[PATCH] drm/i915: Fix CFI violations in gt_sysfs

[Kees Cook]

On Thu, Sep 22, 2022 at 12:51:27PM -0700, Nathan Chancellor wrote:
> [...]
> To make everything work properly, adjust certain functions to match the
> type of the ->show() and ->store() members in 'struct kobj_attribute'.
> Add a macro to generate functions for that can be called via both
> dev_attr_{show,store}() or kobj_attr_{show,store}() so that they can be
> called through both kobject locations without violating kCFI and adjust
> the attribute groups to account for this.

This was quite a roller coaster! I think the solution looks good, even
if I'm suspicious of the original design that has the same stuff
available twice in different places. (I have a dim memory of rdma
needing a refactoring like this too?)

Reviewed-by: Kees Cook <keescook at chromium.org>

-Kees

-- 
Kees Cook