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selftests: bpf: Don't try to read files without read permission

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Recently couple of files that are write only were added to netdevsim
debugfs. Don't read these files and avoid error.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
This commit is contained in:
Jiri Pirko 2019-10-15 12:00:56 +02:00 committed by Alexei Starovoitov
parent 95fbda1e37
commit 5bc60de50d
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/bpf/test_offload.py
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@ -312,7 +312,7 @@ class DebugfsDir:
if f == "ports":
continue
p = os.path.join(path, f)
if os.path.isfile(p):
if os.path.isfile(p) and os.access(p, os.R_OK):
_, out = cmd('cat %s/%s' % (path, f))
dfs[f] = out.strip()
elif os.path.isdir(p):