diff options
Diffstat (limited to 'drivers/infiniband/core/uverbs_ioctl.c')
| -rw-r--r-- | drivers/infiniband/core/uverbs_ioctl.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/drivers/infiniband/core/uverbs_ioctl.c b/drivers/infiniband/core/uverbs_ioctl.c index ff047eb024ab..990f0724acc6 100644 --- a/drivers/infiniband/core/uverbs_ioctl.c +++ b/drivers/infiniband/core/uverbs_ioctl.c @@ -752,9 +752,10 @@ int uverbs_output_written(const struct uverbs_attr_bundle *bundle, size_t idx) return uverbs_set_output(bundle, attr); } -int _uverbs_get_const(s64 *to, const struct uverbs_attr_bundle *attrs_bundle, - size_t idx, s64 lower_bound, u64 upper_bound, - s64 *def_val) +int _uverbs_get_const_signed(s64 *to, + const struct uverbs_attr_bundle *attrs_bundle, + size_t idx, s64 lower_bound, u64 upper_bound, + s64 *def_val) { const struct uverbs_attr *attr; @@ -773,7 +774,30 @@ int _uverbs_get_const(s64 *to, const struct uverbs_attr_bundle *attrs_bundle, return 0; } -EXPORT_SYMBOL(_uverbs_get_const); +EXPORT_SYMBOL(_uverbs_get_const_signed); + +int _uverbs_get_const_unsigned(u64 *to, + const struct uverbs_attr_bundle *attrs_bundle, + size_t idx, u64 upper_bound, u64 *def_val) +{ + const struct uverbs_attr *attr; + + attr = uverbs_attr_get(attrs_bundle, idx); + if (IS_ERR(attr)) { + if ((PTR_ERR(attr) != -ENOENT) || !def_val) + return PTR_ERR(attr); + + *to = *def_val; + } else { + *to = attr->ptr_attr.data; + } + + if (*to > upper_bound) + return -EINVAL; + + return 0; +} +EXPORT_SYMBOL(_uverbs_get_const_unsigned); int uverbs_copy_to_struct_or_zero(const struct uverbs_attr_bundle *bundle, size_t idx, const void *from, size_t size) |