CHECK: Please don't use multiple blank lines
#96: FILE: kernel/bpf/core.c:106:
+
+

CHECK: Please don't use multiple blank lines
#102: FILE: kernel/bpf/core.c:112:
+
+

WARNING: const array should probably be static const
#112: FILE: kernel/bpf/core.c:122:
+	const char prefix[] = "btf_trace_";

WARNING: line length of 90 exceeds 80 columns
#181: FILE: kernel/bpf/core.c:191:
+					       ? aux->func[subprog]->aux->changes_pkt_data

WARNING: line length of 83 exceeds 80 columns
#183: FILE: kernel/bpf/core.c:193:
+			if (prog->aux->changes_pkt_data && !tgt_changes_pkt_data) {

WARNING: line length of 94 exceeds 80 columns
#205: FILE: kernel/bpf/core.c:215:
+				 * Target program is an fentry/fexit which is already attached

WARNING: line length of 85 exceeds 80 columns
#206: FILE: kernel/bpf/core.c:216:
+				 * to another tracing program. More levels of nesting

WARNING: line length of 100 exceeds 80 columns
#209: FILE: kernel/bpf/core.c:219:
+				bpf_log(log, "Cannot nest tracing program attach more than once\n");

WARNING: line length of 87 exceeds 80 columns
#214: FILE: kernel/bpf/core.c:224:
+			 * To avoid potential call chain cycles, prevent attaching of a

WARNING: line length of 84 exceeds 80 columns
#215: FILE: kernel/bpf/core.c:225:
+			 * program extension to another extension. It's ok to attach

WARNING: line length of 81 exceeds 80 columns
#229: FILE: kernel/bpf/core.c:239:
+			 * type. When extension program is replacing XDP function

WARNING: line length of 82 exceeds 80 columns
#234: FILE: kernel/bpf/core.c:244:
+			 * fentry/fexit was allowed it would be possible to create

WARNING: line length of 87 exceeds 80 columns
#262: FILE: kernel/bpf/core.c:272:
+			bpf_log(log, "attach_btf_id %u points to wrong type name %s\n",

WARNING: line length of 99 exceeds 80 columns
#268: FILE: kernel/bpf/core.c:278:
+		/* The func_proto of "btf_trace_##tname" is generated from typedef without argument

WARNING: line length of 87 exceeds 80 columns
#274: FILE: kernel/bpf/core.c:284:
+		fname = kallsyms_lookup((unsigned long)btp->bpf_func, NULL, NULL, NULL,

WARNING: line length of 100 exceeds 80 columns
#282: FILE: kernel/bpf/core.c:292:
+			bpf_log(log, "Cannot find btf of tracepoint template, fall back to %s%s.\n",

WARNING: line length of 84 exceeds 80 columns
#310: FILE: kernel/bpf/core.c:320:
+		ret = btf_distill_func_proto(log, btf, t, tname, &tgt_info->fmodel);

WARNING: line length of 91 exceeds 80 columns
#335: FILE: kernel/bpf/core.c:345:
+		if ((prog->aux->saved_dst_prog_type || prog->aux->saved_dst_attach_type) &&

WARNING: line length of 85 exceeds 80 columns
#336: FILE: kernel/bpf/core.c:346:
+		    (!tgt_prog || prog->aux->saved_dst_prog_type != tgt_prog->type ||

WARNING: line length of 89 exceeds 80 columns
#337: FILE: kernel/bpf/core.c:347:
+		     prog->aux->saved_dst_attach_type != tgt_prog->expected_attach_type))

WARNING: line length of 84 exceeds 80 columns
#343: FILE: kernel/bpf/core.c:353:
+		ret = btf_distill_func_proto(log, btf, t, tname, &tgt_info->fmodel);

CHECK: No space is necessary after a cast
#349: FILE: kernel/bpf/core.c:359:
+				addr = (long) tgt_prog->bpf_func;

WARNING: line length of 85 exceeds 80 columns
#351: FILE: kernel/bpf/core.c:361:
+				addr = (long) tgt_prog->aux->func[subprog]->bpf_func;

CHECK: No space is necessary after a cast
#351: FILE: kernel/bpf/core.c:361:
+				addr = (long) tgt_prog->aux->func[subprog]->bpf_func;

WARNING: line length of 86 exceeds 80 columns
#356: FILE: kernel/bpf/core.c:366:
+					addr = find_kallsyms_symbol_value(mod, tname);

WARNING: line length of 91 exceeds 80 columns
#376: FILE: kernel/bpf/core.c:386:
+				/* fentry/fexit/fmod_ret progs can be sleepable if they are

WARNING: line length of 93 exceeds 80 columns
#377: FILE: kernel/bpf/core.c:387:
+				 * attached to ALLOW_ERROR_INJECTION and are not in denylist.

WARNING: line length of 96 exceeds 80 columns
#382: FILE: kernel/bpf/core.c:392:
+				/* fentry/fexit/fmod_ret progs can also be sleepable if they are

WARNING: line length of 84 exceeds 80 columns
#383: FILE: kernel/bpf/core.c:393:
+				 * in the fmodret id set with the KF_SLEEPABLE flag.

CHECK: Unbalanced braces around else statement
#385: FILE: kernel/bpf/core.c:395:
+				else {

WARNING: line length of 92 exceeds 80 columns
#386: FILE: kernel/bpf/core.c:396:
+					u32 *flags = btf_kfunc_is_modify_return(btf, btf_id,

WARNING: line length of 86 exceeds 80 columns
#387: FILE: kernel/bpf/core.c:397:
+										prog);

WARNING: line length of 95 exceeds 80 columns
#394: FILE: kernel/bpf/core.c:404:
+				/* LSM progs check that they are attached to bpf_lsm_*() funcs.

WARNING: line length of 92 exceeds 80 columns
#411: FILE: kernel/bpf/core.c:421:
+				bpf_log(log, "can't modify return codes of BPF programs\n");

total: 0 errors, 29 warnings, 5 checks, 778 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 8024fddac05e ("bpf: Move bpf_check_attach_target() to core") 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, 29 warnings, 5 checks, 778 lines checked