Vmalloc.h implicit functions

[Valdis Kl=?utf-8?Q?=c4=93?=tnieks]

On Tue, 07 Sep 2021 18:06:26 +0200, Omar Mustafa said:
> It’s the RTL8822BE Bluetooth which I have tried each and every solution online ever existed and failed

Looks like the PCI card variant has been supported for a while:
[/usr/src/linux-next] git blame drivers/net/wireless/realtek/rtlwifi/pci.c | grep RTL8822BE
e298be2a97fda drivers/net/wireless/realtek/rtlwifi/pci.c (Ping-Ke Shih              2017-12-09 11:37:08 -0600   48) 	if (rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) {
89d3e8abcf244 drivers/net/wireless/realtek/rtlwifi/pci.c (Ping-Ke Shih              2017-11-01 10:29:20 -0500  991) 	if (rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) {
57869e4ba77a7 drivers/net/wireless/realtek/rtlwifi/pci.c (Ping-Ke Shih              2017-11-01 10:29:19 -0500 1139) 	else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE)
68929a8380007 drivers/net/wireless/realtek/rtlwifi/pci.c (Ping-Ke Shih              2017-11-01 10:29:21 -0500 1963) 		rtlhal->hw_type = HARDWARE_TYPE_RTL8822BE;
57869e4ba77a7 drivers/net/wireless/realtek/rtlwifi/pci.c (Ping-Ke Shih              2017-11-01 10:29:19 -0500 1996) 	case HARDWARE_TYPE_RTL8822BE:

[/usr/src/linux-next] git describe e298be2a97fda
v4.15-rc1-238-ge298be2a97fd

https://linux-hardware.org/index.php?id=usb:0bda-b023  says
the USB flavor is supported by drivers/bluetooth/btusb.c
with config symbols CONFIG_BT CONFIG_BT_HCIBTUSB/

There's an apparently abandoned github driver: https://github.com/lwfinger/rtl8723au_bt
that hasn't been touched in 7 years, and has a Readme that says:

> In this document, we introduce how to support rtk 8723AE/AU BT driver in Linux system.
> Support kernel version 2.6.32~3.13.0

So for us to help you, you're going to have to be a *lot* more detailed about
what kernel release you're using, what the USB/PCI/whatever device you're
working with, and where you got the driver you're trying to get working.

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