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| author | Li Zhijian <[email protected]> | 2024-12-31 01:34:16 +0000 |
|---|---|---|
| committer | Leon Romanovsky <[email protected]> | 2024-12-31 13:28:26 +0000 |
| commit | fb514b31395946022f13a08e06a435f53cf9e8b3 (patch) | |
| tree | 9618b8e5ea6c8262367881d84f34b9a8183f6f08 /drivers/fpga/fpga-region.c | |
| parent | RDMA/rxe: Remove the direct link to net_device (diff) | |
| download | kernel-fb514b31395946022f13a08e06a435f53cf9e8b3.tar.gz kernel-fb514b31395946022f13a08e06a435f53cf9e8b3.zip | |
RDMA/rtrs: Ensure 'ib_sge list' is accessible
Move the declaration of the 'ib_sge list' variable outside the
'always_invalidate' block to ensure it remains accessible for use
throughout the function.
Previously, 'ib_sge list' was declared within the 'always_invalidate'
block, limiting its accessibility, then caused a
'BUG: kernel NULL pointer dereference'[1].
? __die_body.cold+0x19/0x27
? page_fault_oops+0x15a/0x2d0
? search_module_extables+0x19/0x60
? search_bpf_extables+0x5f/0x80
? exc_page_fault+0x7e/0x180
? asm_exc_page_fault+0x26/0x30
? memcpy_orig+0xd5/0x140
rxe_mr_copy+0x1c3/0x200 [rdma_rxe]
? rxe_pool_get_index+0x4b/0x80 [rdma_rxe]
copy_data+0xa5/0x230 [rdma_rxe]
rxe_requester+0xd9b/0xf70 [rdma_rxe]
? finish_task_switch.isra.0+0x99/0x2e0
rxe_sender+0x13/0x40 [rdma_rxe]
do_task+0x68/0x1e0 [rdma_rxe]
process_one_work+0x177/0x330
worker_thread+0x252/0x390
? __pfx_worker_thread+0x10/0x10
This change ensures the variable is available for subsequent operations
that require it.
[1] https://lore.kernel.org/linux-rdma/[email protected]/
Fixes: 9cb837480424 ("RDMA/rtrs: server: main functionality")
Signed-off-by: Li Zhijian <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-region.c')
0 files changed, 0 insertions, 0 deletions