[PATCH v2 1/2] powerpc: pci-ioda: use bitmap_alloc() in pnv_ioda_pick_m64_pe()

Yury Norov yury.norov at gmail.com
Thu Aug 14 10:43:17 AEST 2025


On Tue, Aug 12, 2025 at 11:07:08AM +1000, Andrew Donnellan wrote:
> On Mon, 2025-08-11 at 12:51 -0400, Yury Norov wrote:
> 
> > -	/* Allocate bitmap */
> > -	size = ALIGN(phb->ioda.total_pe_num / 8, sizeof(unsigned long));
> > -	pe_alloc = kzalloc(size, GFP_KERNEL);
> > +	pe_alloc = bitmap_alloc(phb->ioda.total_pe_num, GFP_KERNEL);
> 
> I haven't checked whether or not this has practical impact given what we later
> do with the bitmap - does this need to be bitmap_zalloc() to match the existing
> use of kzalloc()?

That's fair. I'll send v3 with bitmap_zalloc().


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