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| author |   Yishai Hadas <yishaih@nvidia.com> | 2021-03-04 15:04:59 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@nvidia.com> | 2021-03-11 20:20:36 -0400 |
| commit | 3f32dc0f4601b180bbfd7b5adc7f82557f1408d0 (patch) | |
| tree | caa8b30ce733c5a08a5a894f5ee6ce4092627622 /drivers/infiniband/core/umem.c | |
| parent | RDMA/mlx5: Fix mlx5 rates to IB rates map (diff) | |
| download | linux-dev-3f32dc0f4601b180bbfd7b5adc7f82557f1408d0.tar.xz linux-dev-3f32dc0f4601b180bbfd7b5adc7f82557f1408d0.zip | |
IB/core: Drop WARN_ON() from ib_umem_find_best_pgsz()
The WARN_ON() issued as part of ib_umem_find_best_pgsz() blocked cases
when only page sizes larger than PAGE_SIZE were set, drop it to enable
those cases.
In addition, there is no need to have a specific check for zero
pgsz_bitmap, the function will do its job and return 0 at the end if
nothing match will be found.
Link: https://lore.kernel.org/r/20210304130501.1102577-2-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/core/umem.c')
| -rw-r--r-- | drivers/infiniband/core/umem.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c index 2dde99a9ba07..2cd64649005b 100644 --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -100,10 +100,6 @@ unsigned long ib_umem_find_best_pgsz(struct ib_umem *umem, */ pgsz_bitmap &= GENMASK(BITS_PER_LONG - 1, PAGE_SHIFT); - /* At minimum, drivers must support PAGE_SIZE or smaller */ - if (WARN_ON(!(pgsz_bitmap & GENMASK(PAGE_SHIFT, 0)))) - return 0; - umem->iova = va = virt; /* The best result is the smallest page size that results in the minimum * number of required pages. Compute the largest page size that could |