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path: root/drivers/net/wireless/intersil/orinoco
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Diffstat (limited to 'drivers/net/wireless/intersil/orinoco')
-rw-r--r--drivers/net/wireless/intersil/orinoco/hermes.c1
-rw-r--r--drivers/net/wireless/intersil/orinoco/hermes.h15
-rw-r--r--drivers/net/wireless/intersil/orinoco/hw.c32
-rw-r--r--drivers/net/wireless/intersil/orinoco/orinoco_usb.c168
4 files changed, 138 insertions, 78 deletions
diff --git a/drivers/net/wireless/intersil/orinoco/hermes.c b/drivers/net/wireless/intersil/orinoco/hermes.c
index 43790fbea0e0..6d4b7f64efcf 100644
--- a/drivers/net/wireless/intersil/orinoco/hermes.c
+++ b/drivers/net/wireless/intersil/orinoco/hermes.c
@@ -763,6 +763,7 @@ static const struct hermes_ops hermes_ops_local = {
.init_cmd_wait = hermes_doicmd_wait,
.allocate = hermes_allocate,
.read_ltv = hermes_read_ltv,
+ .read_ltv_pr = hermes_read_ltv,
.write_ltv = hermes_write_ltv,
.bap_pread = hermes_bap_pread,
.bap_pwrite = hermes_bap_pwrite,
diff --git a/drivers/net/wireless/intersil/orinoco/hermes.h b/drivers/net/wireless/intersil/orinoco/hermes.h
index 9f668185b7d2..3dc561a5cb7a 100644
--- a/drivers/net/wireless/intersil/orinoco/hermes.h
+++ b/drivers/net/wireless/intersil/orinoco/hermes.h
@@ -386,6 +386,8 @@ struct hermes_ops {
int (*allocate)(struct hermes *hw, u16 size, u16 *fid);
int (*read_ltv)(struct hermes *hw, int bap, u16 rid, unsigned buflen,
u16 *length, void *buf);
+ int (*read_ltv_pr)(struct hermes *hw, int bap, u16 rid,
+ unsigned buflen, u16 *length, void *buf);
int (*write_ltv)(struct hermes *hw, int bap, u16 rid,
u16 length, const void *value);
int (*bap_pread)(struct hermes *hw, int bap, void *buf, int len,
@@ -494,6 +496,8 @@ static inline void hermes_clear_words(struct hermes *hw, int off,
#define HERMES_READ_RECORD(hw, bap, rid, buf) \
(hw->ops->read_ltv((hw), (bap), (rid), sizeof(*buf), NULL, (buf)))
+#define HERMES_READ_RECORD_PR(hw, bap, rid, buf) \
+ (hw->ops->read_ltv_pr((hw), (bap), (rid), sizeof(*buf), NULL, (buf)))
#define HERMES_WRITE_RECORD(hw, bap, rid, buf) \
(hw->ops->write_ltv((hw), (bap), (rid), \
HERMES_BYTES_TO_RECLEN(sizeof(*buf)), (buf)))
@@ -509,6 +513,17 @@ static inline int hermes_read_wordrec(struct hermes *hw, int bap, u16 rid,
return err;
}
+static inline int hermes_read_wordrec_pr(struct hermes *hw, int bap, u16 rid,
+ u16 *word)
+{
+ __le16 rec;
+ int err;
+
+ err = HERMES_READ_RECORD_PR(hw, bap, rid, &rec);
+ *word = le16_to_cpu(rec);
+ return err;
+}
+
static inline int hermes_write_wordrec(struct hermes *hw, int bap, u16 rid,
u16 word)
{
diff --git a/drivers/net/wireless/intersil/orinoco/hw.c b/drivers/net/wireless/intersil/orinoco/hw.c
index 61af5a28f269..2c7adb4be100 100644
--- a/drivers/net/wireless/intersil/orinoco/hw.c
+++ b/drivers/net/wireless/intersil/orinoco/hw.c
@@ -78,7 +78,7 @@ int determine_fw_capabilities(struct orinoco_private *priv,
char tmp[SYMBOL_MAX_VER_LEN + 1] __attribute__((aligned(2)));
/* Get the hardware version */
- err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
+ err = HERMES_READ_RECORD_PR(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
if (err) {
dev_err(dev, "Cannot read hardware identity: error %d\n",
err);
@@ -101,7 +101,7 @@ int determine_fw_capabilities(struct orinoco_private *priv,
priv->firmware_type = determine_firmware_type(&nic_id);
/* Get the firmware version */
- err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
+ err = HERMES_READ_RECORD_PR(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
