bnxt_re: fix the regression due to changes in alloc_pbl

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While adding the use of for_each_sg_dma_page iterator for Brodcom's rdma
driver, there was a regression added in the __alloc_pbl path. The change
left bnxt_re in DOA state in for-next branch.

Fixing the regression to avoid the host crash when a user space object is
created. Restricting the unconditional access to hwq.pg_arr when hwq is
initialized for user space objects.

Fixes: 161ebe2498 ("RDMA/bnxt_re: Use for_each_sg_dma_page iterator on umem SGL")
Reported-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

...

This commit is contained in:

Devesh Sharma 2019-02-22 07:16:19 -05:00 • committed by Jason Gunthorpe

parent 2612d723aa

commit c50866e285

3 changed files with 14 additions and 22 deletions

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11

drivers/infiniband/hw/bnxt_re/ib_verbs.c

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20

drivers/infiniband/hw/bnxt_re/qplib_fp.c

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5

drivers/infiniband/hw/bnxt_re/qplib_res.c

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