rtlwifi: Convert to asynchronous firmware load
This patch addresses a kernel bugzilla report and two recent mail threads.
The kernel bugzilla report is https://bugzilla.kernel.org/show_bug.cgi?id=42632,
which reports a udev timeout on boot.
The first mail thread, which was on LKML (http://lkml.indiana.edu/hypermail/
linux/kernel/1112.3/00965.html) was for a WARNING that occurs after a
suspend/resume cycle for rtl8192cu.
The scond mail thread (http://marc.info/?l=linux-wireless&m=132655490826766&w=2)
concerned changes in udev that break drivers that delay while firmware is loaded
on modprobe.
This patch converts all rtlwifi-based drivers to use the asynchronous firmware
loading mechanism. Drivers rtl8192ce, rtl8192cu and rtl8192de share a common
callback routine. Driver rtl8192se needs different handling of the firmware,
thus it has its own code.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/sw.c b/drivers/net/wireless/rtlwifi/rtl8192de/sw.c
index bf625f9..4898c50 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/sw.c
@@ -91,7 +91,6 @@
u8 tid;
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
- const struct firmware *firmware;
static int header_print;
rtlpriv->dm.dm_initialgain_enable = true;
@@ -167,6 +166,15 @@
else if (rtlpriv->psc.reg_fwctrl_lps == 3)
rtlpriv->psc.fwctrl_psmode = FW_PS_DTIM_MODE;
+ /* for early mode */
+ rtlpriv->rtlhal.earlymode_enable = true;
+ for (tid = 0; tid < 8; tid++)
+ skb_queue_head_init(&rtlpriv->mac80211.skb_waitq[tid]);
+
+ /* Only load firmware for first MAC */
+ if (header_print)
+ return 0;
+
/* for firmware buf */
rtlpriv->rtlhal.pfirmware = vzalloc(0x8000);
if (!rtlpriv->rtlhal.pfirmware) {
@@ -175,33 +183,21 @@
return 1;
}
- if (!header_print) {
- pr_info("Driver for Realtek RTL8192DE WLAN interface\n");
- pr_info("Loading firmware file %s\n", rtlpriv->cfg->fw_name);
- header_print++;
- }
+ rtlpriv->max_fw_size = 0x8000;
+ pr_info("Driver for Realtek RTL8192DE WLAN interface\n");
+ pr_info("Loading firmware file %s\n", rtlpriv->cfg->fw_name);
+ header_print++;
+
/* request fw */
- err = request_firmware(&firmware, rtlpriv->cfg->fw_name,
- rtlpriv->io.dev);
+ err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name,
+ rtlpriv->io.dev, GFP_KERNEL, hw,
+ rtl_fw_cb);
if (err) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
"Failed to request firmware!\n");
return 1;
}
- if (firmware->size > 0x8000) {
- RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
- "Firmware is too big!\n");
- release_firmware(firmware);
- return 1;
- }
- memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size);
- rtlpriv->rtlhal.fwsize = firmware->size;
- release_firmware(firmware);
- /* for early mode */
- rtlpriv->rtlhal.earlymode_enable = true;
- for (tid = 0; tid < 8; tid++)
- skb_queue_head_init(&rtlpriv->mac80211.skb_waitq[tid]);
return 0;
}