From: Jiasheng Jiang jiasheng@iscas.ac.cn
[ Upstream commit acde891c243c1ed85b19d4d5042bdf00914f5739 ]
Directly using _usecs_to_jiffies() might be unsafe, so it's better to use usecs_to_jiffies() instead. Because we can see that the result of _usecs_to_jiffies() could be larger than MAX_JIFFY_OFFSET values without the check of the input.
Fixes: c410bf01933e ("Fix the excessive initial retransmission timeout") Signed-off-by: Jiasheng Jiang jiasheng@iscas.ac.cn Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/rxrpc/rtt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/rxrpc/rtt.c b/net/rxrpc/rtt.c index 928d8b34a3eee..f3f87c9f0209d 100644 --- a/net/rxrpc/rtt.c +++ b/net/rxrpc/rtt.c @@ -23,7 +23,7 @@ static u32 rxrpc_rto_min_us(struct rxrpc_peer *peer)
static u32 __rxrpc_set_rto(const struct rxrpc_peer *peer) { - return _usecs_to_jiffies((peer->srtt_us >> 3) + peer->rttvar_us); + return usecs_to_jiffies((peer->srtt_us >> 3) + peer->rttvar_us); }
static u32 rxrpc_bound_rto(u32 rto)