate. */
+ do {
+ if (rate_supported(sta, mode, rinfo[tmp].index)) {
+ sta->txrate = rinfo[tmp].index;
+ break;
+ }
+ if (adj < 0)
+ tmp--;
+ else
+ tmp++;
+ } while (tmp < n_bitrates && tmp >= 0);
+
#ifdef CONFIG_MAC80211_DEBUGFS
rate_control_pid_event_rate_change(
&((struct rc_pid_sta_info *)sta->rate_ctrl_priv)->events,
- newidx, mode->rates[newidx].rate);
+ cur, mode->rates[cur].rate);
#endif
}
--
John W. Linville
linville@...driver.com
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