libwebsockets: Fix build with clang-20

Backport a needed patch from main branch upstream

Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 32 insertions, 1 deletions

diff --git a/meta-oe/recipes-connectivity/libwebsockets/libwebsockets/0001-sll_protocol-may-be-be16.patch b/meta-oe/recipes-connectivity/libwebsockets/libwebsockets/0001-sll_protocol-may-be-be16.patch
new file mode 100644
index 0000000000..c27644ef7d
--- /dev/null
+++ b/meta-oe/recipes-connectivity/libwebsockets/libwebsockets/0001-sll_protocol-may-be-be16.patch
@@ -0,0 +1,29 @@
+From 99e3ad14c60599e5d73e4d5597c95c3b91780547 Mon Sep 17 00:00:00 2001
+From: Andy Green <andy@warmcat.com>
+Date: Wed, 22 Jan 2025 10:08:55 +0000
+Subject: [PATCH] sll_protocol may be be16
+
+Google's fuzzer platform blows a warning
+
+/src/libwebsockets/lib/plat/unix/unix-sockets.c:497:21: warning: implicit conversion loses integer precision: 'uint32_t' (aka 'unsigned int') to '__be16' (aka 'unsigned short') [-Wimplicit-int-conversion]
+  497 |         sll.sll_protocol = (uint32_t)(htons((uint16_t)0x800));
+
+Upstream-Status: Backport [https://github.com/warmcat/libwebsockets/commit/2ffb8c6d5eaab509a133f3a6d922e170ae95dd59]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ lib/plat/unix/unix-sockets.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/plat/unix/unix-sockets.c b/lib/plat/unix/unix-sockets.c
+index 1a40c9cf..61292ff8 100644
+--- a/lib/plat/unix/unix-sockets.c
++++ b/lib/plat/unix/unix-sockets.c
+@@ -453,7 +453,7 @@ lws_plat_rawudp_broadcast(uint8_t *p, const uint8_t *canned, size_t canned_len,
+ 
+        memset(&sll, 0, sizeof(sll));
+        sll.sll_family = AF_PACKET;
+-       sll.sll_protocol = (uint32_t)(htons((uint16_t)0x800));
++       sll.sll_protocol = (uint16_t)(htons((uint16_t)0x800));
+        sll.sll_halen = 6;
+        sll.sll_ifindex = (int)if_nametoindex(iface);
+        memset(sll.sll_addr, 0xff, 6);
diff --git a/meta-oe/recipes-connectivity/libwebsockets/libwebsockets_4.3.5.bb b/meta-oe/recipes-connectivity/libwebsockets/libwebsockets_4.3.5.bb
index b7120a9975..4d6ec3b7ea 100644
--- a/meta-oe/recipes-connectivity/libwebsockets/libwebsockets_4.3.5.bb
+++ b/meta-oe/recipes-connectivity/libwebsockets/libwebsockets_4.3.5.bb
@@ -8,7 +8,9 @@ DEPENDS:append:class-native = " libcap-native"
 
 S = "${WORKDIR}/git"
 SRCREV = "ab9df9cfc39de7a49967f18387b6b76310947442"
-SRC_URI = "git://github.com/warmcat/libwebsockets.git;protocol=https;branch=v4.3-stable"
+SRC_URI = "git://github.com/warmcat/libwebsockets.git;protocol=https;branch=v4.3-stable \
+           file://0001-sll_protocol-may-be-be16.patch \
+           "
 
 UPSTREAM_CHECK_URI = "https://github.com/warmcat/${BPN}/releases"
 UPSTREAM_CHECK_GITTAGREGEX = "v(?P<pver>\d+(\.\d+)+)"