selftests: bpf: Skip write only files in debugfs
DebugFS for netdevsim now contains some "action trigger" files
which are write only. Don't try to capture the contents of those.
Note that we can't use os.access() because the script requires
root.
Fixes: 4418f862d6
("netdevsim: implement support for devlink region and snapshots")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -22,6 +22,7 @@ import os
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import pprint
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import pprint
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import random
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import random
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import re
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import re
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import stat
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import string
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import string
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import struct
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import struct
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import subprocess
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import subprocess
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@ -311,7 +312,11 @@ class DebugfsDir:
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for f in out.split():
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for f in out.split():
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if f == "ports":
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if f == "ports":
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continue
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continue
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p = os.path.join(path, f)
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p = os.path.join(path, f)
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if not os.stat(p).st_mode & stat.S_IRUSR:
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continue
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if os.path.isfile(p):
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if os.path.isfile(p):
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_, out = cmd('cat %s/%s' % (path, f))
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_, out = cmd('cat %s/%s' % (path, f))
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dfs[f] = out.strip()
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dfs[f] = out.strip()
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