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Subjectpull request: wireless-2.6 2008-10-22
Dave,

Another few fixes intended for 2.6.27... The orinoco one corrects
a problem running with 4k stacks. The other two fix oopses.

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 75e3d8db531b462b875c1adb13eeb6b0be7374c0:
Ilpo Järvinen (1):
tcp: should use number of sack blocks instead of -1

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git master

Andrey Borzenkov (1):
orinoco: reduce stack usage in firmware download path

Bob Copeland (1):
ath5k: fix suspend-related oops on rmmod

Christian Lamparter (1):
p54: enable 2.4/5GHz spectrum by eeprom bits.

drivers/net/wireless/ath5k/base.c | 27 +++++++++++++++------
drivers/net/wireless/ath5k/base.h | 3 +-
drivers/net/wireless/orinoco.c | 42 +++++++++++++++++++++++----------
drivers/net/wireless/p54/p54common.c | 28 ++++++++--------------
4 files changed, 60 insertions(+), 40 deletions(-)

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 9b95c40..0f1d6bd 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -340,9 +340,9 @@ static inline u64 ath5k_extend_tsf(struct ath5k_hw *ah, u32 rstamp)
}

/* Interrupt handling */
-static int ath5k_init(struct ath5k_softc *sc);
+static int ath5k_init(struct ath5k_softc *sc, bool is_resume);
static int ath5k_stop_locked(struct ath5k_softc *sc);
-static int ath5k_stop_hw(struct ath5k_softc *sc);
+static int ath5k_stop_hw(struct ath5k_softc *sc, bool is_suspend);
static irqreturn_t ath5k_intr(int irq, void *dev_id);
static void ath5k_tasklet_reset(unsigned long data);

@@ -646,7 +646,7 @@ ath5k_pci_suspend(struct pci_dev *pdev, pm_message_t state)

ath5k_led_off(sc);

- ath5k_stop_hw(sc);
+ ath5k_stop_hw(sc, true);

free_irq(pdev->irq, sc);
pci_save_state(pdev);
@@ -683,7 +683,7 @@ ath5k_pci_resume(struct pci_dev *pdev)
goto err_no_irq;
}

- err = ath5k_init(sc);
+ err = ath5k_init(sc, true);
if (err)
goto err_irq;
ath5k_led_enable(sc);
@@ -2200,12 +2200,17 @@ ath5k_beacon_config(struct ath5k_softc *sc)
\********************/

static int
-ath5k_init(struct ath5k_softc *sc)
+ath5k_init(struct ath5k_softc *sc, bool is_resume)
{
int ret;

mutex_lock(&sc->lock);

+ if (is_resume && !test_bit(ATH_STAT_STARTED, sc->status))
+ goto out_ok;
+
+ __clear_bit(ATH_STAT_STARTED, sc->status);
+
ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "mode %d\n", sc->opmode);

/*
@@ -2230,12 +2235,15 @@ ath5k_init(struct ath5k_softc *sc)
if (ret)
goto done;

+ __set_bit(ATH_STAT_STARTED, sc->status);
+
/* Set ack to be sent at low bit-rates */
ath5k_hw_set_ack_bitrate_high(sc->ah, false);

mod_timer(&sc->calib_tim, round_jiffies(jiffies +
msecs_to_jiffies(ath5k_calinterval * 1000)));

+out_ok:
ret = 0;
done:
mmiowb();
@@ -2290,7 +2298,7 @@ ath5k_stop_locked(struct ath5k_softc *sc)
* stop is preempted).
*/
static int
-ath5k_stop_hw(struct ath5k_softc *sc)
+ath5k_stop_hw(struct ath5k_softc *sc, bool is_suspend)
{
int ret;

@@ -2321,6 +2329,9 @@ ath5k_stop_hw(struct ath5k_softc *sc)
}
}
ath5k_txbuf_free(sc, sc->bbuf);
+ if (!is_suspend)
+ __clear_bit(ATH_STAT_STARTED, sc->status);
+
mmiowb();
mutex_unlock(&sc->lock);

