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Date:   Wed, 27 Feb 2019 17:25:18 -0500
From:   Joe Lawrence <>
To:     Thomas Gleixner <>
Cc:,,, Jiri Slaby <>,
        Josh Poimboeuf <>
Subject: Re: [PATCH] x86/stacktrace: export save_stack_trace_tsk_reliable

On 2/27/19 4:31 PM, Thomas Gleixner wrote:
> On Wed, 27 Feb 2019, Joe Lawrence wrote:
>> The ppc64le implementation of save_stack_trace_tsk_reliable() is
>> exported, so do the same with x86.
> And what's the in tree module user of this? I can't find one and just
> because PPC has an export with no user is not a convincing argument to add
> another one. The proper solution is to remove the unused PPC export.

Good point.

For that matter, I do see in-tree modules making use of 
save_stack_trace, but who is calling save_stack_trace_tsk (exported by 
most arches) and save_stack_trace_regs (exported by openrisc, powerpc, 

-- Joe

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