Convert the u32 variable to type u64 in a context where expression of
type u64 is required to avoid potential overflow.
Fixes: e9e3720002f6 ("net: stmmac: ptp: update tas basetime after ptp adjust")
Signed-off-by: Xiaoliang Yang <[email protected]>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
index 580cc035536b..be9b58b2abf9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
@@ -102,7 +102,7 @@ static int stmmac_adjust_time(struct ptp_clock_info *ptp, s64 delta)
time.tv_nsec = priv->plat->est->btr_reserve[0];
time.tv_sec = priv->plat->est->btr_reserve[1];
basetime = timespec64_to_ktime(time);
- cycle_time = priv->plat->est->ctr[1] * NSEC_PER_SEC +
+ cycle_time = (u64)priv->plat->est->ctr[1] * NSEC_PER_SEC +
priv->plat->est->ctr[0];
time = stmmac_calc_tas_basetime(basetime,
current_time_ns,
--
2.17.1
Hello:
This patch was applied to netdev/net.git (master)
by Jakub Kicinski <[email protected]>:
On Thu, 23 Dec 2021 15:39:28 +0800 you wrote:
> Convert the u32 variable to type u64 in a context where expression of
> type u64 is required to avoid potential overflow.
>
> Fixes: e9e3720002f6 ("net: stmmac: ptp: update tas basetime after ptp adjust")
> Signed-off-by: Xiaoliang Yang <[email protected]>
> ---
> drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Here is the summary with links:
- [net] net: stmmac: ptp: fix potentially overflowing expression
https://git.kernel.org/netdev/net/c/eccffcf4657a
You are awesome, thank you!
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