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 |
|---|---|---|
| keystone | ||
| nwfpe | ||
| omap | ||
| pxa | ||
| sa1100 | ||
| samsung | ||
| samsung-s3c24xx | ||
| spear | ||
| sti | ||
| stm32 | ||
| sunxi | ||
| vfp | ||
| arm.rst | -rw-r--r-- | 7.7 KB |
| booting.rst | -rw-r--r-- | 7.9 KB |
| cluster-pm-race-avoidance.rst | -rw-r--r-- | 16.3 KB |
| features.rst | -rw-r--r-- | 90 bytes |
| firmware.rst | -rw-r--r-- | 2.3 KB |
| index.rst | -rw-r--r-- | 1.1 KB |
| interrupts.rst | -rw-r--r-- | 6.7 KB |
| ixp4xx.rst | -rw-r--r-- | 6.3 KB |
| kernel_mode_neon.rst | -rw-r--r-- | 5.6 KB |
| kernel_user_helpers.rst | -rw-r--r-- | 6.7 KB |
| marvell.rst | -rw-r--r-- | 23.9 KB |
| mem_alignment.rst | -rw-r--r-- | 2.6 KB |
| memory.rst | -rw-r--r-- | 3.7 KB |
| microchip.rst | -rw-r--r-- | 6.2 KB |
| netwinder.rst | -rw-r--r-- | 1.8 KB |
| porting.rst | -rw-r--r-- | 4.4 KB |
| setup.rst | -rw-r--r-- | 3.6 KB |
| sunxi.rst | -rw-r--r-- | 4.2 KB |
| swp_emulation.rst | -rw-r--r-- | 1.2 KB |
| tcm.rst | -rw-r--r-- | 5.1 KB |
| uefi.rst | -rw-r--r-- | 3.1 KB |
| vlocks.rst | -rw-r--r-- | 6.7 KB |
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