diff options
| author | Mark Brown <broonie@kernel.org> | 2024-06-23 13:14:18 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-06-23 13:14:18 +0100 |
| commit | 17436001a6bc42c7f55dc547ca5b1a873208d91d (patch) | |
| tree | 186b872edc5080b90ef1f8fb88f774d4f242775f /net/ipv4/tcp_timer.c | |
| parent | 5d0c35feea339e4a3a9c9e99731e4d49ad5ee329 (diff) | |
| parent | d4a0055fdc22381fa256e345095e88d134e354c5 (diff) | |
spi: add devm_spi_optimize_message() helper
Merge series from David Lechner <dlechner@baylibre.com>:
In the IIO subsystem, we are finding that it is common to call
spi_optimize_message() during driver probe since the SPI message
doesn't change for the lifetime of the driver. This patch adds a
devm_spi_optimize_message() helper to simplify this common pattern.
Diffstat (limited to 'net/ipv4/tcp_timer.c')
| -rw-r--r-- | net/ipv4/tcp_timer.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index 83fe7f62f7f1..5bfd76a31af6 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -485,8 +485,12 @@ static bool tcp_rtx_probe0_timed_out(const struct sock *sk, { const struct tcp_sock *tp = tcp_sk(sk); const int timeout = TCP_RTO_MAX * 2; - u32 rcv_delta; + s32 rcv_delta; + /* Note: timer interrupt might have been delayed by at least one jiffy, + * and tp->rcv_tstamp might very well have been written recently. + * rcv_delta can thus be negative. + */ rcv_delta = inet_csk(sk)->icsk_timeout - tp->rcv_tstamp; if (rcv_delta <= timeout) return false; |