linux-kernel - [PATCH net-next 2/2] Revert "net: ipa: disable checksum offload for IPA v4.5+"

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Date:   Wed,  2 Jun 2021 07:41:31 -0500
From:   Alex Elder <elder@...aro.org>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     bjorn.andersson@...aro.org, evgreen@...omium.org,
        cpratapa@...eaurora.org, subashab@...eaurora.org,
        sharathv@...eaurora.org, elder@...nel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH net-next 2/2] Revert "net: ipa: disable checksum offload for IPA v4.5+"

This reverts commit c88c34fcf8f501d588c0a999aa7e51e18552c5f0.

The RMNet driver now supports inline checksum offload.

Signed-off-by: Alex Elder <elder@...aro.org>
---
 drivers/net/ipa/ipa_endpoint.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 03719fb6a15a4..07a81b73306fe 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/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;
 }
 
-- 
2.27.0