diff options
| author | Ingo Molnar <mingo@kernel.org> | 2022-01-08 10:53:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2022-01-08 10:53:57 +0100 |
| commit | 0422fe2666aea4c0986f4c89dc107731aa6a7a81 (patch) | |
| tree | 1d42a146a738fb933f061424751755e630aeccb0 /drivers/net/ethernet/sfc/rx_common.c | |
| parent | 4b3ddc6462e83452182177b48c4bc53607acd68e (diff) | |
| parent | d1587f7bfe9a0f97a75d42ac1489aeda551106bc (diff) | |
Merge branch 'linus' into irq/core, to fix conflict
Conflicts:
drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/sfc/rx_common.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/rx_common.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/ethernet/sfc/rx_common.c b/drivers/net/ethernet/sfc/rx_common.c index 68fc7d317693..633ca77a26fd 100644 --- a/drivers/net/ethernet/sfc/rx_common.c +++ b/drivers/net/ethernet/sfc/rx_common.c @@ -45,6 +45,8 @@ static struct page *efx_reuse_page(struct efx_rx_queue *rx_queue) unsigned int index; struct page *page; + if (unlikely(!rx_queue->page_ring)) + return NULL; index = rx_queue->page_remove & rx_queue->page_ptr_mask; page = rx_queue->page_ring[index]; if (page == NULL) @@ -114,6 +116,9 @@ void efx_recycle_rx_pages(struct efx_channel *channel, { struct efx_rx_queue *rx_queue = efx_channel_get_rx_queue(channel); + if (unlikely(!rx_queue->page_ring)) + return; + do { efx_recycle_rx_page(channel, rx_buf); rx_buf = efx_rx_buf_next(rx_queue, rx_buf); @@ -150,7 +155,10 @@ static void efx_init_rx_recycle_ring(struct efx_rx_queue *rx_queue) efx->rx_bufs_per_page); rx_queue->page_ring = kcalloc(page_ring_size, sizeof(*rx_queue->page_ring), GFP_KERNEL); - rx_queue->page_ptr_mask = page_ring_size - 1; + if (!rx_queue->page_ring) + rx_queue->page_ptr_mask = 0; + else + rx_queue->page_ptr_mask = page_ring_size - 1; } static void efx_fini_rx_recycle_ring(struct efx_rx_queue *rx_queue) |