WARNING: line length of 84 exceeds 80 columns
#136: FILE: kernel/bpf/const_fold.c:18:
+	CONST_ARG_MAP_PTR,	/* register holds a map pointer, map_index is set */

WARNING: line length of 86 exceeds 80 columns
#137: FILE: kernel/bpf/const_fold.c:19:
+	CONST_ARG_MAP_VALUE,	/* register points to map value data, val is offset */

WARNING: line length of 93 exceeds 80 columns
#138: FILE: kernel/bpf/const_fold.c:20:
+	CONST_ARG_SUBPROG,	/* register holds a subprog pointer, val is subprog number */

WARNING: line length of 87 exceeds 80 columns
#168: FILE: kernel/bpf/const_fold.c:50:
+static void const_reg_xfer(struct bpf_verifier_env *env, struct const_arg_info *ci_out,

WARNING: line length of 82 exceeds 80 columns
#169: FILE: kernel/bpf/const_fold.c:51:
+			   struct bpf_insn *insn, struct bpf_insn *insns, int idx)

WARNING: line length of 81 exceeds 80 columns
#171: FILE: kernel/bpf/const_fold.c:53:
+	struct const_arg_info unknown = { .state = CONST_ARG_UNKNOWN, .val = 0 };

ERROR: trailing statements should be on next line
#196: FILE: kernel/bpf/const_fold.c:78:
+			case 8:  dst->val = (s8)dst->val; break;

ERROR: trailing statements should be on next line
#197: FILE: kernel/bpf/const_fold.c:79:
+			case 16: dst->val = (s16)dst->val; break;

ERROR: trailing statements should be on next line
#198: FILE: kernel/bpf/const_fold.c:80:
+			case 32: dst->val = (s32)dst->val; break;

ERROR: trailing statements should be on next line
#199: FILE: kernel/bpf/const_fold.c:81:
+			default: *dst = unknown; break;

WARNING: line length of 81 exceeds 80 columns
#259: FILE: kernel/bpf/const_fold.c:141:
+			int subprog = bpf_find_subprog(env, idx + insn->imm + 1);

WARNING: line length of 94 exceeds 80 columns
#278: FILE: kernel/bpf/const_fold.c:160:
+			dst->val = (u64)(u32)insn->imm | ((u64)(u32)insns[idx + 1].imm << 32);

WARNING: line length of 82 exceeds 80 columns
#294: FILE: kernel/bpf/const_fold.c:176:
+		if (!bpf_map_is_rdonly(map) || !map->ops->map_direct_value_addr ||

WARNING: line length of 81 exceeds 80 columns
#350: FILE: kernel/bpf/const_fold.c:232:
+	struct const_arg_info unknown = { .state = CONST_ARG_UNKNOWN, .val = 0 };

WARNING: line length of 85 exceeds 80 columns
#360: FILE: kernel/bpf/const_fold.c:242:
+	/* kvzalloc zeroes memory, so all entries start as CONST_ARG_UNVISITED (0) */

WARNING: line length of 85 exceeds 80 columns
#365: FILE: kernel/bpf/const_fold.c:247:
+	/* Subprogram entries (including main at subprog 0): all registers unknown */

WARNING: line length of 81 exceeds 80 columns
#386: FILE: kernel/bpf/const_fold.c:268:
+			changed |= const_reg_join(ci_in[succ->items[s]], ci_out);

WARNING: line length of 88 exceeds 80 columns
#489: FILE: kernel/bpf/const_fold.c:371:
+			 * The (s32) cast maps the 32-bit range into two u64 sub-ranges:

WARNING: line length of 95 exceeds 80 columns
#490: FILE: kernel/bpf/const_fold.c:372:
+			 * [0x00000000, 0x7FFFFFFF] -> [0x0000000000000000, 0x000000007FFFFFFF]

WARNING: line length of 95 exceeds 80 columns
#491: FILE: kernel/bpf/const_fold.c:373:
+			 * [0x80000000, 0xFFFFFFFF] -> [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]

WARNING: line length of 88 exceeds 80 columns
#501: FILE: kernel/bpf/const_fold.c:383:
+			bpf_log(&env->log, "Unknown conditional jump %x\n", insn->code);

WARNING: line length of 88 exceeds 80 columns
#559: FILE: kernel/bpf/verifier.c:3793:
+				callee = bpf_find_subprog(env, idx + insn[idx].imm + 1);

WARNING: line length of 83 exceeds 80 columns
#652: FILE: kernel/bpf/verifier.c:21541:
+		/* Sanity check: precomputed constants must match verifier state */

WARNING: line length of 87 exceeds 80 columns
#666: FILE: kernel/bpf/verifier.c:21555:
+				if (verifier_bug_if((u32)regs[r].var_off.value != cval,

WARNING: line length of 81 exceeds 80 columns
#667: FILE: kernel/bpf/verifier.c:21556:
+						    env, "const R%d: %u != %llu",

WARNING: line length of 84 exceeds 80 columns
#668: FILE: kernel/bpf/verifier.c:21557:
+						    r, cval, regs[r].var_off.value))

WARNING: line length of 86 exceeds 80 columns
#717: FILE: kernel/bpf/verifier.c:23896:
+		if (bpf_is_may_goto_insn(insn) && bpf_jit_supports_timed_may_goto()) {

WARNING: line length of 81 exceeds 80 columns
#776: FILE: tools/testing/selftests/bpf/progs/verifier_scalar_ids.c:608:
+	"r1 ^= r1;" /* prevent bpf_prune_dead_branches from folding the branch */

WARNING: line length of 81 exceeds 80 columns
#808: FILE: tools/testing/selftests/bpf/progs/verifier_scalar_ids.c:647:
+	"w1 ^= w1;" /* prevent bpf_prune_dead_branches from folding the branch */

total: 4 errors, 25 warnings, 0 checks, 747 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 650dc68f662b ("bpf: Add bpf_compute_const_regs() and bpf_prune_dead_branches() passes") 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.