On Fri, Feb 26, 2021 at 01:18:14PM -0800, Brad Larson wrote:
> On Fri, Feb 26, 2021 at 12:43:07PM -0800, Brad Larson wrote:
> > Kernel Oops introduced in next-20210222 due to get_max_slots return arg
> size.
> > In the function find_slots() variable max_slots is zero when
> boundary_mask is
> > 0xffffffffffffffff.
>
> I am looking at the stable/for-linus-5.12 and what I sent out for
> a GIT PULL and I believe this is already squashed in:
>
> 531 static int find_slots(struct device *dev, phys_addr_t orig_addr,
>
>
> 532 size_t alloc_size)
>
>
> 533 {
>
> 534 unsigned long boundary_mask = dma_get_seg_boundary(dev);
>
>
> 535 dma_addr_t tbl_dma_addr =
>
> 536 phys_to_dma_unencrypted(dev, io_tlb_start) &
> boundary_mask;
> 537 unsigned long max_slots = get_max_slots(boundary_mask);
>
> Could you double-check please?
>
>
> Yes this is squashed in the snippet you are showing. The bug was introduced
> in
> next-20210222 and is still there when I updated to next-20210226 today.
Duh! It should be fixed now for the next one. Thank you!
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