if (err) {
dev_err(dev, "Cannot read station identity: error %d\n",
err);
@@ -177,7 +177,7 @@ int determine_fw_capabilities(struct orinoco_private *priv,
/* 3Com MAC : 00:50:DA:* */
memset(tmp, 0, sizeof(tmp));
/* Get the Symbol firmware version */
- err = hw->ops->read_ltv(hw, USER_BAP,
+ err = hw->ops->read_ltv_pr(hw, USER_BAP,
HERMES_RID_SECONDARYVERSION_SYMBOL,
SYMBOL_MAX_VER_LEN, NULL, &tmp);
if (err) {
@@ -286,7 +286,7 @@ int orinoco_hw_read_card_settings(struct orinoco_private *priv, u8 *dev_addr)
u16 reclen;
/* Get the MAC address */
- err = hw->ops->read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
+ err = hw->ops->read_ltv_pr(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
ETH_ALEN, NULL, dev_addr);
if (err) {
dev_warn(dev, "Failed to read MAC address!\n");
@@ -296,7 +296,7 @@ int orinoco_hw_read_card_settings(struct orinoco_private *priv, u8 *dev_addr)
dev_dbg(dev, "MAC address %pM\n", dev_addr);
/* Get the station name */
- err = hw->ops->read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
+ err = hw->ops->read_ltv_pr(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
sizeof(nickbuf), &reclen, &nickbuf);
if (err) {
dev_err(dev, "failed to read station name\n");
@@ -312,7 +312,7 @@ int orinoco_hw_read_card_settings(struct orinoco_private *priv, u8 *dev_addr)
dev_dbg(dev, "Station name \"%s\"\n", priv->nick);
/* Get allowed channels */
- err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
+ err = hermes_read_wordrec_pr(hw, USER_BAP, HERMES_RID_CHANNELLIST,
&priv->channel_mask);
if (err) {
dev_err(dev, "Failed to read channel list!\n");
@@ -320,13 +320,13 @@ int orinoco_hw_read_card_settings(struct orinoco_private *priv, u8 *dev_addr)
}
/* Get initial AP density */
- err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
+ err = hermes_read_wordrec_pr(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
&priv->ap_density);
if (err || priv->ap_density < 1 || priv->ap_density > 3)
priv->has_sensitivity = 0;
/* Get initial RTS threshold */
- err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
+ err = hermes_read_wordrec_pr(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
&priv->rts_thresh);
if (err) {
dev_err(dev, "Failed to read RTS threshold!\n");
@@ -335,11 +335,11 @@ int orinoco_hw_read_card_settings(struct orinoco_private *priv, u8 *dev_addr)
/* Get initial fragmentation settings */
if (priv->has_mwo)
- err = hermes_read_wordrec(hw, USER_BAP,
+ err = hermes_read_wordrec_pr(hw, USER_BAP,
HERMES_RID_CNFMWOROBUST_AGERE,
&priv->mwo_robust);
else
- err = hermes_read_wordrec(hw, USER_BAP,
+ err = hermes_read_wordrec_pr(hw, USER_BAP,
HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
&priv->frag_thresh);
if (err) {
@@ -351,7 +351,7 @@ int orinoco_hw_read_card_settings(struct orinoco_private *priv, u8 *dev_addr)
if (priv->has_pm) {
priv->pm_on = 0;
priv->pm_mcast = 1;
- err = hermes_read_wordrec(hw, USER_BAP,
+ err = hermes_read_wordrec_pr(hw, USER_BAP,
HERMES_RID_CNFMAXSLEEPDURATION,
&priv->pm_period);
if (err) {
@@ -359,7 +359,7 @@ int orinoco_hw_read_card_settings(struct orinoco_private *priv, u8 *dev_addr)
"period!\n");
goto out;
}
- err = hermes_read_wordrec(hw, USER_BAP,
+ err = hermes_read_wordrec_pr(hw, USER_BAP,
HERMES_RID_CNFPMHOLDOVERDURATION,
&priv->pm_timeout);
if (err) {
@@ -371,7 +371,7 @@ int orinoco_hw_read_card_settings(struct orinoco_private *priv, u8 *dev_addr)
/* Preamble setup */
if (priv->has_preamble) {
- err = hermes_read_wordrec(hw, USER_BAP,
+ err = hermes_read_wordrec_pr(hw, USER_BAP,
HERMES_RID_CNFPREAMBLE_SYMBOL,
