netdev - Re: [Intel-wired-lan] [tnguy-next-queue:dev-queue] BUILD REGRESSION a6c7254e995a80be8c3239fb631d9d65c9e75248

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Message-ID: <38605896-5268-4f19-9835-77a4c3f07b94@intel.com>
Date: Mon, 15 Sep 2025 14:51:20 +0200
From: Przemek Kitszel <przemyslaw.kitszel@...el.com>
To: Breno Leitao <leitao@...ian.org>, <anthony.l.nguyen@...el.com>, "Michal
 Swiatkowski" <michal.swiatkowski@...ux.intel.com>
CC: Intel Wired LAN <intel-wired-lan@...ts.osuosl.org>,
	<netdev@...r.kernel.org>, kernel test robot <lkp@...el.com>
Subject: Re: [Intel-wired-lan] [tnguy-next-queue:dev-queue] BUILD REGRESSION
 a6c7254e995a80be8c3239fb631d9d65c9e75248

On 9/15/25 12:14, Breno Leitao wrote:
> On Sun, Sep 14, 2025 at 06:05:17AM +0800, kernel test robot wrote:
>> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue.git dev-queue
>> branch HEAD: a6c7254e995a80be8c3239fb631d9d65c9e75248  idpf: enable XSk features and ndo_xsk_wakeup
>>
>> Error/Warning ids grouped by kconfigs:
>>
>> recent_errors
>> `-- loongarch-loongson3_defconfig
>>      |-- ld.lld:error:undefined-symbol:libie_fwlog_deinit
>>      |-- ld.lld:error:undefined-symbol:libie_fwlog_init
>>      `-- ld.lld:error:undefined-symbol:libie_get_fwlog_data
> 
> I am having a similar issue on net-next, where the kernel is failing to
> compile due to the undefined symbols above.
> 
> This happens when CONFIG_ICE is set.
> 

thank you for a human report!

I were analyzing this in the past, (after all fixes by Michal), and
code looked fine, despite lkp complains.

Now, when an actual problem reproduces, I tried it too, and indeed there
was problem - but, it was not a full build (I made a full build just
before fwlog PR, then just added the patches)

during my attempts at understanding what happens, I have fixed the
problem on my machine, so not sure what was needed.

I have moved the below line prior to #includes in fwlog.c:
  #define DEFAULT_SYMBOL_NAMESPACE        "LIBIE_FWLOG"

that itself didn't helped, and with that reverted the fwlog.o an .ko
files are still building

I have invoked
make nsdeps # in the root of the tree, interrupted in a few minutes
then later:
make M=drivers/net/ethernet/intel/libie -j nsdeps
what got my attention as the very first time that I got fwlog.o

sorry, I have no time for proper digging if there is some incremental
build problem (which I have no idea to classify as a "wrong build-user
operations" vs "buildsystem issue"), at least today