mirror-linux/include
Patrick Rohr 195624d9c2 tun: support not enabling carrier in TUNSETIFF
This change adds support for not enabling carrier during TUNSETIFF
interface creation by specifying the IFF_NO_CARRIER flag.

Our tests make heavy use of tun interfaces. In some scenarios, the test
process creates the interface but another process brings it up after the
interface is discovered via netlink notification. In that case, it is
not possible to create a tun/tap interface with carrier off without it
racing against the bring up. Immediately setting carrier off via
TUNSETCARRIER is still too late.

Signed-off-by: Patrick Rohr <prohr@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Maciej Żenczykowski <maze@google.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-23 12:02:03 +01:00
..
acpi Merge branch 'acpi-properties' 2022-08-11 19:21:03 +02:00
asm-generic asm-generic: Conditionally enable do_softirq_own_stack() via Kconfig. 2022-09-05 17:20:55 +02:00
clocksource
crypto
drm drm/edid: Handle EDID 1.4 range descriptor h/vfreq offsets 2022-09-02 16:38:51 +03:00
dt-bindings power supply and reset changes for the v6.0 series 2022-08-12 09:37:33 -07:00
keys
kunit kunit: fix assert_type for comparison macros 2022-09-01 13:00:32 -06:00
kvm
linux Revert "iommu/vt-d: Fix possible recursive locking in intel_iommu_init()" 2022-09-21 10:22:54 +02:00
math-emu
media
memory
misc
net bluetooth pull request for net: 2022-09-19 18:01:04 -07:00
pcmcia
ras
rdma
rv
scsi scsi: core: Fix a use-after-free 2022-09-01 01:02:10 -04:00
soc AT91 fixes for 6.0 2022-09-02 11:29:03 +02:00
sound
target
trace net: skb: export skb drop reaons to user by TRACE_DEFINE_ENUM 2022-09-07 15:28:08 +01:00
uapi tun: support not enabling carrier in TUNSETIFF 2022-09-23 12:02:03 +01:00
ufs scsi: ufs: core: Enable link lost interrupt 2022-08-11 22:04:32 -04:00
vdso
video
xen x86/xen: Add support for HVMOP_set_evtchn_upcall_vector 2022-08-12 11:28:21 +02:00