RDMA/hns: Add a check to ensure integer mtu is positive

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GCC may reports an running time assert error when a value calculated from
ib_mtu_enum_to_int() is using as 'val' in FIELD_PREDP:

include/linux/compiler_types.h:328:38: error: call to
'__compiletime_assert_1524' declared with attribute error: FIELD_PREP:
value too large for the field

So a check is added about whether integer mtu from ib_mtu_enum_to_int() is
negative to avoid this warning.

Link: https://lore.kernel.org/r/1624262443-24528-3-git-send-email-liweihang@huawei.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

...

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Weihang Li 2021-06-21 16:00:36 +08:00 • committed by Jason Gunthorpe

parent 78c1da5270

commit fe331da0f2

1 changed files with 10 additions and 5 deletions

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15

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

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