CHECK: struct mutex definition without comment
#61: FILE: include/linux/bpf.h:1730:
+	struct mutex st_ops_assoc_mutex;

WARNING: line length of 87 exceeds 80 columns
#80: FILE: include/linux/bpf.h:2084:
+static inline int bpf_prog_assoc_struct_ops(struct bpf_prog *prog, struct bpf_map *map)

CHECK: Please use a blank line after function/struct/union/enum declarations
#80: FILE: include/linux/bpf.h:2084:
 }
+static inline int bpf_prog_assoc_struct_ops(struct bpf_prog *prog, struct bpf_map *map)

CHECK: Please use a blank line after function/struct/union/enum declarations
#84: FILE: include/linux/bpf.h:2088:
+}
+static inline void bpf_prog_disassoc_struct_ops(struct bpf_prog *prog)

WARNING: line length of 81 exceeds 80 columns
#87: FILE: include/linux/bpf.h:2091:
+static inline void *bpf_prog_get_assoc_struct_ops(const struct bpf_prog_aux *aux)

CHECK: Please use a blank line after function/struct/union/enum declarations
#87: FILE: include/linux/bpf.h:2091:
+}
+static inline void *bpf_prog_get_assoc_struct_ops(const struct bpf_prog_aux *aux)

WARNING: please, no space before tabs
#103: FILE: include/uapi/linux/bpf.h:922:
+ * ^IDescription$

WARNING: please, no space before tabs
#104: FILE: include/uapi/linux/bpf.h:923:
+ * ^I^IAssociate a BPF program with a struct_ops map. The struct_ops$

WARNING: please, no space before tabs
#105: FILE: include/uapi/linux/bpf.h:924:
+ * ^I^Imap is identified by *map_fd* and the BPF program is$

WARNING: please, no space before tabs
#106: FILE: include/uapi/linux/bpf.h:925:
+ * ^I^Iidentified by *prog_fd*.$

WARNING: please, no space before tabs
#108: FILE: include/uapi/linux/bpf.h:927:
+ * ^IReturn$

WARNING: please, no space before tabs
#109: FILE: include/uapi/linux/bpf.h:928:
+ * ^I^I0 on success or -1 if an error occurred (in which case,$

WARNING: please, no space before tabs
#110: FILE: include/uapi/linux/bpf.h:929:
+ * ^I^I*errno* is set appropriately).$

WARNING: line length of 90 exceeds 80 columns
#162: FILE: kernel/bpf/bpf_struct_ops.c:815:
+		/* Poison pointer on error instead of return for backward compatibility */

WARNING: line length of 98 exceeds 80 columns
#188: FILE: kernel/bpf/bpf_struct_ops.c:1420:
+						 lockdep_is_held(&prog->aux->st_ops_assoc_mutex));

WARNING: line length of 84 exceeds 80 columns
#199: FILE: kernel/bpf/bpf_struct_ops.c:1431:
+		 * struct_ops map does not track associated non-struct_ops programs.

WARNING: line length of 98 exceeds 80 columns
#218: FILE: kernel/bpf/bpf_struct_ops.c:1450:
+						 lockdep_is_held(&prog->aux->st_ops_assoc_mutex));

WARNING: line length of 85 exceeds 80 columns
#243: FILE: kernel/bpf/bpf_struct_ops.c:1475:
+	st_ops_assoc = rcu_dereference_check(aux->st_ops_assoc, bpf_rcu_lock_held());

WARNING: please, no space before tabs
#357: FILE: tools/include/uapi/linux/bpf.h:922:
+ * ^IDescription$

WARNING: please, no space before tabs
#358: FILE: tools/include/uapi/linux/bpf.h:923:
+ * ^I^IAssociate a BPF program with a struct_ops map. The struct_ops$

WARNING: please, no space before tabs
#359: FILE: tools/include/uapi/linux/bpf.h:924:
+ * ^I^Imap is identified by *map_fd* and the BPF program is$

WARNING: please, no space before tabs
#360: FILE: tools/include/uapi/linux/bpf.h:925:
+ * ^I^Iidentified by *prog_fd*.$

WARNING: please, no space before tabs
#362: FILE: tools/include/uapi/linux/bpf.h:927:
+ * ^IReturn$

WARNING: please, no space before tabs
#363: FILE: tools/include/uapi/linux/bpf.h:928:
+ * ^I^I0 on success or -1 if an error occurred (in which case,$

WARNING: please, no space before tabs
#364: FILE: tools/include/uapi/linux/bpf.h:929:
+ * ^I^I*errno* is set appropriately).$

total: 0 errors, 21 warnings, 4 checks, 295 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 d85ed106ecb4 ("bpf: Support associating BPF program with struct_ops") 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.
total: 0 errors, 21 warnings, 4 checks, 295 lines checked