linux-kernel - Re: linux-next: build failure after merge of the block tree

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Message-ID: <AANLkTinyaZfsYv43046LWgu8U3kg6_79y+PTFO1RxtnY@mail.gmail.com>
Date:	Fri, 7 Jan 2011 11:52:08 +0100
From:	Sedat Dilek <sedat.dilek@...glemail.com>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the block tree

On Fri, Jan 7, 2011 at 8:32 AM, Jens Axboe <axboe@...nel.dk> wrote:
> On 2011-01-07 01:05, Stephen Rothwell wrote:
>> Hi Jens,
>>
>> After merging the block tree, today's linux-next build (powerpc
>> ppc64_defconfig) failed like this:
>>
>> arch/powerpc/platforms/built-in.o: In function `.pmf_get_function':
>> (.text+0x723c): undefined reference to `.kref_get'
>> arch/powerpc/platforms/built-in.o: In function `.pmf_unregister_driver':
>> (.text+0x72c8): undefined reference to `.kref_get'
>> arch/powerpc/platforms/built-in.o: In function `.pmf_do_functions':
>> (.text+0x793c): undefined reference to `.kref_get'
>> arch/powerpc/platforms/built-in.o: In function `.__pmf_find_function':
>> (.text+0x7c80): undefined reference to `.kref_get'
>> arch/powerpc/platforms/built-in.o: In function `.pmf_register_driver':
>> (.text+0x8044): undefined reference to `.kref_get'
>> arch/powerpc/platforms/built-in.o:(.text+0x8310): more undefined references to `.kref_get' follow
>> lib/lib.a(kref.o):(__ksymtab+0x10): undefined reference to `kref_get'
>> drivers/built-in.o: In function `.get_current_tty':
>> (.text+0x60970): undefined reference to `.kref_get'
>> drivers/built-in.o: In function `.__proc_set_tty':
>> tty_io.c:(.text+0x61624): undefined reference to `.kref_get'
>> drivers/built-in.o: In function `.tty_init_dev':
>> (.text+0x64d2c): undefined reference to `.kref_get'
>> drivers/built-in.o: In function `.tty_open':
>> tty_io.c:(.text+0x64ee4): undefined reference to `.kref_get'
>> tty_io.c:(.text+0x64f20): undefined reference to `.kref_get'
>> drivers/built-in.o:tty_io.c:(.text+0x64f58): more undefined references to `.kref_get' follow
>>
>> Caused by commit 15454034cb3021d8bb9d21b4f35072a809197fdd ("block: add
>> internal hd part table references") which removes kref_get() instead of
>> kref_test_and_get()!
>>
>> This really wasn't tested, right?
>
> Irk, it was tested and booted, but apparently I merged the first bad
> version of the patch.
>
>> I have used the block tree from next-20110106 for today.
>
> Thanks, I'll get this fixed up now.
>
>
> --
> Jens Axboe
>

JFYI:
I pulled in patches from linux-2.6-block#for-next (up to commit
6573422f81efa3bd71848dc584c35d4318d3de0b):
"Merge branch 'for-2.6.38/core' into for-next"
...into linux-next (next-20110107) and now I get:

$ grep block build_linux-next_next20110107.dileks.2.log
30886 blocks
  CC      fs/block_dev.o
  CC      mm/memblock.o
  CC      kernel/power/block_io.o
/home/sd/src/linux-2.6/linux-2.6.37/debian/build/source_i386_none/kernel/trace/blktrace.c:999:2:
warning: passing argument 1 of ‘register_trace_block_bio_complete’
from incompatible pointer type
/home/sd/src/linux-2.6/linux-2.6.37/debian/build/source_i386_none/include/trace/events/block.h:240:1:
note: expected ‘void (*)(void *, struct request_queue *, struct bio *,
int)’ but argument is of type ‘void (*)(void *, struct request_queue
*, struct bio *)’
/home/sd/src/linux-2.6/linux-2.6.37/debian/build/source_i386_none/kernel/trace/blktrace.c:1038:2:
warning: passing argument 1 of ‘unregister_trace_block_bio_complete’
from incompatible pointer type
/home/sd/src/linux-2.6/linux-2.6.37/debian/build/source_i386_none/include/trace/events/block.h:240:1:
note: expected ‘void (*)(void *, struct request_queue *, struct bio *,
int)’ but argument is of type ‘void (*)(void *, struct request_queue
*, struct bio *)’
  CC      arch/x86/mm/memblock.o
  CC      block/elevator.o
  CC      block/blk-core.o
  CC      block/blk-tag.o
  CC      block/blk-sysfs.o
  CC      block/blk-flush.o
  CC      block/blk-settings.o
  CC      block/blk-ioc.o
  CC      block/blk-map.o
  CC      block/blk-exec.o
  CC      block/blk-merge.o
  CC      block/blk-softirq.o
  CC      block/blk-timeout.o
  CC      block/blk-iopoll.o
  CC      block/blk-lib.o
  CC      block/ioctl.o
  CC      block/genhd.o
  CC      block/scsi_ioctl.o
  CC      block/bsg.o
  CC      block/blk-cgroup.o
  CC      block/noop-iosched.o
  CC      block/deadline-iosched.o
  CC      block/cfq-iosched.o
  CC      block/blk-integrity.o
  LD      block/built-in.o

- Sedat -
--
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