Revision 1d5a474240407c38ca8c7484a656ee39f585399c authored by Martin Habets on 02 January 2022, 08:41:22 UTC, committed by Jakub Kicinski on 05 January 2022, 02:14:21 UTC
The RX page_ring is an optional feature that improves
performance. When allocation fails the driver can still
function, but possibly with a lower bandwidth.
Guard against dereferencing a NULL page_ring.
Fixes: 2768935a4660 ("sfc: reuse pages to avoid DMA mapping/unmapping costs")
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Reported-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/164111288276.5798.10330502993729113868.stgit@palantir17.mph.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1 parent 6f89ecf
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 409 bytes |
| Makefile | -rw-r--r-- | 197 bytes |
| xdp_umem.c | -rw-r--r-- | 5.4 KB |
| xdp_umem.h | -rw-r--r-- | 377 bytes |
| xsk.c | -rw-r--r-- | 32.0 KB |
| xsk.h | -rw-r--r-- | 1.2 KB |
| xsk_buff_pool.c | -rw-r--r-- | 14.5 KB |
| xsk_diag.c | -rw-r--r-- | 5.2 KB |
| xsk_queue.c | -rw-r--r-- | 1.1 KB |
| xsk_queue.h | -rw-r--r-- | 11.9 KB |
| xskmap.c | -rw-r--r-- | 6.6 KB |
Computing file changes ...
