Re: [PATCH] module: set __jump_table alignment to 8

From: Michael Ellerman
Date: Thu Mar 02 2017 - 09:55:33 EST


Michael Ellerman <mpe@xxxxxxxxxxxxxx> writes:
> David Daney <david.daney@xxxxxxxxxx> writes:
>> Strict alignment became necessary with commit 3821fd35b58d
>> ("jump_label: Reduce the size of struct static_key"), currently in
>> linux-next, which uses the two least significant bits of pointers to
>> __jump_table elements.
>
> It would obviously be nice if this could go in before the commit that
> exposes the breakage, but I guess that's problematic because Steve
> doesn't want to rebase the tracing tree.
>
> Steve I think you've already sent your pull request for this cycle? So I
> guess if this can go in your first batch of fixes?

Ugh. Was looking at the wrong tree - Linus has already merged the commit
in question, so the above is all moot.

cheers