Re: [LKP] Re: [PATCH v3 1/2] modpost: rework and consolidate logging interface

From: Rong Chen
Date: Wed Mar 11 2020 - 20:51:09 EST




On 3/11/20 9:00 AM, Masahiro Yamada wrote:
On Wed, Mar 11, 2020 at 12:56 AM Philip Li <philip.li@xxxxxxxxx> wrote:
On Tue, Mar 10, 2020 at 12:32:00PM +0100, Jessica Yu wrote:
+++ Masahiro Yamada [09/03/20 20:03 +0900]:
On Mon, Mar 9, 2020 at 7:58 PM Jessica Yu <jeyu@xxxxxxxxxx> wrote:
+++ Masahiro Yamada [09/03/20 19:49 +0900]:
On Mon, Mar 9, 2020 at 7:39 PM Jessica Yu <jeyu@xxxxxxxxxx> wrote:
Ah, sorry, I mean the kbuild 0-day bot errors. I am just realizing
the 0-day bot emails are not CC'd to lkml. Here is the error I got
from the bot:

---

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.6-rc4 next-20200306]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Jessica-Yu/modpost-rework-and-consolidate-logging-interface/20200307-052346
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 30fe0d07fd7b27d41d9b31a224052cc4e910947a
config: sh-randconfig-a001-20200306 (attached as .config)
compiler: sh4-linux-gcc (GCC) 7.5.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.5.0 make.cross ARCH=sh

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

ERROR: modpost: "adc_single" [arch/sh/boards/mach-hp6xx/hp6xx_apm.ko] undefined!

Indeed, this one is odd.
I have no idea...
I've pushed the patches to a branch to let the kbuild bot run through its
build tests again, and if I have extra time today I will try to
reproduce this and let you know the results.

Thanks,

Jessica

Ah, Now I see.


Because you added "modpost:" prefix.



The previous error message:

ERROR: "adc_single" [arch/sh/boards/mach-hp6xx/hp6xx_apm.ko] undefined!


The new error message:

ERROR: modpost: "adc_single" [arch/sh/boards/mach-hp6xx/hp6xx_apm.ko] undefined!



So, the bot assumed it was a new error.
Nice catch! Hm, I suppose we need to let the LKP folks know about the
change in error message. CC'd LKP mailing list.
Thanks for the info, we will look into this to handle the
changed error.

Jessica
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Could you improve the report by adding more context?

Currently, only new errors/warnings are shown by '>>'.


If fixed ones had been shown by '<<',
we would have easily noticed that
this was just a matter of message format.

<< ERROR: "adc_single" [arch/sh/boards/mach-hp6xx/hp6xx_apm.ko] undefined!
ERROR: modpost: "adc_single" [arch/sh/boards/mach-hp6xx/hp6xx_apm.ko] undefined!

Hi,

Thanks for your advice, we'll add it into our todo list.

Best Regards,
Rong Chen