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authorMiquel Raynal <miquel.raynal@bootlin.com>2022-10-07 10:53:08 +0200
committerStefan Schmidt <stefan@datenfreihafen.org>2022-10-12 12:57:19 +0200
commita4b5b4c56dd8b1dd46b2f13cb09f5f8031978f86 (patch)
treed574fcea4bfd610a79fa7b6b8ce7c7912e09e9d2
parentea562d8c486eebd2707bcd193974078a2a47affc (diff)
mac802154: Drop IEEE802154_HW_RX_DROP_BAD_CKSUM
This IEEE802154_HW_RX_DROP_BAD_CKSUM flag was only used by hwsim to reflect the fact that it would not validate the checksum (FCS). So this was only useful while the only filtering level hwsim was capable of was "NONE". Now that the driver has been improved we no longer need this flag. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Alexander Aring <aahringo@redhat.com> Link: https://lore.kernel.org/r/20221007085310.503366-7-miquel.raynal@bootlin.com Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
-rw-r--r--drivers/net/ieee802154/mac802154_hwsim.c3
-rw-r--r--include/net/mac802154.h4
-rw-r--r--net/mac802154/rx.c7
3 files changed, 4 insertions, 10 deletions
diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c
index 75d802e0b685..1db7da3ccc1a 100644
--- a/drivers/net/ieee802154/mac802154_hwsim.c
+++ b/drivers/net/ieee802154/mac802154_hwsim.c
@@ -287,6 +287,7 @@ static int hwsim_hw_start(struct ieee802154_hw *hw)
struct hwsim_phy *phy = hw->priv;
phy->suspended = false;
+
return 0;
}
@@ -933,7 +934,7 @@ static int hwsim_add_one(struct genl_info *info, struct device *dev,
phy->idx = idx;
INIT_LIST_HEAD(&phy->edges);
- hw->flags = IEEE802154_HW_PROMISCUOUS | IEEE802154_HW_RX_DROP_BAD_CKSUM;
+ hw->flags = IEEE802154_HW_PROMISCUOUS;
hw->parent = dev;
err = ieee802154_register_hw(hw);
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 357d25ef627a..4a3a9de9da73 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -111,9 +111,6 @@ struct ieee802154_hw {
* promiscuous mode setting.
*
* @IEEE802154_HW_RX_OMIT_CKSUM: Indicates that receiver omits FCS.
- *
- * @IEEE802154_HW_RX_DROP_BAD_CKSUM: Indicates that receiver will not filter
- * frames with bad checksum.
*/
enum ieee802154_hw_flags {
IEEE802154_HW_TX_OMIT_CKSUM = BIT(0),
@@ -123,7 +120,6 @@ enum ieee802154_hw_flags {
IEEE802154_HW_AFILT = BIT(4),
IEEE802154_HW_PROMISCUOUS = BIT(5),
IEEE802154_HW_RX_OMIT_CKSUM = BIT(6),
- IEEE802154_HW_RX_DROP_BAD_CKSUM = BIT(7),
};
/* Indicates that receiver omits FCS and xmitter will add FCS on it's own. */
diff --git a/net/mac802154/rx.c b/net/mac802154/rx.c
index 8543c28948a0..80dd52bc6bf1 100644
--- a/net/mac802154/rx.c
+++ b/net/mac802154/rx.c
@@ -277,11 +277,8 @@ void ieee802154_rx(struct ieee802154_local *local, struct sk_buff *skb)
* IEEE802154_FILTERING_NONE level during a scan.
*/
- /* Check if transceiver doesn't validate the checksum.
- * If not we validate the checksum here.
- */
- if (local->hw.flags & IEEE802154_HW_RX_DROP_BAD_CKSUM ||
- local->phy->filtering == IEEE802154_FILTERING_NONE) {
+ /* Level 1 filtering: Check the FCS by software when relevant */
+ if (local->hw.phy->filtering == IEEE802154_FILTERING_NONE) {
crc = crc_ccitt(0, skb->data, skb->len);
if (crc) {
rcu_read_unlock();