On Fri, Mar 1, 2019 at 2:35 AM Peter Zijlstra <[email protected]> wrote:
>
> With the dodgy patch:
>
> CC drivers/gpu/drm/i915/i915_gem_execbuffer.o
> drivers/gpu/drm/i915/i915_gem_execbuffer.o: warning: objtool:
> eb_relocate_slow()+0x1f9: call to kvfree() with UACCESS enabled
> drivers/gpu/drm/i915/i915_gem_execbuffer.o: warning: objtool:
> i915_gem_execbuffer2_ioctl()+0x315: call to kvfree() with UACCESS enabled
Ok, so it looks like your patch does the right thing. Your fixups to
i915_gem_execbuffer.c (and the already commented-upon copy_user_tail
thing) also look sane.
Linus
