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[bpf,7/7] selftests/bpf/test_offload.py: filter bpftool internal map when counting maps

Message ID 160703132473.162669.16627304955343580502.stgit@toke.dk (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series selftests/bpf: Restore test_offload.py to working order | expand

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netdev/cover_letter success Link
netdev/fixes_present fail Series targets non-next tree, but doesn't contain any Fixes tags
netdev/patch_count success Link
netdev/tree_selection success Clearly marked for bpf
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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 19 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
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netdev/stable success Stable not CCed

Commit Message

Toke Høiland-Jørgensen Dec. 3, 2020, 9:35 p.m. UTC 
From: Toke Høiland-Jørgensen <toke@redhat.com>

A few of the tests in test_offload.py expects to see a certain number of
maps created, and checks this by counting the number of maps returned by
bpftool. There is already a filter that will remove any maps already there
at the beginning of the test, but bpftool now creates a map for the PID
iterator rodata on each invocation, which makes the map count wrong. Fix
this by also filtering the pid_iter.rodata map by name when counting.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
---
 tools/testing/selftests/bpf/test_offload.py |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/test_offload.py b/tools/testing/selftests/bpf/test_offload.py
index f861503433c9..be2c7e3f57c4 100755
--- a/tools/testing/selftests/bpf/test_offload.py
+++ b/tools/testing/selftests/bpf/test_offload.py
@@ -184,9 +184,7 @@  def bpftool_prog_list(expected=None, ns=""):
 def bpftool_map_list(expected=None, ns=""):
     _, maps = bpftool("map show", JSON=True, ns=ns, fail=True)
     # Remove the base maps
-    for m in base_maps:
-        if m in maps:
-            maps.remove(m)
+    maps = [m for m in maps if m not in base_maps and m.get('name') not in base_map_names]
     if expected is not None:
         if len(maps) != expected:
             fail(True, "%d BPF maps loaded, expected %d" %
@@ -764,6 +762,9 @@  ret, progs = bpftool("prog", fail=False)
 skip(ret != 0, "bpftool not installed")
 base_progs = progs
 _, base_maps = bpftool("map")
+base_map_names = [
+    'pid_iter.rodata' # created on each bpftool invocation
+]
 
 # Check netdevsim
 ret, out = cmd("modprobe netdevsim", fail=False)