ShellCheck - shell script analysis tool
version: 0.10.0
license: GNU General Public License, version 3
website: https://www.shellcheck.net
Redirect to /tmp/tmp.kqZdplbMkP and /tmp/tmp.1SHoQCwgXn
Tree base:
540f77ab1630 ("sched: Add enqueue/dequeue of dualpi2 qdisc")
Now at:
e7b10a74076b ("selftests/tc-testing: Add selftests for qdisc DualPI2")
 ====== Checking before the patch ======
Checking tools/testing/selftests/tc-testing/tdc.sh - 602b16b107427091f2848fe8e3588d6a2c04584decb8ca60ec260ea130880a7f


 ====== Checking the tree with the patch ======
Checking tools/testing/selftests/tc-testing/tdc.sh - 602b16b107427091f2848fe8e3588d6a2c04584decb8ca60ec260ea130880a7f


In tdc.sh line 8:
   if [ $? -ne 0 ]; then
        ^-- SC2181 (style): Check exit code directly with e.g. 'if ! mycmd;', not indirectly with $?.


In tdc.sh line 71:
./tdc.py -J`nproc`
           ^-----^ SC2046 (warning): Quote this to prevent word splitting.
           ^-----^ SC2006 (style): Use $(...) notation instead of legacy backticks `...`.

Did you mean: 
./tdc.py -J$(nproc)

For more information:
  https://www.shellcheck.net/wiki/SC2046 -- Quote this to prevent word splitt...
  https://www.shellcheck.net/wiki/SC2006 -- Use $(...) notation instead of le...
  https://www.shellcheck.net/wiki/SC2181 -- Check exit code directly with e.g...