ERROR: code indent should use tabs where possible
#54: FILE: fs/libfs.c:659:
+                           void (*callback)(struct dentry *))$

WARNING: please, no spaces at the start of a line
#54: FILE: fs/libfs.c:659:
+                           void (*callback)(struct dentry *))$

CHECK: extern prototypes should be avoided in .h files
#77: FILE: include/linux/fs.h:3634:
+extern void simple_remove_by_name(struct dentry *, const char *,

WARNING: function definition argument 'struct dentry *' should also have an identifier name
#77: FILE: include/linux/fs.h:3634:
+extern void simple_remove_by_name(struct dentry *, const char *,

WARNING: function definition argument 'const char *' should also have an identifier name
#77: FILE: include/linux/fs.h:3634:
+extern void simple_remove_by_name(struct dentry *, const char *,

ERROR: code indent should use tabs where possible
#78: FILE: include/linux/fs.h:3635:
+                              void (*callback)(struct dentry *));$

CHECK: Alignment should match open parenthesis
#78: FILE: include/linux/fs.h:3635:
+extern void simple_remove_by_name(struct dentry *, const char *,
+                              void (*callback)(struct dentry *));

WARNING: please, no spaces at the start of a line
#78: FILE: include/linux/fs.h:3635:
+                              void (*callback)(struct dentry *));$

total: 2 errors, 4 warnings, 2 checks, 46 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.

NOTE: Whitespace errors detected.
      You may wish to use scripts/cleanpatch or scripts/cleanfile

Commit 533f922c4e60 ("new helper: simple_remove_by_name()") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES 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.