Error building on raspbian

[avisiedo]

Details of the system:

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Raspbian
Description:	Raspbian GNU/Linux 9.4 (stretch)
Release:	9.4
Codename:	stretch
$ uname -a
Linux nikola-tesla 4.14.71-v7+ #1145 SMP Fri Sep 21 15:38:35 BST 2018 armv7l GNU/Linux

Error when running make:

$ make
make -C /lib/modules/4.14.71-v7+/build M=/home/avisiedo/rtl8192su/rtlwifi CONFIG_RTL_CARDS=y CONFIG_RTLWIFI=m CONFIG_RTLWIFI_DEBUG=y CONFIG_RTLWIFI_DEBUGFS=y CONFIG_RTLWIFI_USB=m CONFIG_RTLWIFI_PCI=m CONFIG_RTL8192SU=m CONFIG_RTL8192SE=m CONFIG_RTL8192S_COMMON=m CONFIG_RTL8192CU=n CONFIG_RTL8192DE=n CONFIG_RTL8192CE=n CONFIG_RTL8192C_COMMON=n CONFIG_RTL8723AE=n CONFIG_RTL8188EE=n  EXTRA_CFLAGS="-DDEBUG -DCONFIG_RTLWIFI_DEBUGFS=m"
make[1]: Entering directory '/usr/src/linux-headers-4.14.71-v7+'
  AR      /home/avisiedo/rtl8192su/rtlwifi/built-in.o
  CC [M]  /home/avisiedo/rtl8192su/rtlwifi/base.o
  CC [M]  /home/avisiedo/rtl8192su/rtlwifi/cam.o
  CC [M]  /home/avisiedo/rtl8192su/rtlwifi/core.o
  CC [M]  /home/avisiedo/rtl8192su/rtlwifi/debug.o
  CC [M]  /home/avisiedo/rtl8192su/rtlwifi/efuse.o
  CC [M]  /home/avisiedo/rtl8192su/rtlwifi/ps.o
  CC [M]  /home/avisiedo/rtl8192su/rtlwifi/rc.o
  CC [M]  /home/avisiedo/rtl8192su/rtlwifi/regd.o
  CC [M]  /home/avisiedo/rtl8192su/rtlwifi/stats.o
  LD [M]  /home/avisiedo/rtl8192su/rtlwifi/rtlwifi.o
  CC [M]  /home/avisiedo/rtl8192su/rtlwifi/pci.o
/home/avisiedo/rtl8192su/rtlwifi/pci.c: In function ‘rtl_pci_parse_configuration’:
/home/avisiedo/rtl8192su/rtlwifi/pci.c:424:2: error: implicit declaration of function ‘pcie_capability_read_word’ [-Werror=implicit-function-declaration]
  pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &linkctrl_reg);
  ^~~~~~~~~~~~~~~~~~~~~~~~~
/home/avisiedo/rtl8192su/rtlwifi/pci.c: In function ‘rtl_pci_intr_mode_msi’:
/home/avisiedo/rtl8192su/rtlwifi/pci.c:2088:8: error: implicit declaration of function ‘pci_enable_msi’ [-Werror=implicit-function-declaration]
  ret = pci_enable_msi(rtlpci->pdev);
        ^~~~~~~~~~~~~~
/home/avisiedo/rtl8192su/rtlwifi/pci.c:2095:3: error: implicit declaration of function ‘pci_disable_msi’ [-Werror=implicit-function-declaration]
   pci_disable_msi(rtlpci->pdev);
   ^~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
scripts/Makefile.build:328: recipe for target '/home/avisiedo/rtl8192su/rtlwifi/pci.o' failed
make[2]: *** [/home/avisiedo/rtl8192su/rtlwifi/pci.o] Error 1
Makefile:1527: recipe for target '_module_/home/avisiedo/rtl8192su/rtlwifi' failed
make[1]: *** [_module_/home/avisiedo/rtl8192su/rtlwifi] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.14.71-v7+'
Makefile:22: recipe for target 'all' failed
make: *** [all] Error 2

[avisiedo]

I have found the solution here:

https://github.com/lwfinger/rtlwifi_new/issues/247#issuecomment-397819643

And launching the build by hand in this way:

$ make -C /lib/modules/4.14.71-v7+/build M=/home/avisiedo/rtl8192su/rtlwifi CONFIG_RTL_CARDS=y CONFIG_RTLWIFI=m CONFIG_RTLWIFI_DEBUG=y CONFIG_RTLWIFI_DEBUGFS=y CONFIG_RTLWIFI_USB=m CONFIG_RTLWIFI_PCI=n CONFIG_RTL8192SU=m CONFIG_RTL8192SE=n CONFIG_RTL8192S_COMMON=m CONFIG_RTL8192CU=n CONFIG_RTL8192DE=n CONFIG_RTL8192CE=n CONFIG_RTL8192C_COMMON=n CONFIG_RTL8723AE=n CONFIG_RTL8188EE=n  EXTRA_CFLAGS="-DDEBUG -DCONFIG_RTLWIFI_DEBUGFS=m"

Setting:

• CONFIG_RTLWIFI_PCI=n