From 4384df18a317f5c103b7b5f653c2968eeda62a34 Mon Sep 17 00:00:00 2001
From: Marten Seemann <martenseemann@gmail.com>
Date: Sat, 1 Jul 2023 10:09:32 -0700
Subject: [PATCH] disable GSO unless QUIC_GO_ENABLE_GSO is set (#3934)

---
 .github/workflows/integration.yml | 4 ++--
 sys_conn_df_linux.go              | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index a7776c0a..b1638e5a 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -34,10 +34,10 @@ jobs:
       - name: Run self tests, using QUIC v2
         if: success() || failure() # run this step even if the previous one failed
         run: go run github.com/onsi/ginkgo/v2/ginkgo -r -v -randomize-all -randomize-suites -trace integrationtests/self -- -version=2 ${{ env.QLOGFLAG }}
-      - name: Run set tests, with GSO disabled
+      - name: Run set tests, with GSO enabled
         if: success() || failure() # run this step even if the previous one failed
         env:
-          QUIC_GO_DISABLE_GSO: true
+          QUIC_GO_ENABLE_GSO: true
         run: go run github.com/onsi/ginkgo/v2/ginkgo -r -v -randomize-all -randomize-suites -trace integrationtests/self -- -version=1 ${{ env.QLOGFLAG }}
       - name: Run tests (32 bit)
         if: success() || failure() # run this step even if the previous one failed
diff --git a/sys_conn_df_linux.go b/sys_conn_df_linux.go
index f027b47a..92f7e725 100644
--- a/sys_conn_df_linux.go
+++ b/sys_conn_df_linux.go
@@ -44,8 +44,8 @@ func setDF(rawConn syscall.RawConn) (bool, error) {
 }
 
 func maybeSetGSO(rawConn syscall.RawConn) bool {
-	disable, _ := strconv.ParseBool(os.Getenv("QUIC_GO_DISABLE_GSO"))
-	if disable {
+	enable, _ := strconv.ParseBool(os.Getenv("QUIC_GO_ENABLE_GSO"))
+	if !enable {
 		return false
 	}