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 <edumazet@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Arjun Roy <arjunroy@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/net/tcp_mmap.c b/tools/testing/selftests/net/tcp_mmap.c
index 62171fd638c817dabe2d988f3cfae74522112584..4555f88252bafd31d6c225590316f03b08d3b132 100644 (file)
--- 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");
        }