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netlink: make validation_data const

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The validation data is only used within the policy that
should usually already be const, and isn't changed in any
code that uses it. Therefore, make the validation_data
pointer const.

While at it, remove the duplicate variable in the bitfield
validation that I'd otherwise have to change to const.

Reviewed-by: David Ahern <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Johannes Berg 2018-09-26 11:15:31 +02:00 • committed by David S. Miller
commit 48fde90a78
2 changed files with 3 additions and 4 deletions
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5
lib/nlattr.c
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@ -45,12 +45,11 @@ static const u8 nla_attr_minlen[NLA_TYPE_MAX+1] = {
};
static int validate_nla_bitfield32(const struct nlattr *nla,
u32 *valid_flags_allowed)
const u32 *valid_flags_mask)
{
const struct nla_bitfield32 *bf = nla_data(nla);
u32 *valid_flags_mask = valid_flags_allowed;
if (!valid_flags_allowed)
if (!valid_flags_mask)
return -EINVAL;
/*disallow invalid bit selector */