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syscall: drop fallback to accept in Accept on Linux

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The minimum required Linux kernel version for Go 1.18 will be changed to
2.6.32, see #45964. The current minimum required version is 2.6.23 and
accept4 was added in 2.6.28, so the fallback to accept in Accept on
Linux can be removed.

For #45964

Change-Id: I78fc4e5b58417bbc540912c9dbf1b1b3db888fea
Reviewed-on: https://go-review.googlesource.com/c/go/+/346849
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Tobias Klauser 2021-09-01 15:50:27 +02:00 • committed by Tobias Klauser
parent 17e9d148d3
commit 6705191e02
1 changed files with 0 additions and 4 deletions
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4
src/syscall/syscall_linux.go
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@ -542,11 +542,7 @@ func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, error) {
func Accept(fd int) (nfd int, sa Sockaddr, err error) { func Accept(fd int) (nfd int, sa Sockaddr, err error) {
var rsa RawSockaddrAny var rsa RawSockaddrAny
var len _Socklen = SizeofSockaddrAny var len _Socklen = SizeofSockaddrAny
// Try accept4 first for Android, then try accept for kernel older than 2.6.28
nfd, err = accept4(fd, &rsa, &len, 0) nfd, err = accept4(fd, &rsa, &len, 0)
if err == ENOSYS {
nfd, err = accept(fd, &rsa, &len)
}
if err != nil { if err != nil {
return return
} }