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netlink: hide validation union fields from kdoc

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Mark the validation fields as private, users shouldn't set
them directly and they are too complicated to explain in
a more succinct way (there's already a long explanation
in the comment above).

The strict_start_type field is set directly and has a dedicated
comment so move that above the "private" section.

Link: https://lore.kernel.org/r/20221027212107.2639255-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2022-10-27 14:21:07 -07:00
parent 8fdf3f6aba
commit 7354c9024f
1 changed files with 18 additions and 13 deletions
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31
include/net/netlink.h
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@ -317,19 +317,10 @@ struct nla_policy {
u8 validation_type;
u16 len;
union {
const u32 bitfield32_valid;
const u32 mask;
const char *reject_message;
const struct nla_policy *nested_policy;
struct netlink_range_validation *range;
struct netlink_range_validation_signed *range_signed;
struct {
s16 min, max;
u8 network_byte_order:1;
};
int (*validate)(const struct nlattr *attr,
struct netlink_ext_ack *extack);
/* This entry is special, and used for the attribute at index 0
/**
* @strict_start_type: first attribute to validate strictly
*
* This entry is special, and used for the attribute at index 0
* only, and specifies special data about the policy, namely it
* specifies the "boundary type" where strict length validation
* starts for any attribute types >= this value, also, strict
@ -348,6 +339,20 @@ struct nla_policy {
* was added to enforce strict validation from thereon.
*/
u16 strict_start_type;
/* private: use NLA_POLICY_*() to set */
const u32 bitfield32_valid;
const u32 mask;
const char *reject_message;
const struct nla_policy *nested_policy;
struct netlink_range_validation *range;
struct netlink_range_validation_signed *range_signed;
struct {
s16 min, max;
u8 network_byte_order:1;
};
int (*validate)(const struct nlattr *attr,
struct netlink_ext_ack *extack);
};
};