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 |
|---|---|---|
| bfq-iosched.rst | -rw-r--r-- | 26.2 KB |
| biodoc.rst | -rw-r--r-- | 51.4 KB |
| biovecs.rst | -rw-r--r-- | 6.8 KB |
| blk-mq.rst | -rw-r--r-- | 7.3 KB |
| capability.rst | -rw-r--r-- | 319 bytes |
| cmdline-partition.rst | -rw-r--r-- | 1.6 KB |
| data-integrity.rst | -rw-r--r-- | 11.9 KB |
| deadline-iosched.rst | -rw-r--r-- | 2.9 KB |
| index.rst | -rw-r--r-- | 351 bytes |
| inline-encryption.rst | -rw-r--r-- | 16.7 KB |
| ioprio.rst | -rw-r--r-- | 4.7 KB |
| kyber-iosched.rst | -rw-r--r-- | 422 bytes |
| null_blk.rst | -rw-r--r-- | 4.5 KB |
| pr.rst | -rw-r--r-- | 3.8 KB |
| queue-sysfs.rst | -rw-r--r-- | 12.6 KB |
| request.rst | -rw-r--r-- | 2.5 KB |
| stat.rst | -rw-r--r-- | 4.2 KB |
| switching-sched.rst | -rw-r--r-- | 1.2 KB |
| writeback_cache_control.rst | -rw-r--r-- | 3.9 KB |
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