Convert confirm_rx to little endian when enqueueing by using cpu_to_le32(), as big endian systems otherwise interpret the value incorrectly. When receiving, apply le32_to_cpu(). !! ensures the result becomes 0 or 1 in native CPU endianness, so this conversion is not strictly required, but it is kept for consistency, clarity, and future safety. Fixes: 5fdeb0d372ab ("net: qrtr: Implement outgoing flow control") Signed-off-by: Alexander Wilhelm --- net/qrtr/af_qrtr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/qrtr/af_qrtr.c b/net/qrtr/af_qrtr.c index 55fd2dd37588..bea1f1720e7f 100644 --- a/net/qrtr/af_qrtr.c +++ b/net/qrtr/af_qrtr.c @@ -365,7 +365,7 @@ static int qrtr_node_enqueue(struct qrtr_node *node, struct sk_buff *skb, } hdr->size = cpu_to_le32(len); - hdr->confirm_rx = !!confirm_rx; + hdr->confirm_rx = cpu_to_le32(!!confirm_rx); rc = skb_put_padto(skb, ALIGN(len, 4) + sizeof(*hdr)); @@ -466,7 +466,7 @@ int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len) cb->type = le32_to_cpu(v1->type); cb->src_node = le32_to_cpu(v1->src_node_id); cb->src_port = le32_to_cpu(v1->src_port_id); - cb->confirm_rx = !!v1->confirm_rx; + cb->confirm_rx = !!le32_to_cpu(v1->confirm_rx); cb->dst_node = le32_to_cpu(v1->dst_node_id); cb->dst_port = le32_to_cpu(v1->dst_port_id); --- base-commit: 0e4f8f1a3d081e834be5fd0a62bdb2554fadd307 change-id: 20260320-qrtr-fix-confirm_rx-on-big-endian-09a2c0e9af5d Best regards, -- Alexander Wilhelm