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SubjectRe: Re: [PATCH -tip 3/3] x86: Remove unused text_poke_smp and text_poke_smp_batch
(2013/07/22 17:21), Ingo Molnar wrote:
>
> * Ingo Molnar <mingo@kernel.org> wrote:
>
>>
>> * Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> wrote:
>>
>>> Since introducing the text_poke_bp for all text_poke_smp*
>>> callers, text_poke_smp* are now unused. This basically
>>> reverts 3d55cc8a, 7deb18dc and related commits.
>>>
>>> This also fixes a Kconfig dependency issue on STOP_MACHINE
>>> in the case of CONFIG_SMP && !CONFIG_MODULE_UNLOAD.
>>>
>>> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
>>> ---
>>> arch/x86/Kconfig | 5 --
>>> arch/x86/include/asm/alternative.h | 11 ----
>>> arch/x86/kernel/alternative.c | 98 +-----------------------------------
>>> 3 files changed, 2 insertions(+), 112 deletions(-)
>>
>> Hm, it does not build with the attached config:
>>
>> arch/x86/kernel/kprobes/opt.c: In function 'setup_optimize_kprobe':
>> arch/x86/kernel/kprobes/opt.c:394:6: error: dereferencing pointer to incomplete type
>> arch/x86/kernel/kprobes/opt.c:395:6: error: dereferencing pointer to incomplete type
>> arch/x86/kernel/kprobes/opt.c:396:6: error: dereferencing pointer to incomplete type
>
> 32-bit appears to be the key pattern.

Ingo, please make sure your x86/jumplabel tree picked all of my patches.
This 3/3 strongly depends on the previous 1/3 and 2/3.
Without it, kprobes/opt.c can not be build because it still uses the
text_poke_params data structure which 3/3 removes.

Thank you,

--
Masami HIRAMATSU
IT Management Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@hitachi.com




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