IB/uverbs: Add a macro to define a type with no kernel known size

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Sometimes the uverbs uAPI  doesn't really care about the structure it gets
from user-space. All it wants to do is to allocate enough space and send
it to the hardware/provider driver. Adding a UVERBS_ATTR_MIN_SIZE that
could be used for this scenarios. We use USHRT_MAX as the kernel known
size to bypass any zero validations.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Matan Barak 2018-06-17 12:59:53 +03:00 • committed by Jason Gunthorpe

parent 8762d149e8

commit 2d9c1bd7e1

2 changed files with 4 additions and 2 deletions

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4

drivers/infiniband/core/uverbs_std_types.c

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2

include/rdma/uverbs_ioctl.h

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