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>
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associativity.rst | -rw-r--r-- | 4.6 KB |
booting.rst | -rw-r--r-- | 5.5 KB |
bootwrapper.rst | -rw-r--r-- | 6.6 KB |
cpu_families.rst | -rw-r--r-- | 6.2 KB |
cpu_features.rst | -rw-r--r-- | 2.7 KB |
cxl.rst | -rw-r--r-- | 15.8 KB |
cxlflash.rst | -rw-r--r-- | 21.6 KB |
dawr-power9.rst | -rw-r--r-- | 3.4 KB |
dscr.rst | -rw-r--r-- | 3.4 KB |
eeh-pci-error-recovery.rst | -rw-r--r-- | 14.9 KB |
elfnote.rst | -rw-r--r-- | 1.3 KB |
features.rst | -rw-r--r-- | 94 bytes |
firmware-assisted-dump.rst | -rw-r--r-- | 16.8 KB |
hvcs.rst | -rw-r--r-- | 22.5 KB |
imc.rst | -rw-r--r-- | 6.3 KB |
index.rst | -rw-r--r-- | 620 bytes |
isa-versions.rst | -rw-r--r-- | 2.1 KB |
kaslr-booke32.rst | -rw-r--r-- | 1.7 KB |
mpc52xx.rst | -rw-r--r-- | 1.2 KB |
papr_hcalls.rst | -rw-r--r-- | 14.4 KB |
pci_iov_resource_on_powernv.rst | -rw-r--r-- | 14.6 KB |
pmu-ebb.rst | -rw-r--r-- | 5.3 KB |
ptrace.rst | -rw-r--r-- | 6.1 KB |
qe_firmware.rst | -rw-r--r-- | 12.9 KB |
syscall64-abi.rst | -rw-r--r-- | 6.4 KB |
transactional_memory.rst | -rw-r--r-- | 11.1 KB |
ultravisor.rst | -rw-r--r-- | 33.8 KB |
vas-api.rst | -rw-r--r-- | 10.7 KB |
vcpudispatch_stats.rst | -rw-r--r-- | 3.0 KB |
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