Hello Dmitry,
On 08.05.24 13:40, Dmitry Antipov wrote:
Since 'symbol_duration' of 'struct wpan_phy' is in nanoseconds but
'lifs_period' and 'sifs_period' are both in microseconds, fix time
calculation in 'ieee802154_configure_durations()' and use convenient
'NSEC_PER_USEC' in 'ieee802154_setup_wpan_phy_pib()' as well.
Compile tested only.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Dmitry Antipov <dmantipov@xxxxxxxxx>
---
net/mac802154/main.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/net/mac802154/main.c b/net/mac802154/main.c
index 9ab7396668d2..21b7c3b280b4 100644
--- a/net/mac802154/main.c
+++ b/net/mac802154/main.c
@@ -161,8 +161,10 @@ void ieee802154_configure_durations(struct wpan_phy *phy,
}
phy->symbol_duration = duration;
- phy->lifs_period = (IEEE802154_LIFS_PERIOD * phy->symbol_duration) / NSEC_PER_SEC;
- phy->sifs_period = (IEEE802154_SIFS_PERIOD * phy->symbol_duration) / NSEC_PER_SEC;
+ phy->lifs_period =
+ (IEEE802154_LIFS_PERIOD * phy->symbol_duration) / NSEC_PER_USEC;
+ phy->sifs_period =
+ (IEEE802154_SIFS_PERIOD * phy->symbol_duration) / NSEC_PER_USEC;
}
EXPORT_SYMBOL(ieee802154_configure_durations);
@@ -184,10 +186,10 @@ static void ieee802154_setup_wpan_phy_pib(struct wpan_phy *wpan_phy)
* Should be done when all drivers sets this value.
*/
- wpan_phy->lifs_period =
- (IEEE802154_LIFS_PERIOD * wpan_phy->symbol_duration) / 1000;
- wpan_phy->sifs_period =
- (IEEE802154_SIFS_PERIOD * wpan_phy->symbol_duration) / 1000;
+ wpan_phy->lifs_period = (IEEE802154_LIFS_PERIOD *
+ wpan_phy->symbol_duration) / NSEC_PER_USEC;
+ wpan_phy->sifs_period = (IEEE802154_SIFS_PERIOD *
+ wpan_phy->symbol_duration) / NSEC_PER_USEC;
}
int ieee802154_register_hw(struct ieee802154_hw *hw)
I added a Fixes tag for you here before pushing so stable can decide if
they want to pick this.
This patch has been applied to the wpan tree and will be
part of the next pull request to net. Thanks!
regards
Stefan Schmidt