@@ -2718,12 +2729,12 @@ ath5k_reset_wake(struct ath5k_softc *sc)

static int ath5k_start(struct ieee80211_hw *hw)
{
- return ath5k_init(hw->priv);
+ return ath5k_init(hw->priv, false);
}

static void ath5k_stop(struct ieee80211_hw *hw)
{
- ath5k_stop_hw(hw->priv);
+ ath5k_stop_hw(hw->priv, false);
}

static int ath5k_add_interface(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/ath5k/base.h b/drivers/net/wireless/ath5k/base.h
index 9d0b728..06d1054 100644
--- a/drivers/net/wireless/ath5k/base.h
+++ b/drivers/net/wireless/ath5k/base.h
@@ -128,11 +128,12 @@ struct ath5k_softc {
size_t desc_len; /* size of TX/RX descriptors */
u16 cachelsz; /* cache line size */

- DECLARE_BITMAP(status, 4);
+ DECLARE_BITMAP(status, 5);
#define ATH_STAT_INVALID 0 /* disable hardware accesses */
#define ATH_STAT_MRRETRY 1 /* multi-rate retry support */
#define ATH_STAT_PROMISC 2
#define ATH_STAT_LEDSOFT 3 /* enable LED gpio status */
+#define ATH_STAT_STARTED 4 /* opened & irqs enabled */

unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */
unsigned int curmode; /* current phy mode */
diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c
index 5090477..e0512e4 100644
--- a/drivers/net/wireless/orinoco.c
+++ b/drivers/net/wireless/orinoco.c
@@ -433,7 +433,7 @@ struct fw_info {
const static struct fw_info orinoco_fw[] = {
{ "", "agere_sta_fw.bin", "agere_ap_fw.bin", 0x00390000, 1000 },
{ "", "prism_sta_fw.bin", "prism_ap_fw.bin", 0, 1024 },
- { "symbol_sp24t_prim_fw", "symbol_sp24t_sec_fw", "", 0x00003100, 0x100 }
+ { "symbol_sp24t_prim_fw", "symbol_sp24t_sec_fw", "", 0x00003100, 512 }
};

/* Structure used to access fields in FW
@@ -458,7 +458,7 @@ orinoco_dl_firmware(struct orinoco_private *priv,
int ap)
{
/* Plug Data Area (PDA) */
- __le16 pda[512] = { 0 };
+ __le16 *pda;

hermes_t *hw = &priv->hw;
const struct firmware *fw_entry;
@@ -467,7 +467,11 @@ orinoco_dl_firmware(struct orinoco_private *priv,
const unsigned char *end;
const char *firmware;
struct net_device *dev = priv->ndev;
- int err;
+ int err = 0;
+
+ pda = kzalloc(fw->pda_size, GFP_KERNEL);
+ if (!pda)
+ return -ENOMEM;

if (ap)
firmware = fw->ap_fw;
@@ -478,17 +482,17 @@ orinoco_dl_firmware(struct orinoco_private *priv,
dev->name, firmware);

/* Read current plug data */
- err = hermes_read_pda(hw, pda, fw->pda_addr,
- min_t(u16, fw->pda_size, sizeof(pda)), 0);
+ err = hermes_read_pda(hw, pda, fw->pda_addr, fw->pda_size, 0);
printk(KERN_DEBUG "%s: Read PDA returned %d\n", dev->name, err);
if (err)
- return err;
+ goto free;

err = request_firmware(&fw_entry, firmware, priv->dev);
if (err) {
printk(KERN_ERR "%s: Cannot find firmware %s\n",
dev->name, firmware);
- return -ENOENT;
+ err = -ENOENT;
+ goto free;
}

hdr = (const struct orinoco_fw_header *) fw_entry->data;
@@ -532,6 +536,9 @@ orinoco_dl_firmware(struct orinoco_private *priv,

abort:
release_firmware(fw_entry);
+
+free:
+ kfree(pda);
return err;
}

@@ -549,12 +556,12 @@ symbol_dl_image(struct orinoco_private *priv, const struct fw_info *fw,
int secondary)
{
hermes_t *hw = &priv->hw;
- int ret;
+ int ret = 0;
const unsigned char *ptr;
const unsigned char *first_block;

