diff options
| author |   Benoît Ganne <bganne@cisco.com> | 2021-02-18 10:34:33 +0100 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2021-02-23 10:01:15 +0000 |
| commit | aa80f07209d85e3fa32d7c404f2d55cf97cf343f (patch) | |
| tree | a75591860ff9ae3507f2c97dbf6a79dcf763569f /src | |
| parent | 5fdc47c237b3e370dc18d3ed593ce3bd7c346110 (diff) | |
vlib: fix offload flags value reset
When a buffer is freed and re-allocated for a new packet, opaque2 is
not reset, so the offload flags can be set to a stale value.
Make sure the offload flags are reset to the current value on 1st set.
Type: fix
Fixes: 6809538e646bf86c000dc1faba60b0a4157ad898
Change-Id: I4048febedf25b9995dbd080a11495ee7dbe59153
Signed-off-by: Benoît Ganne <bganne@cisco.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/vnet/buffer.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/vnet/buffer.h b/src/vnet/buffer.h index fb734d5acde..bd70ea2722f 100644 --- a/src/vnet/buffer.h +++ b/src/vnet/buffer.h @@ -524,8 +524,17 @@ format_function_t format_vnet_buffer_offload; static_always_inline void vnet_buffer_offload_flags_set (vlib_buffer_t *b, u32 oflags) { - vnet_buffer2 (b)->oflags |= oflags; - b->flags |= VNET_BUFFER_F_OFFLOAD; + if (b->flags & VNET_BUFFER_F_OFFLOAD) + { + /* add a flag to existing offload */ + vnet_buffer2 (b)->oflags |= oflags; + } + else + { + /* no offload yet: reset offload flags to new value */ + vnet_buffer2 (b)->oflags = oflags; + b->flags |= VNET_BUFFER_F_OFFLOAD; + } } static_always_inline void |