forked from Minki/linux
422e3d37ed
After all the rework is done it is now possible to include single flags in the type macros. Any user of UVERBS_ATTR_STRUCT needs to zero check data past the end of the known struct to be correct, so make this mandatory, and get rid of MIN_SZ_OR_ZERO as a user flag. This changes UVERBS_ATTR_TYPE to refer to a struct of exact size with not possibility of extension, convert the few users of UVERBS_ATTR_TYPE and MIN_SZ_OR_ZERO to use UVERBS_ATTR_STRUCT. The one user of UVERBS_ATTR_STRUCT without MIN_SZ_OR_ZERO is just confused. There is some padding at the end of that struct, but userspace always provides it with the padding. The construction doesn't test if the padding is zero, so it is pointless. Just use UVERBS_ATTR_TYPE. Finally, rename min_sz_or_zero to zero_trailing to better reflect what it does and hopefully avoid such mis-uses in the future. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> |
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