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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-29 08:03:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-29 08:03:05 +0100 |
| commit | 24cd719712aeb5b5e4562f37ef5f7ba33040b59f (patch) | |
| tree | 689077bc9bf2e9f8b7df1c6a37dcefe8045912d7 /net/core/page_pool.c | |
| parent | 84c365f8ff8fc93a34d6cabe780d0b0f49c177e2 (diff) | |
| parent | d58071a8a76d779eedab38033ae4c821c30295a5 (diff) | |
| download | lwn-24cd719712aeb5b5e4562f37ef5f7ba33040b59f.tar.gz lwn-24cd719712aeb5b5e4562f37ef5f7ba33040b59f.zip | |
Merge 5.16-rc3 into staging-next
We need the staging driver fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core/page_pool.c')
| -rw-r--r-- | net/core/page_pool.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 9b60e4301a44..1a6978427d6c 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -49,12 +49,6 @@ static int page_pool_init(struct page_pool *pool, * which is the XDP_TX use-case. */ if (pool->p.flags & PP_FLAG_DMA_MAP) { - /* DMA-mapping is not supported on 32-bit systems with - * 64-bit DMA mapping. - */ - if (sizeof(dma_addr_t) > sizeof(unsigned long)) - return -EOPNOTSUPP; - if ((pool->p.dma_dir != DMA_FROM_DEVICE) && (pool->p.dma_dir != DMA_BIDIRECTIONAL)) return -EINVAL; @@ -75,6 +69,10 @@ static int page_pool_init(struct page_pool *pool, */ } + if (PAGE_POOL_DMA_USE_PP_FRAG_COUNT && + pool->p.flags & PP_FLAG_PAGE_FRAG) + return -EINVAL; + if (ptr_ring_init(&pool->ring, ring_qsize, GFP_KERNEL) < 0) return -ENOMEM; |