&priv->preamble);
if (err) {
@@ -381,21 +381,21 @@ int orinoco_hw_read_card_settings(struct orinoco_private *priv, u8 *dev_addr)
}
/* Retry settings */
- err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
+ err = hermes_read_wordrec_pr(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
&priv->short_retry_limit);
if (err) {
dev_err(dev, "Failed to read short retry limit\n");
goto out;
}
- err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
+ err = hermes_read_wordrec_pr(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
&priv->long_retry_limit);
if (err) {
dev_err(dev, "Failed to read long retry limit\n");
goto out;
}
- err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
+ err = hermes_read_wordrec_pr(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
&priv->retry_lifetime);
if (err) {
dev_err(dev, "Failed to read max retry lifetime\n");
diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
index b849d27bd741..dd31929261ab 100644
--- a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
+++ b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
@@ -665,26 +665,43 @@ static void ezusb_request_in_callback(struct ezusb_priv *upriv,
} /* switch */
}
+typedef void (*ezusb_ctx_wait)(struct ezusb_priv *, struct request_context *);
-static void ezusb_req_ctx_wait(struct ezusb_priv *upriv,
- struct request_context *ctx)
+static void ezusb_req_ctx_wait_compl(struct ezusb_priv *upriv,
+ struct request_context *ctx)
{
switch (ctx->state) {
case EZUSB_CTX_QUEUED:
case EZUSB_CTX_REQ_SUBMITTED:
case EZUSB_CTX_REQ_COMPLETE:
case EZUSB_CTX_RESP_RECEIVED:
- if (in_softirq()) {
- /* If we get called from a timer, timeout timers don't
- * get the chance to run themselves. So we make sure
- * that we don't sleep for ever */
- int msecs = DEF_TIMEOUT * (1000 / HZ);
-
- while (!try_wait_for_completion(&ctx->done) && msecs--)
- udelay(1000);
- } else {
- wait_for_completion(&ctx->done);
- }
+ wait_for_completion(&ctx->done);
+ break;
+ default:
+ /* Done or failed - nothing to wait for */
+ break;
+ }
+}
+
+static void ezusb_req_ctx_wait_poll(struct ezusb_priv *upriv,
+ struct request_context *ctx)
+{
+ int msecs;
+
+ switch (ctx->state) {
+ case EZUSB_CTX_QUEUED:
+ case EZUSB_CTX_REQ_SUBMITTED:
+ case EZUSB_CTX_REQ_COMPLETE:
+ case EZUSB_CTX_RESP_RECEIVED:
+ /* If we get called from a timer or with our lock acquired, then
+ * we can't wait for the completion and have to poll. This won't
+ * happen if the USB controller completes the URB requests in
+ * BH.
+ */
+ msecs = DEF_TIMEOUT * (1000 / HZ);
+
+ while (!try_wait_for_completion(&ctx->done) && msecs--)
+ udelay(1000);
break;
default:
/* Done or failed - nothing to wait for */
@@ -692,6 +709,12 @@ static void ezusb_req_ctx_wait(struct ezusb_priv *upriv,
}
}
+static void ezusb_req_ctx_wait_skip(struct ezusb_priv *upriv,
+ struct request_context *ctx)
+{
+ WARN(1, "Shouldn't be invoked for in_rid\n");
+}
+
static inline u16 build_crc(struct ezusb_packet *data)
{
u16 crc = 0;
@@ -853,14 +876,13 @@ static int ezusb_firmware_download(struct ezusb_priv *upriv,
static int ezusb_access_ltv(struct ezusb_priv *upriv,
struct request_context *ctx,
u16 length, const void *data, u16 frame_type,
- void *ans_buff, unsigned ans_size, u16 *ans_length)
+ void *ans_buff, unsigned ans_size, u16 *ans_length,
+ ezusb_ctx_wait ezusb_ctx_wait_func)
{
int req_size;
int retval = 0;
enum ezusb_state state;
- BUG_ON(in_irq());
-
if (!upriv->udev) {
retval = -ENODEV;
goto exit;
@@ -885,7 +907,7 @@ static int ezusb_access_ltv(struct ezusb_priv *upriv,
