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move QUIC_GO_DISABLE_GSO check out of init (#4041)

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* move QUIC_GO_DISABLE_GSO test out of init().

* Update sys_conn_helper_linux.go

---------

Co-authored-by: Marten Seemann <martenseemann@gmail.com>
This commit is contained in:
Jean-Francois Giorgi 2023-08-23 05:12:08 +02:00 • committed by GitHub
parent 824fd8a2f2
commit 8d91ad9fcd
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1 changed files with 2 additions and 10 deletions
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12
sys_conn_helper_linux.go
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@ -14,15 +14,6 @@ import (
"golang.org/x/sys/unix"
)
var gsoDisabled bool
func init() {
disabled, err := strconv.ParseBool(os.Getenv("QUIC_GO_DISABLE_GSO"))
if err == nil {
gsoDisabled = disabled
}
}
const (
msgTypeIPTOS = unix.IP_TOS
ipv4PKTINFO = unix.IP_PKTINFO
@ -65,7 +56,8 @@ func parseIPv4PktInfo(body []byte) (ip netip.Addr, ifIndex uint32, ok bool) {
// isGSOSupported tests if the kernel supports GSO.
// Sending with GSO might still fail later on, if the interface doesn't support it (see isGSOError).
func isGSOSupported(conn syscall.RawConn) bool {
if gsoDisabled {
disabled, err := strconv.ParseBool(os.Getenv("QUIC_GO_DISABLE_GSO"))
if err == nil && disabled {
return false
}
var serr error