rxrpc: Fix _usecs_to_jiffies() by using usecs_to_jiffies()

[ Upstream commit acde891c24 ]

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: c410bf0193 ("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>
This commit is contained in:
Jiasheng Jiang 2021-09-24 03:18:37 +00:00 committed by Greg Kroah-Hartman
parent d4cd7a167c
commit 674637270e

View file

@ -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)