linux-kernel - Re: [EXT] build failure of next-20220906 due to 8bfc149ba24c ("scsi: qla2xxx: Enhance driver tracing with separate tunable and more")

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Date:   Tue, 6 Sep 2022 09:05:38 -0700
From:   Arun Easi <aeasi@...vell.com>
To:     "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@...il.com>
CC:     Steven Rostedt <rostedt@...dmis.org>,
        Nilesh Javali <njavali@...vell.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        <GR-QLogic-Storage-Upstream@...vell.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-next@...r.kernel.org>
Subject: Re: [EXT] build failure of next-20220906 due to 8bfc149ba24c ("scsi:
 qla2xxx: Enhance driver tracing with separate tunable and more")

Hi Sudip,

On Tue, 6 Sep 2022, 7:32am, Sudip Mukherjee (Codethink) wrote:

> External Email
> 
> ----------------------------------------------------------------------
> Hi All,
> 
> The builds of loongarch loongson3_defconfig have failed to build
> next-20220906 with the error:
> 
> drivers/scsi/qla2xxx/qla_os.c: In function 'qla_trace_init':
> drivers/scsi/qla2xxx/qla_os.c:2854:25: error: implicit declaration of function 'trace_array_get_by_name'; did you mean 'trace_array_set_clr_event'? [-Werror=implicit-function-declaration]
>  2854 |         qla_trc_array = trace_array_get_by_name("qla2xxx");
>       |                         ^~~~~~~~~~~~~~~~~~~~~~~
>       |                         trace_array_set_clr_event
> 
> drivers/scsi/qla2xxx/qla_os.c: In function 'qla_trace_uninit':
> drivers/scsi/qla2xxx/qla_os.c:2869:9: error: implicit declaration of function 'trace_array_put' [-Werror=implicit-function-declaration]
>  2869 |         trace_array_put(qla_trc_array);
>       |         ^~~~~~~~~~~~~~~
> 
> 
> git bisect pointed to 8bfc149ba24c ("scsi: qla2xxx: Enhance driver tracing with separate tunable and more").
> 
> I will be happy to test any patch or provide any extra log if needed.
> 
> 

This looks like is happening due to CONFIG_TRACING not being enabled (same 
as what kernel test bot reported). Could you try out the fix attached?

@Steven, please see the patch attached. Do you think the fix belongs 
better in linux/trace.h ?

Regards,
-Arun
View attachment "0001-fixup-qla2xxx-Enhance-driver-tracing-with-separate-t.patch" of type "text/plain" (1771 bytes)