spin_unlock_bh(&upriv->reply_count_lock);
if (ctx->in_rid)
- ezusb_req_ctx_wait(upriv, ctx);
+ ezusb_ctx_wait_func(upriv, ctx);
state = ctx->state;
switch (state) {
@@ -946,8 +968,9 @@ static int ezusb_access_ltv(struct ezusb_priv *upriv,
return retval;
}
-static int ezusb_write_ltv(struct hermes *hw, int bap, u16 rid,
- u16 length, const void *data)
+static int __ezusb_write_ltv(struct hermes *hw, int bap, u16 rid,
+ u16 length, const void *data,
+ ezusb_ctx_wait ezusb_ctx_wait_func)
{
struct ezusb_priv *upriv = hw->priv;
u16 frame_type;
@@ -973,11 +996,20 @@ static int ezusb_write_ltv(struct hermes *hw, int bap, u16 rid,
frame_type = EZUSB_FRAME_CONTROL;
return ezusb_access_ltv(upriv, ctx, length, data, frame_type,
- NULL, 0, NULL);
+ NULL, 0, NULL, ezusb_ctx_wait_func);
}
-static int ezusb_read_ltv(struct hermes *hw, int bap, u16 rid,
- unsigned bufsize, u16 *length, void *buf)
+static int ezusb_write_ltv(struct hermes *hw, int bap, u16 rid,
+ u16 length, const void *data)
+{
+ return __ezusb_write_ltv(hw, bap, rid, length, data,
+ ezusb_req_ctx_wait_poll);
+}
+
+static int __ezusb_read_ltv(struct hermes *hw, int bap, u16 rid,
+ unsigned bufsize, u16 *length, void *buf,
+ ezusb_ctx_wait ezusb_ctx_wait_func)
+
{
struct ezusb_priv *upriv = hw->priv;
struct request_context *ctx;
@@ -990,34 +1022,33 @@ static int ezusb_read_ltv(struct hermes *hw, int bap, u16 rid,
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, 0, NULL, EZUSB_FRAME_CONTROL,
- buf, bufsize, length);
+ buf, bufsize, length, ezusb_req_ctx_wait_poll);
}
-static int ezusb_doicmd_wait(struct hermes *hw, u16 cmd, u16 parm0, u16 parm1,
- u16 parm2, struct hermes_response *resp)
+static int ezusb_read_ltv(struct hermes *hw, int bap, u16 rid,
+ unsigned bufsize, u16 *length, void *buf)
{
- struct ezusb_priv *upriv = hw->priv;
- struct request_context *ctx;
+ return __ezusb_read_ltv(hw, bap, rid, bufsize, length, buf,
+ ezusb_req_ctx_wait_poll);
+}
- __le16 data[4] = {
- cpu_to_le16(cmd),
- cpu_to_le16(parm0),
- cpu_to_le16(parm1),
- cpu_to_le16(parm2),
- };
- netdev_dbg(upriv->dev,
- "0x%04X, parm0 0x%04X, parm1 0x%04X, parm2 0x%04X\n", cmd,
- parm0, parm1, parm2);
- ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_DOCMD, EZUSB_RID_ACK);
- if (!ctx)
- return -ENOMEM;
+static int ezusb_read_ltv_preempt(struct hermes *hw, int bap, u16 rid,
+ unsigned bufsize, u16 *length, void *buf)
+{
+ return __ezusb_read_ltv(hw, bap, rid, bufsize, length, buf,
+ ezusb_req_ctx_wait_compl);
+}
- return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+static int ezusb_doicmd_wait(struct hermes *hw, u16 cmd, u16 parm0, u16 parm1,
+ u16 parm2, struct hermes_response *resp)
+{
+ WARN_ON_ONCE(1);
+ return -EINVAL;
}
-static int ezusb_docmd_wait(struct hermes *hw, u16 cmd, u16 parm0,
- struct hermes_response *resp)
+static int __ezusb_docmd_wait(struct hermes *hw, u16 cmd, u16 parm0,
+ struct hermes_response *resp,
+ ezusb_ctx_wait ezusb_ctx_wait_func)
{
struct ezusb_priv *upriv = hw->priv;
struct request_context *ctx;
@@ -1034,7 +1065,14 @@ static int ezusb_docmd_wait(struct hermes *hw, u16 cmd, u16 parm0,
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_ctx_wait_func);
+}
+
+static int ezusb_docmd_wait(struct hermes *hw, u16 cmd, u16 parm0,
+ struct hermes_response *resp)
+{
+ return __ezusb_docmd_wait(hw, cmd, parm0, resp, ezusb_req_ctx_wait_poll);
}
static int ezusb_bap_pread(struct hermes *hw, int bap,
@@ -1092,7 +1130,7 @@ static int ezusb_read_pda(struct hermes *hw, __le16 *pda,
return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
