linux-kernel - Re: swim3.c:1200:38: error: 'FLOPPY_MAJOR' undeclared (first use in this function)

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Date:   Fri, 1 Oct 2021 19:25:59 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Randy Dunlap <rdunlap@...radead.org>,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        open list <linux-kernel@...r.kernel.org>,
        linux-block <linux-block@...r.kernel.org>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        lkft-triage@...ts.linaro.org
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: swim3.c:1200:38: error: 'FLOPPY_MAJOR' undeclared (first use in
 this function)

On 10/1/21 7:12 PM, Randy Dunlap wrote:
> On 10/1/21 12:57 PM, Jens Axboe wrote:
>> On 10/1/21 4:49 AM, Naresh Kamboju wrote:
>>> Following build errors noticed while building Linux next 20211001
>>> with gcc-11 for powerpc architecture.
>>>
>>> kernel/sched/debug.c: In function 'print_cfs_group_stats':
>>> kernel/sched/debug.c:460:41: warning: unused variable 'stats'
>>> [-Wunused-variable]
>>>    460 |                struct sched_statistics *stats =
>>> __schedstats_from_se(se);
>>>        |                                         ^~~~~
>>> In file included from include/linux/blkdev.h:6,
>>>                   from include/linux/blk-mq.h:5,
>>>                   from drivers/block/swim3.c:24:
>>> drivers/block/swim3.c: In function 'swim3_attach':
>>> drivers/block/swim3.c:1200:38: error: 'FLOPPY_MAJOR' undeclared (first
>>> use in this function)
>>>   1200 |                 rc = register_blkdev(FLOPPY_MAJOR, "fd");
>>>        |                                      ^~~~~~~~~~~~
>>> include/linux/genhd.h:276:27: note: in definition of macro 'register_blkdev'
>>>    276 |         __register_blkdev(major, name, NULL)
>>>        |                           ^~~~~
>>> drivers/block/swim3.c:1200:38: note: each undeclared identifier is
>>> reported only once for each function it appears in
>>>   1200 |                 rc = register_blkdev(FLOPPY_MAJOR, "fd");
>>>        |                                      ^~~~~~~~~~~~
>>> include/linux/genhd.h:276:27: note: in definition of macro 'register_blkdev'
>>>    276 |         __register_blkdev(major, name, NULL)
>>>        |                           ^~~~~
>>> make[3]: *** [scripts/Makefile.build:288: drivers/block/swim3.o] Error 1
>>> make[3]: Target '__build' not remade because of errors.
>>> make[2]: *** [scripts/Makefile.build:571: drivers/block] Error 2
>>> make[2]: Target '__build' not remade because of errors.
>>> make[1]: *** [Makefile:2034: drivers] Error 2
>>>
>>> Build config:
>>> https://builds.tuxbuild.com/1ytcB62L9I617oV0cveJtUhcpUu/config
>>>
>>> Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
>>>
>>> meta data:
>>> -----------
>>>      git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
>>>      git_sha: a25006a77348ba06c7bc96520d331cd9dd370715
>>>      git_short_log: a25006a77348 (\"Add linux-next specific files for 20211001\")
>>>      kconfig:  ppc6xx_defconfig
>>>      kernel_version: 5.15.0-rc3
>>>      target_arch: powerpc
>>>      toolchain: gcc-11
>>>
>>> steps to reproduce:
>>> https://builds.tuxbuild.com/1ytcB62L9I617oV0cveJtUhcpUu/tuxmake_reproducer.sh
>>
>> Does this fix it?
> 
> Yes, WorksForMe.
> 
> Acked-by: Randy Dunlap <rdunlap@...radead.org> # build-tested

Thanks, now added to my for-next branch.

-- 
Jens Axboe