net: ipa: be explicit about endianness

Sparse warns that the assignment of the metadata mask for a QMAP
endpoint in ipa_endpoint_init_hdr_metadata_mask() is a bad
assignment.  We know we want the mask value to be big endian, even
though the value we write is in host byte order.  Use a __force
tag to indicate we really mean it.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 9f4be98..448d89d 100644 (file)
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -588,7 +588,7 @@ static void ipa_endpoint_init_hdr_metadata_mask(struct ipa_endpoint *endpoint)
 
        /* Note that HDR_ENDIANNESS indicates big endian header fields */
        if (endpoint->data->qmap)
-               val = cpu_to_be32(IPA_ENDPOINT_QMAP_METADATA_MASK);
+               val = (__force u32)cpu_to_be32(IPA_ENDPOINT_QMAP_METADATA_MASK);
 
        iowrite32(val, endpoint->ipa->reg_virt + offset);
 }