Revert "net: ipa: disable checksum offload for IPA v4.5+"

This reverts commit c88c34fc.

The RMNet driver now supports inline checksum offload.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ipa/ipa_endpoint.c

@@ -88,11 +88,6 @@ static bool ipa_endpoint_data_valid_one(struct ipa *ipa, u32 count,
 	if (ipa_gsi_endpoint_data_empty(data))
 		return true;
 
-	/* IPA v4.5+ uses checksum offload, not yet supported by RMNet */
-	if (ipa->version >= IPA_VERSION_4_5)
-		if (data->endpoint.config.checksum)
-			return false;
-
 	if (!data->toward_ipa) {
 		if (data->endpoint.filter_support) {
 			dev_err(dev, "filtering not supported for "
@@ -235,17 +230,6 @@ static bool ipa_endpoint_data_valid(struct ipa *ipa, u32 count,
 static bool ipa_endpoint_data_valid(struct ipa *ipa, u32 count,
 				    const struct ipa_gsi_endpoint_data *data)
 {
-	const struct ipa_gsi_endpoint_data *dp = data;
-	enum ipa_endpoint_name name;
-
-	if (ipa->version < IPA_VERSION_4_5)
-		return true;
-
-	/* IPA v4.5+ uses checksum offload, not yet supported by RMNet */
-	for (name = 0; name < count; name++, dp++)
-		if (data->endpoint.config.checksum)
-			return false;
-
 	return true;
 }