[PATCH] module: set __jump_table alignment to 8

Jason Baron jbaron at akamai.com
Thu Mar 2 07:30:50 PST 2017


On 03/01/2017 05:04 PM, David Daney wrote:
> For powerpc the __jump_table section in modules is not aligned, this
> causes a WARN_ON() splat when loading a module containing a __jump_table.
>
> 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.
>
> Fix by forcing __jump_table to 8, which is the same alignment used for
> this section in the kernel proper.
>
> Signed-off-by: David Daney <david.daney at cavium.com>
> Tested-by: Sachin Sant <sachinp at linux.vnet.ibm.com>
> ---

Looks good to me.

Reviewed-by: Jason Baron <jbaron at akamai.com>

Thanks,

-Jason



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