[Devel] [PATCH RHEL10 COMMIT] ms/selftest: net: fix socklen_t type mismatch in sctp_collision test

[Konstantin Khorenko]

The commit is pushed to "branch-rh10-6.12.0-55.52.1.4.x.vz10-ovz" and will appear at git at bitbucket.org:openvz/vzkernel.git
after rh10-6.12.0-55.52.1.4.11.vz10
------>
commit 34980b16589f899f05e0d6fb87926a1074ea8aa5
Author: Ankit Khushwaha <ankitkhushwaha.linux at gmail.com>
Date:   Mon Mar 23 18:07:34 2026 +0100

    ms/selftest: net: fix socklen_t type mismatch in sctp_collision test
    
    Socket APIs like recvfrom(), accept(), and getsockname() expect socklen_t*
    arg, but tests were using int variables. This causes -Wpointer-sign
    warnings on platforms where socklen_t is unsigned.
    
    Change the variable type from int to socklen_t to resolve the warning and
    ensure type safety across platforms.
    
    warning fixed:
    
    sctp_collision.c:62:70: warning: passing 'int *' to parameter of
    type 'socklen_t *' (aka 'unsigned int *') converts between pointers to
    integer types with different sign [-Wpointer-sign]
       62 |                 ret = recvfrom(sd, buf, sizeof(buf),
                                                                            0, (struct sockaddr *)&daddr, &len);
          |                                                           ^~~~
    /usr/include/sys/socket.h:165:27: note: passing argument to
    parameter '__addr_len' here
      165 |                          socklen_t *__restrict __addr_len);
          |                                                ^
    
    Reviewed-by: Muhammad Usama Anjum <usama.anjum at collabora.com>
    Signed-off-by: Ankit Khushwaha <ankitkhushwaha.linux at gmail.com>
    Reviewed-by: Simon Horman <horms at kernel.org>
    Link: https://patch.msgid.link/20251028172947.53153-1-ankitkhushwaha.linux@gmail.com
    Signed-off-by: Jakub Kicinski <kuba at kernel.org>
    
    (cherry picked from commit afb8f6567a5b4bb4e673608048939fef854b8709)
    Applied cleanly.
    
    https://virtuozzo.atlassian.net/browse/VSTOR-127529
    Signed-off-by: Konstantin Khorenko <khorenko at virtuozzo.com>
    Reviewed-by: Pavel Tikhomirov <ptikhomirov at virtuozzo.com>
    Reviewed-by: Vasileios Almpanis <vasileios.almpanis at virtuozzo.com>
    
    Feature: fix selftests
---
 tools/testing/selftests/net/netfilter/sctp_collision.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/netfilter/sctp_collision.c b/tools/testing/selftests/net/netfilter/sctp_collision.c
index 21bb1cfd8a856..b282d1785c9b0 100644
--- a/tools/testing/selftests/net/netfilter/sctp_collision.c
+++ b/tools/testing/selftests/net/netfilter/sctp_collision.c
@@ -9,9 +9,10 @@
 int main(int argc, char *argv[])
 {
 	struct sockaddr_in saddr = {}, daddr = {};
-	int sd, ret, len = sizeof(daddr);
+	socklen_t len = sizeof(daddr);
 	struct timeval tv = {25, 0};
 	char buf[] = "hello";
+	int sd, ret;
 
 	if (argc != 6 || (strcmp(argv[1], "server") && strcmp(argv[1], "client"))) {
 		printf("%s <server|client> <LOCAL_IP> <LOCAL_PORT> <REMOTE_IP> <REMOTE_PORT>\n",