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Makefile, tcp: Don't try to use tcpi_snd_wnd from tcp_info on pre-5.3 kernels

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Detect missing tcpi_snd_wnd in struct tcp_info at build time,
otherwise build fails with a pre-5.3 linux/tcp.h header.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2021-10-21 01:19:27 +02:00
parent a20626fb35
commit 849308d207
3 changed files with 15 additions and 1 deletions

2
tcp.h
View file

@ -67,7 +67,9 @@ struct tcp_ctx {
uint8_t port_to_init [USHRT_MAX / 8];
int ns_detect_ports;
struct timespec timer_run;
#ifdef HAS_SND_WND
int kernel_snd_wnd;
#endif
size_t pipe_size;
struct timespec refill_ts;
struct timespec port_detect_ts;