--- /dev/null
+From 9c1292eca243821249fa99f40175b0660d9329e3 Mon Sep 17 00:00:00 2001
+From: Martin KaFai Lau <martin.lau@kernel.org>
+Date: Fri, 13 Oct 2023 11:57:02 -0700
+Subject: net/bpf: Avoid unused "sin_addr_len" warning when CONFIG_CGROUP_BPF is not set
+
+From: Martin KaFai Lau <martin.lau@kernel.org>
+
+commit 9c1292eca243821249fa99f40175b0660d9329e3 upstream.
+
+It was reported that there is a compiler warning on the unused variable
+"sin_addr_len" in af_inet.c when CONFIG_CGROUP_BPF is not set.
+This patch is to address it similar to the ipv6 counterpart
+in inet6_getname(). It is to "return sin_addr_len;"
+instead of "return sizeof(*sin);".
+
+Fixes: fefba7d1ae19 ("bpf: Propagate modified uaddrlen from cgroup sockaddr programs")
+Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
+Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
+Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
+Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
+Link: https://lore.kernel.org/bpf/20231013185702.3993710-1-martin.lau@linux.dev
+Closes: https://lore.kernel.org/bpf/20231013114007.2fb09691@canb.auug.org.au/
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/ipv4/af_inet.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/net/ipv4/af_inet.c
++++ b/net/ipv4/af_inet.c
+@@ -823,7 +823,7 @@ int inet_getname(struct socket *sock, st
+ }
+ release_sock(sk);
+ memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
+- return sizeof(*sin);
++ return sin_addr_len;
+ }
+ EXPORT_SYMBOL(inet_getname);
+