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ethtool: Add and use ethnl_update_bool.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2023-01-23 13:57:39 +00:00
parent 7a98143118
commit dc0b98a175
2 changed files with 27 additions and 1 deletions
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2
net/ethtool/mm.c
View File

@ -225,7 +225,7 @@ int ethnl_set_mm(struct sk_buff *skb, struct genl_info *info)
ethnl_update_u32(&cfg.verify_time, tb[ETHTOOL_A_MM_VERIFY_TIME], &mod);
ethnl_update_bool(&cfg.tx_enabled, tb[ETHTOOL_A_MM_TX_ENABLED], &mod);
ethnl_update_bool(&cfg.pmac_enabled, tb[ETHTOOL_A_MM_PMAC_ENABLED],
&mod);
&mod);
ethnl_update_u32(&cfg.tx_min_frag_size,
tb[ETHTOOL_A_MM_TX_MIN_FRAG_SIZE], &mod);

26
net/ethtool/netlink.h
View File

@ -137,6 +137,32 @@ static inline void ethnl_update_bool32(u32 *dst, const struct nlattr *attr,
*mod = true;
}
/**
* ethnl_update_bool() - updateb bool used as bool from NLA_U8 attribute
* @dst: value to update
* @attr: netlink attribute with new value or null
* @mod: pointer to bool for modification tracking
*
* Use the bool value from NLA_U8 netlink attribute @attr to set bool variable
* pointed to by @dst to 0 (if zero) or 1 (if not); do nothing if @attr is
* null. Bool pointed to by @mod is set to true if this function changed the
* logical value of *dst, otherwise it is left as is.
*/
static inline void ethnl_update_bool(bool *dst, const struct nlattr *attr,
bool *mod)
{
u8 val;
if (!attr)
return;
val = !!nla_get_u8(attr);
if (!!*dst == val)
return;
*dst = val;
*mod = true;
}
/**
* ethnl_update_binary() - update binary data from NLA_BINARY attribute
* @dst: value to update