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| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2023-01-03 17:56:41 +0100 |
|---|---|---|
| committer | Stefan Schmidt <stefan@datenfreihafen.org> | 2023-01-03 19:36:53 +0100 |
| commit | d2aaf2a01792ccf214f933d0b1ca2d41788c7b16 (patch) | |
| tree | f3b5c28acaa821dbb79595158a8c4a67131c2afc /net/ieee802154 | |
| parent | 44def58f5835bbfaf81902c88460fd86a551f4b7 (diff) | |
| download | linux-d2aaf2a01792ccf214f933d0b1ca2d41788c7b16.tar.gz linux-d2aaf2a01792ccf214f933d0b1ca2d41788c7b16.tar.bz2 linux-d2aaf2a01792ccf214f933d0b1ca2d41788c7b16.zip | |
ieee802154: Introduce a helper to validate a channel
This helper for now only checks if the page member and channel member
are valid (in the specification range) and supported (by checking the
device capabilities). Soon two new parameters will be introduced and
having this helper will let us only modify its content rather than
modifying the logic everywhere else in the subsystem.
There is not functional change.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20230103165644.432209-4-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Diffstat (limited to 'net/ieee802154')
| -rw-r--r-- | net/ieee802154/nl802154.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index 11aa693af449..0b7a9f16b3b6 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -976,8 +976,7 @@ static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info) channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]); /* check 802.15.4 constraints */ - if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL || - !(rdev->wpan_phy.supported.channels[page] & BIT(channel))) + if (!ieee802154_chan_is_valid(&rdev->wpan_phy, page, channel)) return -EINVAL; return rdev_set_channel(rdev, page, channel); |