Commit 33d06d1d authored by Matthew Wilcox (Oracle)'s avatar Matthew Wilcox (Oracle) Committed by Jakub Kicinski
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niu: Use page->private instead of page->index



We are close to removing page->index.  Use page->private instead, which
is least likely to be removed.

Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Link: https://patch.msgid.link/20241216155124.3114-1-willy@infradead.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 1ba06ca9
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+11 −11
Original line number Diff line number Diff line
@@ -3303,7 +3303,7 @@ static struct page *niu_find_rxpage(struct rx_ring_info *rp, u64 addr,
	addr &= PAGE_MASK;
	pp = &rp->rxhash[h];
	for (; (p = *pp) != NULL; pp = &niu_next_page(p)) {
		if (p->index == addr) {
		if (p->private == addr) {
			*link = pp;
			goto found;
		}
@@ -3318,7 +3318,7 @@ static void niu_hash_page(struct rx_ring_info *rp, struct page *page, u64 base)
{
	unsigned int h = niu_hash_rxaddr(rp, base);

	page->index = base;
	page->private = base;
	niu_next_page(page) = rp->rxhash[h];
	rp->rxhash[h] = page;
}
@@ -3400,11 +3400,11 @@ static int niu_rx_pkt_ignore(struct niu *np, struct rx_ring_info *rp)

		rcr_size = rp->rbr_sizes[(val & RCR_ENTRY_PKTBUFSZ) >>
					 RCR_ENTRY_PKTBUFSZ_SHIFT];
		if ((page->index + PAGE_SIZE) - rcr_size == addr) {
		if ((page->private + PAGE_SIZE) - rcr_size == addr) {
			*link = niu_next_page(page);
			np->ops->unmap_page(np->device, page->index,
			np->ops->unmap_page(np->device, page->private,
					    PAGE_SIZE, DMA_FROM_DEVICE);
			page->index = 0;
			page->private = 0;
			niu_next_page(page) = NULL;
			__free_page(page);
			rp->rbr_refill_pending++;
@@ -3469,11 +3469,11 @@ static int niu_process_rx_pkt(struct napi_struct *napi, struct niu *np,
			append_size = append_size - skb->len;

		niu_rx_skb_append(skb, page, off, append_size, rcr_size);
		if ((page->index + rp->rbr_block_size) - rcr_size == addr) {
		if ((page->private + rp->rbr_block_size) - rcr_size == addr) {
			*link = niu_next_page(page);
			np->ops->unmap_page(np->device, page->index,
			np->ops->unmap_page(np->device, page->private,
					    PAGE_SIZE, DMA_FROM_DEVICE);
			page->index = 0;
			page->private = 0;
			niu_next_page(page) = NULL;
			rp->rbr_refill_pending++;
		} else
@@ -3538,11 +3538,11 @@ static void niu_rbr_free(struct niu *np, struct rx_ring_info *rp)
		page = rp->rxhash[i];
		while (page) {
			struct page *next = niu_next_page(page);
			u64 base = page->index;
			u64 base = page->private;

			np->ops->unmap_page(np->device, base, PAGE_SIZE,
					    DMA_FROM_DEVICE);
			page->index = 0;
			page->private = 0;
			niu_next_page(page) = NULL;

			__free_page(page);
@@ -6460,7 +6460,7 @@ static void niu_reset_buffers(struct niu *np)
				page = rp->rxhash[j];
				while (page) {
					struct page *next = niu_next_page(page);
					u64 base = page->index;
					u64 base = page->private;
					base = base >> RBR_DESCR_ADDR_SHIFT;
					rp->rbr[k++] = cpu_to_le32(base);
					page = next;