WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#23: 
new file mode 100644

CHECK: Comparison to NULL could be written "!nsim_dir"
#83: FILE: tools/testing/selftests/net/netdevsim.c:56:
+	if (nsim_dir == NULL) {

CHECK: Comparison to NULL could be written "entry"
#90: FILE: tools/testing/selftests/net/netdevsim.c:63:
+		if (entry != NULL &&

CHECK: Comparison to NULL could be written "entry"
#95: FILE: tools/testing/selftests/net/netdevsim.c:68:
+	} while (entry != NULL);

CHECK: Comparison to NULL could be written "!nsim_dev_dir"
#150: FILE: tools/testing/selftests/net/netdevsim.c:123:
+	if (nsim_dev_dir == NULL) {

CHECK: Comparison to NULL could be written "entry"
#157: FILE: tools/testing/selftests/net/netdevsim.c:130:
+		if (entry != NULL && entry->d_name[0] != '.')

CHECK: Comparison to NULL could be written "entry"
#160: FILE: tools/testing/selftests/net/netdevsim.c:133:
+	} while (entry != NULL);

CHECK: Comparison to NULL could be written "!entry"
#162: FILE: tools/testing/selftests/net/netdevsim.c:135:
+	if (entry == NULL || entry->d_name[0] == '.') {

CHECK: Comparison to NULL could be written "!nsim_dev_link"
#182: FILE: tools/testing/selftests/net/netdevsim.c:155:
+	if (nsim_dev_link == NULL)

total: 0 errors, 1 warnings, 8 checks, 391 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 9e5c8c577121 ("selftests/net: add netdevsim.c") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 1 warnings, 8 checks, 391 lines checked