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drbd: Convert boolean flags on netlink from NLA_FLAG to NLA_U8

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Flags of type NLA_FLAG are either present or absent, but do not have a
value by themselves.  Use type NLA_U8 for our boolean flags instead, and
use the value to determine if the flag should be on or off.

On the drbdsetup command line, all those flags have an optional yes/no
argument which defaults to yes.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Andreas Gruenbacher 2011-05-04 16:06:51 +02:00 committed by Philipp Reisner
parent 813472ced7
commit a5d8e1fb9d
1 changed files with 2 additions and 8 deletions
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10
include/linux/genl_magic_struct.h
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@ -86,8 +86,8 @@ enum {
/* possible field types */
#define __flg_field(attr_nr, attr_flag, name) \
__field(attr_nr, attr_flag, name, NLA_FLAG, char, \
nla_get_flag, __nla_put_flag)
__field(attr_nr, attr_flag, name, NLA_U8, char, \
nla_get_u8, NLA_PUT_U8)
#define __u8_field(attr_nr, attr_flag, name) \
__field(attr_nr, attr_flag, name, NLA_U8, unsigned char, \
nla_get_u8, NLA_PUT_U8)
@ -118,12 +118,6 @@ enum {
#define __str_field_def(attr_nr, attr_flag, name, maxlen) \
__str_field(attr_nr, attr_flag, name, maxlen)
#define __nla_put_flag(skb, attrtype, value) \
do { \
if (value) \
NLA_PUT_FLAG(skb, attrtype); \
} while (0)
#define GENL_op_init(args...) args
#define GENL_doit(handler) \
.doit = handler, \