EZUSB_FRAME_CONTROL, &pda[2], pda_len - 4,
- NULL);
+ NULL, ezusb_req_ctx_wait_compl);
}
static int ezusb_program_init(struct hermes *hw, u32 entry_point)
@@ -1106,7 +1144,8 @@ static int ezusb_program_init(struct hermes *hw, u32 entry_point)
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_req_ctx_wait_compl);
}
static int ezusb_program_end(struct hermes *hw)
@@ -1119,7 +1158,8 @@ static int ezusb_program_end(struct hermes *hw)
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, 0, NULL,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_req_ctx_wait_compl);
}
static int ezusb_program_bytes(struct hermes *hw, const char *buf,
@@ -1135,7 +1175,8 @@ static int ezusb_program_bytes(struct hermes *hw, const char *buf,
return -ENOMEM;
err = ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_req_ctx_wait_compl);
if (err)
return err;
@@ -1144,7 +1185,8 @@ static int ezusb_program_bytes(struct hermes *hw, const char *buf,
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, len, buf,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_req_ctx_wait_compl);
}
static int ezusb_program(struct hermes *hw, const char *buf,
@@ -1223,13 +1265,6 @@ static netdev_tx_t ezusb_xmit(struct sk_buff *skb, struct net_device *dev)
if (skb->len < ETH_HLEN)
goto drop;
- ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_TX, 0);
- if (!ctx)
- goto busy;
-
- memset(ctx->buf, 0, BULK_BUF_SIZE);
- buf = ctx->buf->data;
-
tx_control = 0;
err = orinoco_process_xmit_skb(skb, dev, priv, &tx_control,
@@ -1237,6 +1272,13 @@ static netdev_tx_t ezusb_xmit(struct sk_buff *skb, struct net_device *dev)
if (err)
goto drop;
+ ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_TX, 0);
+ if (!ctx)
+ goto drop;
+
+ memset(ctx->buf, 0, BULK_BUF_SIZE);
+ buf = ctx->buf->data;
+
{
__le16 *tx_cntl = (__le16 *)buf;
*tx_cntl = cpu_to_le16(tx_control);
@@ -1264,7 +1306,8 @@ static netdev_tx_t ezusb_xmit(struct sk_buff *skb, struct net_device *dev)
tx_size = ALIGN(buf - ctx->buf->data, 2);
err = ezusb_access_ltv(upriv, ctx, tx_size, NULL,
- EZUSB_FRAME_DATA, NULL, 0, NULL);
+ EZUSB_FRAME_DATA, NULL, 0, NULL,
+ ezusb_req_ctx_wait_skip);
if (err) {
netif_start_queue(dev);
@@ -1349,7 +1392,6 @@ static int ezusb_init(struct hermes *hw)
struct ezusb_priv *upriv = hw->priv;
int retval;
- BUG_ON(in_interrupt());
if (!upriv)
return -EINVAL;
@@ -1362,14 +1404,16 @@ static int ezusb_init(struct hermes *hw)
usb_kill_urb(upriv->read_urb);
ezusb_submit_in_urb(upriv);
- retval = ezusb_write_ltv(hw, 0, EZUSB_RID_INIT1,
- HERMES_BYTES_TO_RECLEN(2), "\x10\x00");
+ retval = __ezusb_write_ltv(hw, 0, EZUSB_RID_INIT1,
+ HERMES_BYTES_TO_RECLEN(2), "\x10\x00",
+ ezusb_req_ctx_wait_compl);
if (retval < 0) {
printk(KERN_ERR PFX "EZUSB_RID_INIT1 error %d\n", retval);
return retval;
}
- retval = ezusb_docmd_wait(hw, HERMES_CMD_INIT, 0, NULL);
+ retval = __ezusb_docmd_wait(hw, HERMES_CMD_INIT, 0, NULL,
+ ezusb_req_ctx_wait_compl);
if (retval < 0) {
printk(KERN_ERR PFX "HERMES_CMD_INIT error %d\n", retval);
return retval;
@@ -1448,7 +1492,6 @@ static inline void ezusb_delete(struct ezusb_priv *upriv)
struct list_head *tmp_item;
unsigned long flags;
- BUG_ON(in_interrupt());
BUG_ON(!upriv);
mutex_lock(&upriv->mtx);
@@ -1533,6 +1576,7 @@ static const struct hermes_ops ezusb_ops = {
.init_cmd_wait = ezusb_doicmd_wait,
.allocate = ezusb_allocate,
.read_ltv = ezusb_read_ltv,
+ .read_ltv_pr = ezusb_read_ltv_preempt,
.write_ltv = ezusb_write_ltv,
.bap_pread = ezusb_bap_pread,
.read_pda = ezusb_read_pda,
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