From 7003b078c82d141216deecef4de154711a107aab Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Mon, 17 Dec 2007 15:22:43 -0500 Subject: [PATCH] libertas: use priv->upld_buf for command responses If we don't scribble over the command we sent, then we can retry it when the firmware responds with 0x0004 (which means -EAGAIN). Signed-off-by: David Woodhouse Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/cmdresp.c | 2 +- drivers/net/wireless/libertas/if_cs.c | 10 +--------- drivers/net/wireless/libertas/if_sdio.c | 8 +------- drivers/net/wireless/libertas/if_usb.c | 14 +------------- 4 files changed, 4 insertions(+), 30 deletions(-) diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c index d305e982c5..4d384612af 100644 --- a/drivers/net/wireless/libertas/cmdresp.c +++ b/drivers/net/wireless/libertas/cmdresp.c @@ -639,7 +639,7 @@ int lbs_process_rx_command(struct lbs_private *priv) goto done; } - resp = priv->cur_cmd->cmdbuf; + resp = (void *)priv->upld_buf; curcmd = le16_to_cpu(resp->command); diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 58143637c7..4b5ab9a6b9 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -647,7 +647,6 @@ static int if_cs_get_int_status(struct lbs_private *priv, u8 *ireg) struct if_cs_card *card = (struct if_cs_card *)priv->card; int ret = 0; u16 int_cause; - u8 *cmdbuf; *ireg = 0; lbs_deb_enter(LBS_DEB_CS); @@ -679,14 +678,7 @@ sbi_get_int_status_exit: /* Card has a command result for us */ if (*ireg & IF_CS_C_S_CMD_UPLD_RDY) { spin_lock(&priv->driver_lock); - if (!priv->cur_cmd) { - cmdbuf = priv->upld_buf; - priv->hisregcpy &= ~IF_CS_C_S_RX_UPLD_RDY; - } else { - cmdbuf = (u8 *) priv->cur_cmd->cmdbuf; - } - - ret = if_cs_receive_cmdres(priv, cmdbuf, &priv->upld_len); + ret = if_cs_receive_cmdres(priv, priv->upld_buf, &priv->upld_len); spin_unlock(&priv->driver_lock); if (ret < 0) lbs_pr_err("could not receive cmd from card\n"); diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c index 9225546b9d..eed73204bc 100644 --- a/drivers/net/wireless/libertas/if_sdio.c +++ b/drivers/net/wireless/libertas/if_sdio.c @@ -136,12 +136,6 @@ static int if_sdio_handle_cmd(struct if_sdio_card *card, spin_lock_irqsave(&card->priv->driver_lock, flags); - if (!card->priv->cur_cmd) { - lbs_deb_sdio("discarding spurious response\n"); - ret = 0; - goto out; - } - if (size > LBS_CMD_BUFFER_SIZE) { lbs_deb_sdio("response packet too large (%d bytes)\n", (int)size); @@ -149,7 +143,7 @@ static int if_sdio_handle_cmd(struct if_sdio_card *card, goto out; } - memcpy(card->priv->cur_cmd->cmdbuf, buffer, size); + memcpy(card->priv->upld_buf, buffer, size); card->priv->upld_len = size; card->int_cause |= MRVDRV_CMD_UPLD_RDY; diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c index 3931fe6267..7db8e6c35d 100644 --- a/drivers/net/wireless/libertas/if_usb.c +++ b/drivers/net/wireless/libertas/if_usb.c @@ -589,8 +589,6 @@ static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff, struct if_usb_card *cardp, struct lbs_private *priv) { - uint8_t *cmdbuf; - if (recvlength > LBS_CMD_BUFFER_SIZE) { lbs_deb_usbd(&cardp->udev->dev, "The receive buffer is too large\n"); @@ -602,19 +600,9 @@ static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff, BUG(); spin_lock(&priv->driver_lock); - /* take care of cur_cmd = NULL case by reading the - * data to clear the interrupt */ - if (!priv->cur_cmd) { - lbs_deb_hex(LBS_DEB_HOST, "Unsolicited CMD_RESP", - (void *) recvbuff + MESSAGE_HEADER_LEN, priv->upld_len); - cmdbuf = priv->upld_buf; - priv->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY; - } else - cmdbuf = (uint8_t *) priv->cur_cmd->cmdbuf; - cardp->usb_int_cause |= MRVDRV_CMD_UPLD_RDY; priv->upld_len = (recvlength - MESSAGE_HEADER_LEN); - memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN, priv->upld_len); + memcpy(priv->upld_buf, recvbuff + MESSAGE_HEADER_LEN, priv->upld_len); kfree_skb(skb); lbs_interrupt(priv); -- 2.39.5