Hi all,
On Fri, 7 Oct 2022 16:14:11 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> Today's linux-next merge of the bitmap tree got a conflict in:
>
> include/linux/nodemask.h
>
> between commit:
>
> 82f33a32b4d2 ("treewide: use prandom_u32_max() when possible")
>
> from the random tree and commit:
>
> 97848c10f9f8 ("lib/bitmap: remove bitmap_ord_to_pos")
>
> from the bitmap tree.
>
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging. You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
>
>
> diff --cc include/linux/nodemask.h
> index 66ee9b4b7925,0c45fb066caa..000000000000
> --- a/include/linux/nodemask.h
> +++ b/include/linux/nodemask.h
> @@@ -508,8 -508,7 +508,7 @@@ static inline int node_random(const nod
>
> w = nodes_weight(*maskp);
> if (w)
> - bit = bitmap_ord_to_pos(maskp->bits,
> - prandom_u32_max(w), MAX_NUMNODES);
> - bit = find_nth_bit(maskp->bits, MAX_NUMNODES, get_random_int() % w);
> ++ bit = find_nth_bit(maskp->bits, MAX_NUMNODES, prandom_u32_max(w));
> return bit;
> #else
> return 0;
This is now a conflict between the random tree and Linus' tree.
--
Cheers,
Stephen Rothwell
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