/* Plug Data Area (PDA) */
- __le16 pda[256];
+ __le16 *pda = NULL;

/* Binary block begins after the 0x1A marker */
ptr = image;
@@ -563,28 +570,33 @@ symbol_dl_image(struct orinoco_private *priv, const struct fw_info *fw,

/* Read the PDA from EEPROM */
if (secondary) {
- ret = hermes_read_pda(hw, pda, fw->pda_addr, sizeof(pda), 1);
+ pda = kzalloc(fw->pda_size, GFP_KERNEL);
+ if (!pda)
+ return -ENOMEM;
+
+ ret = hermes_read_pda(hw, pda, fw->pda_addr, fw->pda_size, 1);
if (ret)
- return ret;
+ goto free;
}

/* Stop the firmware, so that it can be safely rewritten */
if (priv->stop_fw) {
ret = priv->stop_fw(priv, 1);
if (ret)
- return ret;
+ goto free;
}

/* Program the adapter with new firmware */
ret = hermes_program(hw, first_block, end);
if (ret)
- return ret;
+ goto free;

/* Write the PDA to the adapter */
if (secondary) {
size_t len = hermes_blocks_length(first_block);
ptr = first_block + len;
ret = hermes_apply_pda(hw, ptr, pda);
+ kfree(pda);
if (ret)
return ret;
}
@@ -608,6 +620,10 @@ symbol_dl_image(struct orinoco_private *priv, const struct fw_info *fw,
return -ENODEV;

return 0;
+
+free:
+ kfree(pda);
+ return ret;
}


diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index 117c7d3..2d022f8 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -306,8 +306,8 @@ static int p54_convert_rev1(struct ieee80211_hw *dev,
return 0;
}

-static const char *p54_rf_chips[] = { "NULL", "Indigo?", "Duette",
- "Frisbee", "Xbow", "Longbow" };
+static const char *p54_rf_chips[] = { "NULL", "Duette3", "Duette2",
+ "Frisbee", "Xbow", "Longbow", "NULL", "NULL" };
static int p54_init_xbow_synth(struct ieee80211_hw *dev);

static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
@@ -319,6 +319,7 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
void *tmp;
int err;
u8 *end = (u8 *)eeprom + len;
+ u16 synth;
DECLARE_MAC_BUF(mac);

wrap = (struct eeprom_pda_wrap *) eeprom;
@@ -400,8 +401,8 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
tmp = entry->data;
while ((u8 *)tmp < entry->data + data_len) {
struct bootrec_exp_if *exp_if = tmp;
- if (le16_to_cpu(exp_if->if_id) == 0xF)
- priv->rxhw = le16_to_cpu(exp_if->variant) & 0x07;
+ if (le16_to_cpu(exp_if->if_id) == 0xf)
+ synth = le16_to_cpu(exp_if->variant);
tmp += sizeof(struct bootrec_exp_if);
}
break;
@@ -427,22 +428,13 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
goto err;
}

- switch (priv->rxhw) {
- case 4: /* XBow */
+ priv->rxhw = synth & 0x07;
+ if (priv->rxhw == 4)
p54_init_xbow_synth(dev);
- case 1: /* Indigo? */
- case 2: /* Duette */
- dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz;
- case 3: /* Frisbee */
- case 5: /* Longbow */
+ if (!(synth & 0x40))
dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz;
- break;
- default:
- printk(KERN_ERR "%s: unsupported RF-Chip\n",
- wiphy_name(dev->wiphy));
- err = -EINVAL;
- goto err;
- }
+ if (!(synth & 0x80))
+ dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz;

if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
u8 perm_addr[ETH_ALEN];
--
John W. Linville Linux should be at the core
linville@tuxdriver.com of your literate lifestyle.
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