RE: [PATCH v8 2/6] iwlwifi: mei: add the driver to allow cooperation with CSME

Grumbach, Emmanuel
2021-12-01T11:46:16Z

Hi Jiri,

>
> On 12. 11. 21, 7:28, Emmanuel Grumbach wrote:
> > CSME in two words
> > -----------------
> > CSME stands for Converged Security and Management Engine. It is a CPU
> > on the chipset and runs a dedicated firmware.
> > AMT (Active Management Technology) is one of the applications that run
> > on that CPU. AMT allows to control the platform remotely.
> > Here is a partial list of the use cases:
> > * View the screen of the plaform, with keyboard and mouse (KVM)
> > * Attach a remote IDE device
> > * Have a serial console to the device
> > * Query the state of the platform
> > * Reset / shut down / boot the platform
>
> Hi,
>
> this patch causes link failures:
> > MODPOST modules-only.symvers
> > ERROR: modpost: "__SCT__tp_func_iwlmei_sap_data"
> [drivers/net/wireless/intel/iwlwifi/mei/iwlmei.ko] undefined!
> > ERROR: modpost: "__SCT__tp_func_iwlmei_me_msg"
> [drivers/net/wireless/intel/iwlwifi/mei/iwlmei.ko] undefined!
> > ERROR: modpost: "__tracepoint_iwlmei_sap_cmd"
> [drivers/net/wireless/intel/iwlwifi/mei/iwlmei.ko] undefined!
> > ERROR: modpost: "__tracepoint_iwlmei_me_msg"
> [drivers/net/wireless/intel/iwlwifi/mei/iwlmei.ko] undefined!
> > ERROR: modpost: "__SCK__tp_func_iwlmei_me_msg"
> [drivers/net/wireless/intel/iwlwifi/mei/iwlmei.ko] undefined!
> > ERROR: modpost: "__SCK__tp_func_iwlmei_sap_data"
> [drivers/net/wireless/intel/iwlwifi/mei/iwlmei.ko] undefined!
> > ERROR: modpost: "__tracepoint_iwlmei_sap_data"
> [drivers/net/wireless/intel/iwlwifi/mei/iwlmei.ko] undefined!
> > ERROR: modpost: "__SCT__tp_func_iwlmei_sap_cmd"
> [drivers/net/wireless/intel/iwlwifi/mei/iwlmei.ko] undefined!
> > ERROR: modpost: "__SCK__tp_func_iwlmei_sap_cmd"
> [drivers/net/wireless/intel/iwlwifi/mei/iwlmei.ko] undefined!
> > make[1]: *** [../scripts/Makefile.modpost:134: modules-only.symvers]
> Error 1 > make: *** [../Makefile:1904: modules] Error 2
>
> with this config:
> https://raw.githubusercontent.com/openSUSE/kernel-source/linux-
> next/config/x86_64/vanilla
>

Thanks for reporting.
I sent a patch to fix this:
https://patchwork.kernel.org/project/linux-wireless/patch/20211201113411.130409-1-emmanuel.grumbach@intel.com/

Thanks again.