[PATCH V2 00/26] tools/perf: Fix shellcheck coding/formatting issues of perf tool shell scripts

[Athira Rajeev]

Patchset covers a set of fixes for coding/formatting issues observed while
running shellcheck tool on the perf shell scripts.

This cleanup is a pre-requisite to include a build option for shellcheck
discussed here: https://www.spinics.net/lists/linux-perf-users/msg25553.html
First set of patches were posted here:
https://lore.kernel.org/linux-perf-users/53B7D823-1570-4289-A632-2205EE2B522C@linux.vnet.ibm.com/T/#t

This patchset covers remaining set of shell scripts which needs
fix. Patch 1 is resubmission of patch 6 from the initial series.
Patch 15, 16 and 22 touches code from tools/perf/trace/beauty.
Other patches are fixes for scripts from tools/perf/tests.

The shellcheck is run for severity level for errors and warnings.
Command used:

# for F in $(find tests/shell/ -perm -o=x -name '*.sh'); do shellcheck -S warning $F; done
# echo $?
0

Changelog:
v1 -> v2:
  - Rebased on top of perf-tools-next from:
  https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/log/?h=perf-tools-next

  - Fixed shellcheck errors and warnings reported for newly
    added changes from perf-tools-next branch

  - Addressed review comment from James clark for patch 
    number 13 from V1. The changes in patch 13 were not necessary
    since the file "tests/shell/lib/coresight.sh" is sourced from
    other test files.

Akanksha J N (1):
  tools/perf/tests: Fix shellcheck warnings for
    trace+probe_vfs_getname.sh

Athira Rajeev (14):
  tools/perf/tests: fix test_arm_spe_fork.sh signal case issues
  tools/perf/tests: Fix unused variable references in
    stat+csv_summary.sh testcase
  tools/perf/tests: fix shellcheck warning for
    test_perf_data_converter_json.sh testcase
  tools/perf/tests: Fix shellcheck issue for stat_bpf_counters.sh
    testcase
  tools/perf/tests: Fix shellcheck issues in
    tests/shell/stat+shadow_stat.sh tetscase
  tools/perf/tests: Fix shellcheck warnings for
    thread_loop_check_tid_10.sh
  tools/perf/tests: Fix shellcheck warnings for unroll_loop_thread_10.sh
  tools/perf/tests: Fix shellcheck warnings for lib/probe_vfs_getname.sh
  tools/perf/tests: Fix the shellcheck warnings in lib/waiting.sh
  tools/perf/trace: Fix x86_arch_prctl.sh to address shellcheck warnings
  tools/perf/arch/x86: Fix syscalltbl.sh to address shellcheck warnings
  tools/perf/tests/shell: Fix the shellcheck warnings in
    record+zstd_comp_decomp.sh
  tools/perf/tests/shell: Fix shellcheck warning for stat+std_output.sh
    testcase
  tools/perf/tests: Fix shellcheck warning for stat+std_output.sh
    testcase

Kajol Jain (11):
  tools/perf/tests: Fix shellcheck warning for probe_vfs_getname.sh
    testcase
  tools/perf/tests: Fix shellcheck warning for record_offcpu.sh testcase
  tools/perf/tests: Fix shellcheck issue for lock_contention.sh testcase
  tools/perf/tests: Fix shellcheck issue for stat_bpf_counters_cgrp.sh
    testcase
  tools/perf/tests: Fix shellcheck warning for asm_pure_loop.sh shell
    script
  tools/perf/tests: Fix shellcheck warning for memcpy_thread_16k_10.sh
    shell script
  tools/perf/tests: Fix shellcheck warning for probe.sh shell script
  tools/perf/trace: Fix shellcheck issue for arch_errno_names.sh script
  tools/perf: Fix shellcheck issue for check-headers.sh script
  tools/shell/coresight: Fix shellcheck warning for
    thread_loop_check_tid_2.sh shell script
  tools/perf/tests/shell/lib: Fix shellcheck warning for stat_output.sh
    shell script

 .../arch/x86/entry/syscalls/syscalltbl.sh     |  2 +-
 tools/perf/check-headers.sh                   |  6 ++--
 .../tests/shell/coresight/asm_pure_loop.sh    |  2 +-
 .../shell/coresight/memcpy_thread_16k_10.sh   |  2 +-
 .../coresight/thread_loop_check_tid_10.sh     |  2 +-
 .../coresight/thread_loop_check_tid_2.sh      |  2 +-
 .../shell/coresight/unroll_loop_thread_10.sh  |  2 +-
 tools/perf/tests/shell/lib/probe.sh           |  1 +
 .../perf/tests/shell/lib/probe_vfs_getname.sh |  5 ++--
 tools/perf/tests/shell/lib/stat_output.sh     |  1 +
 tools/perf/tests/shell/lib/waiting.sh         |  1 +
 tools/perf/tests/shell/lock_contention.sh     | 12 ++++----
 tools/perf/tests/shell/probe_vfs_getname.sh   |  4 +--
 .../tests/shell/record+zstd_comp_decomp.sh    | 14 +++++-----
 tools/perf/tests/shell/record_offcpu.sh       |  6 ++--
 tools/perf/tests/shell/stat+csv_output.sh     |  2 +-
 tools/perf/tests/shell/stat+csv_summary.sh    |  4 +--
 tools/perf/tests/shell/stat+shadow_stat.sh    |  4 +--
 tools/perf/tests/shell/stat+std_output.sh     |  3 +-
 tools/perf/tests/shell/stat_bpf_counters.sh   |  4 +--
 .../tests/shell/stat_bpf_counters_cgrp.sh     | 28 ++++++++-----------
 tools/perf/tests/shell/test_arm_spe_fork.sh   |  2 +-
 .../shell/test_perf_data_converter_json.sh    |  2 +-
 .../tests/shell/trace+probe_vfs_getname.sh    |  6 ++--
 tools/perf/trace/beauty/arch_errno_names.sh   | 15 ++++------
 tools/perf/trace/beauty/x86_arch_prctl.sh     |  6 ++--
 26 files changed, 67 insertions(+), 71 deletions(-)

-- 
2.39.1