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authorAndreas Gruenbacher <agruen@linbit.com>2011-06-09 17:52:12 +0200
committerPhilipp Reisner <philipp.reisner@linbit.com>2012-11-08 16:57:45 +0100
commit7c3063cc6f0e75cdf312f5f318f9a4c02e460397 (patch)
treeed54e6066aed1994577e20fc6d635d856627cbab /include/linux/genl_magic_func.h
parent789c1b626cb490acb36cf481b45040b324f60fde (diff)
drbd: Also need to check for DRBD_GENLA_F_MANDATORY flags before nla_find_nested()
This is done by introducing drbd_nla_find_nested() which handles the flag before calling nla_find_nested(). Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'include/linux/genl_magic_func.h')
-rw-r--r--include/linux/genl_magic_func.h37
1 files changed, 0 insertions, 37 deletions
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 357f2ad403b..0b8a88e2e83 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -142,43 +142,6 @@ static struct nlattr *nested_attr_tb[128];
#define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); }))
#endif
-static inline int drbd_nla_check_mandatory(int maxtype, struct nlattr *nla)
-{
- struct nlattr *head = nla_data(nla);
- int len = nla_len(nla);
- int rem;
-
- /*
- * validate_nla (called from nla_parse_nested) ignores attributes
- * beyond maxtype, and does not understand the DRBD_GENLA_F_MANDATORY flag.
- * In order to have it validate attributes with the DRBD_GENLA_F_MANDATORY
- * flag set also, check and remove that flag before calling
- * nla_parse_nested.
- */
-
- nla_for_each_attr(nla, head, len, rem) {
- if (nla->nla_type & DRBD_GENLA_F_MANDATORY) {
- nla->nla_type &= ~DRBD_GENLA_F_MANDATORY;
- if (nla_type(nla) > maxtype)
- return -EOPNOTSUPP;
- }
- }
- return 0;
-}
-
-static inline int drbd_nla_parse_nested(struct nlattr *tb[], int maxtype,
- struct nlattr *nla,
- const struct nla_policy *policy)
-{
- int err;
-
- err = drbd_nla_check_mandatory(maxtype, nla);
- if (!err)
- err = nla_parse_nested(tb, maxtype, nla, policy);
-
- return err;
-}
-
#undef GENL_struct
#define GENL_struct(tag_name, tag_number, s_name, s_fields) \
/* *_from_attrs functions are static, but potentially unused */ \