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.6DmYu8eKQo and /tmp/tmp.RWpC6U6Fd4
Tree base:
87fb508ffbec ("vhost/vsock: add netns support")
Now at:
a16ba7f8fb9a ("selftests/vsock: improve logging in vmtest.sh")
 ====== Checking before the patch ======
Checking tools/testing/selftests/vsock/vmtest.sh - 3bbe24ed85577bc751e7e913126d8b44bb8554cc21519ace46c3118b1749f848


In vmtest.sh line 11:
readonly SCRIPT_DIR="$(cd -P -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
         ^--------^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In vmtest.sh line 12:
readonly KERNEL_CHECKOUT=$(realpath "${SCRIPT_DIR}"/../../../../)
         ^-------------^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In vmtest.sh line 26:
readonly QEMU_PIDFILE=$(mktemp /tmp/qemu_vsock_vmtest_XXXX.pid)
         ^----------^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In vmtest.sh line 46:
readonly LOG=$(mktemp /tmp/vsock_vmtest_XXXX.log)
         ^-^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In vmtest.sh line 178:
	pushd "${KERNEL_CHECKOUT}" &>/dev/null
        ^-- SC2164 (warning): Use 'pushd ... || exit' or 'pushd ... || return' in case pushd fails.

Did you mean: 
	pushd "${KERNEL_CHECKOUT}" &>/dev/null || exit


In vmtest.sh line 184:
	if ! make -j$(nproc); then
                    ^------^ SC2046 (warning): Quote this to prevent word splitting.


In vmtest.sh line 188:
	popd &>/dev/null
        ^--------------^ SC2164 (warning): Use 'popd ... || exit' or 'popd ... || return' in case popd fails.

Did you mean: 
	popd &>/dev/null || exit


In vmtest.sh line 210:
		${kernel_opt} \
                ^-----------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
		"${kernel_opt}" \


In vmtest.sh line 400:
	host_oops_cnt_after=$(dmesg | grep -i 'Oops' | wc -l)
                                      ^------------^ SC2126 (style): Consider using 'grep -c' instead of 'grep|wc -l'.


In vmtest.sh line 412:
	vm_oops_cnt_after=$(vm_ssh -- dmesg | grep -i 'Oops' | wc -l)
                                              ^------------^ SC2126 (style): Consider using 'grep -c' instead of 'grep|wc -l'.

For more information:
  https://www.shellcheck.net/wiki/SC2046 -- Quote this to prevent word splitt...
  https://www.shellcheck.net/wiki/SC2155 -- Declare and assign separately to ...
  https://www.shellcheck.net/wiki/SC2164 -- Use 'popd ... || exit' or 'popd ....

 ====== Checking the tree with the patch ======
Checking tools/testing/selftests/vsock/vmtest.sh - 3bbe24ed85577bc751e7e913126d8b44bb8554cc21519ace46c3118b1749f848


In vmtest.sh line 11:
readonly SCRIPT_DIR="$(cd -P -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
         ^--------^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In vmtest.sh line 12:
readonly KERNEL_CHECKOUT=$(realpath "${SCRIPT_DIR}"/../../../../)
         ^-------------^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In vmtest.sh line 26:
readonly QEMU_PIDFILE=$(mktemp /tmp/qemu_vsock_vmtest_XXXX.pid)
         ^----------^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In vmtest.sh line 46:
readonly LOG=$(mktemp /tmp/vsock_vmtest_XXXX.log)
         ^-^ SC2155 (warning): Declare and assign separately to avoid masking return values.


In vmtest.sh line 57:
readonly LOG_LEVEL_ERROR=3
         ^-------------^ SC2034 (warning): LOG_LEVEL_ERROR appears unused. Verify use (or export if used externally).


In vmtest.sh line 136:
	for dep in vng ${QEMU} busybox pkill ssh; do
                       ^-----^ SC2153 (info): Possible misspelling: QEMU may not be assigned. Did you mean qemu?


In vmtest.sh line 183:
	pushd "${KERNEL_CHECKOUT}" &>/dev/null
        ^-- SC2164 (warning): Use 'pushd ... || exit' or 'pushd ... || return' in case pushd fails.

Did you mean: 
	pushd "${KERNEL_CHECKOUT}" &>/dev/null || exit


In vmtest.sh line 189:
	if ! make -j$(nproc); then
                    ^------^ SC2046 (warning): Quote this to prevent word splitting.


In vmtest.sh line 193:
	popd &>/dev/null
        ^--------------^ SC2164 (warning): Use 'popd ... || exit' or 'popd ... || return' in case popd fails.

Did you mean: 
	popd &>/dev/null || exit


In vmtest.sh line 215:
		${kernel_opt} \
                ^-----------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 
		"${kernel_opt}" \


In vmtest.sh line 310:
	LOG_PREFIX=host log $@
                            ^-- SC2068 (error): Double quote array expansions to avoid re-splitting elements.


In vmtest.sh line 314:
	LOG_PREFIX=guest log $@
                             ^-- SC2068 (error): Double quote array expansions to avoid re-splitting elements.


In vmtest.sh line 317:
}
^-- SC1089 (error): Parsing stopped here. Is this keyword correctly matched up?

For more information:
  https://www.shellcheck.net/wiki/SC2068 -- Double quote array expansions to ...
  https://www.shellcheck.net/wiki/SC2034 -- LOG_LEVEL_ERROR appears unused. V...
  https://www.shellcheck.net/wiki/SC2046 -- Quote this to prevent word splitt...