Symbol: b43_dma_ptr_is_poisoned
drivers/net/wireless/broadcom/b43/dma.c
1477
if (b43_dma_ptr_is_poisoned(meta->skb)) {
drivers/net/wireless/broadcom/b43/dma.c
785
if (!meta->skb || b43_dma_ptr_is_poisoned(meta->skb)) {