linux-kernel - Re: usb.c:undefined reference to `qe

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Message-ID: <5d8e3316-54bb-40c4-a8a4-dd1b10d1e1a6@infradead.org>
Date:   Wed, 11 Jan 2023 08:01:47 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Michael Ellerman <mpe@...erman.id.au>,
        kernel test robot <lkp@...el.com>,
        Masahiro Yamada <masahiroy@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Nicolas Schier <nicolas@...sle.eu>,
        Qiang Zhao <qiang.zhao@....com>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        Li Yang <leoyang.li@....com>
Subject: Re: usb.c:undefined reference to `qe_immr'



On 1/10/23 23:39, Michael Ellerman wrote:
> Randy Dunlap <rdunlap@...radead.org> writes:
>> [adding Cc's]
>>
>>
>> On 1/9/23 23:59, kernel test robot wrote:
>>> Hi Masahiro,
>>>
>>> FYI, the error/warning still remains.
>>>
>>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>>> head:   5a41237ad1d4b62008f93163af1d9b1da90729d8
>>> commit: 7b4537199a4a8480b8c3ba37a2d44765ce76cd9b kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS
>>> date:   8 months ago
>>> config: powerpc-randconfig-r026-20230110
>>> compiler: powerpc-linux-gcc (GCC) 12.1.0
>>> reproduce (this is a W=1 build):
>>>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>>         chmod +x ~/bin/make.cross
>>>         # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7b4537199a4a8480b8c3ba37a2d44765ce76cd9b
>>>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>>>         git fetch --no-tags linus master
>>>         git checkout 7b4537199a4a8480b8c3ba37a2d44765ce76cd9b
>>>         # save the config file
>>>         mkdir build_dir && cp config build_dir/.config
>>>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
>>>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash
>>>
>>> If you fix the issue, kindly add following tag where applicable
>>> | Reported-by: kernel test robot <lkp@...el.com>
>>>
>>> All errors (new ones prefixed by >>):
>>>
>>>    powerpc-linux-ld: powerpc-linux-ld: DWARF error: could not find abbrev number 74
>>>    drivers/soc/fsl/qe/usb.o: in function `qe_usb_clock_set':
>>>>> usb.c:(.text+0x1e): undefined reference to `qe_immr'
>>>>> powerpc-linux-ld: usb.c:(.text+0x2a): undefined reference to `qe_immr'
>>>>> powerpc-linux-ld: usb.c:(.text+0xbc): undefined reference to `qe_setbrg'
>>>>> powerpc-linux-ld: usb.c:(.text+0xca): undefined reference to `cmxgcr_lock'
>>>    powerpc-linux-ld: usb.c:(.text+0xce): undefined reference to `cmxgcr_lock'
>>>
>>
>> .config extract:
>>
>> #
>> # NXP/Freescale QorIQ SoC drivers
>> #
>> # CONFIG_QUICC_ENGINE is not set
>> CONFIG_QE_USB=y
>>
>>
>> This is caused by (drivers/soc/fsl/qe/Kconfig):
>>
>> config QE_USB
>> 	bool
>> 	default y if USB_FSL_QE
>> 	help
>> 	  QE USB Controller support
>>
>> which does not depend on QUICC_ENGINE, where the latter build provides
>> the missing symbols.
> 
> So QE_USB should depend on QUICC_ENGINE no?

Yes, that would make sense, but I don't know enough about the
hardware. I.e., could CONFIG_PPC_EP88XC have QE_USB without having
a full QUICC_ENGINE?

thanks.

-- 
~Randy