From a84724178bd7081cf3bd5b558616dd6a9a4ca63b Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 6 May 2020 09:21:15 -0700 Subject: [PATCH] selftests: net: tcp_mmap: fix SO_RCVLOWAT setting Since chunk_size is no longer an integer, we can not use it directly as an argument of setsockopt(). This patch should fix tcp_mmap for Big Endian kernels. Fixes: 597b01edafac ("selftests: net: avoid ptl lock contention in tcp_mmap") Signed-off-by: Eric Dumazet Cc: Soheil Hassas Yeganeh Cc: Arjun Roy Acked-by: Soheil Hassas Yeganeh Signed-off-by: David S. Miller --- tools/testing/selftests/net/tcp_mmap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/tcp_mmap.c b/tools/testing/selftests/net/tcp_mmap.c index 62171fd638c8..4555f88252ba 100644 --- a/tools/testing/selftests/net/tcp_mmap.c +++ b/tools/testing/selftests/net/tcp_mmap.c @@ -282,12 +282,14 @@ static void setup_sockaddr(int domain, const char *str_addr, static void do_accept(int fdlisten) { pthread_attr_t attr; + int rcvlowat; pthread_attr_init(&attr); pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); + rcvlowat = chunk_size; if (setsockopt(fdlisten, SOL_SOCKET, SO_RCVLOWAT, - &chunk_size, sizeof(chunk_size)) == -1) { + &rcvlowat, sizeof(rcvlowat)) == -1) { perror("setsockopt SO_RCVLOWAT"); } -- 2.30.2