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authorDave Barach <dave@barachs.net>2020-04-07 10:52:43 -0400
committerDave Wallace <dwallacelf@gmail.com>2020-04-13 15:02:16 +0000
commit4603e34497fa9511c8fbd83b78bc5cffdd6a8997 (patch)
tree2901078a2138139a6b4bc88b0de2b19a09093096 /src/vlib
parentd55f62f78888315c6caa58c9c7638c8109bb37cd (diff)
l2: handle complete clone fail in l2_flood
vlib_buffer_clone(...) may not manage to produce any buffer clones at all. vlib_buffer_clone_256 should not smash the original buffer reference count if no clones are produced. Type: fix Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I14d9d53637a220485c7a0036cfc75a4149b264ea (cherry picked from commit 95e19253320ab07748787f4c8a7620704563f6b8)
Diffstat (limited to 'src/vlib')
-rw-r--r--src/vlib/buffer_funcs.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/vlib/buffer_funcs.h b/src/vlib/buffer_funcs.h
index 58abdb18841..3db822f00ad 100644
--- a/src/vlib/buffer_funcs.h
+++ b/src/vlib/buffer_funcs.h
@@ -1172,11 +1172,11 @@ vlib_buffer_clone_256 (vlib_main_t * vm, u32 src_buffer, u32 * buffers,
d->next_buffer = src_buffer;
}
vlib_buffer_advance (s, head_end_offset);
- s->ref_count = n_buffers;
+ s->ref_count = n_buffers ? n_buffers : s->ref_count;
while (s->flags & VLIB_BUFFER_NEXT_PRESENT)
{
s = vlib_get_buffer (vm, s->next_buffer);
- s->ref_count = n_buffers;
+ s->ref_count = n_buffers ? n_buffers : s->ref_count;
}
return n_buffers;