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/rtl8192ce/sw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
index 460dc92..2c3b733 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
@@ -91,9 +91,7 @@
int err;
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
- const struct firmware *firmware;
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
- char *fw_name = NULL;
rtl8192ce_bt_reg_init(hw);
@@ -165,26 +163,20 @@
/* request fw */
if (IS_VENDOR_UMC_A_CUT(rtlhal->version) &&
!IS_92C_SERIAL(rtlhal->version))
- fw_name = "rtlwifi/rtl8192cfwU.bin";
+ rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cfwU.bin";
else if (IS_81xxC_VENDOR_UMC_B_CUT(rtlhal->version))
- fw_name = "rtlwifi/rtl8192cfwU_B.bin";
- else
- fw_name = rtlpriv->cfg->fw_name;
- err = request_firmware(&firmware, fw_name, rtlpriv->io.dev);
+ rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cfwU_B.bin";
+
+ rtlpriv->max_fw_size = 0x4000;
+ pr_info("Using firmware %s\n", rtlpriv->cfg->fw_name);
+ 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 > 0x4000) {
- 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);
return 0;
}