WARNING: line length of 84 exceeds 80 columns
#104: FILE: include/linux/bpf.h:1670:
+	u16 stack_arg_depth; /* both incoming and max outgoing of stack arguments */

WARNING: line length of 84 exceeds 80 columns
#117: FILE: include/linux/bpf_verifier.h:272:
+	struct bpf_reg_state spilled_ptr; /* for spilled scalar/pointer semantics */

WARNING: line length of 87 exceeds 80 columns
#129: FILE: include/linux/bpf_verifier.h:328:
+	u16 stack_arg_depth; /* Size of incoming + max outgoing stack args in bytes. */

WARNING: line length of 81 exceeds 80 columns
#130: FILE: include/linux/bpf_verifier.h:329:
+	u16 incoming_stack_arg_depth; /* Size of incoming stack args in bytes. */

WARNING: line length of 87 exceeds 80 columns
#168: FILE: kernel/bpf/btf.c:7896:
+		bpf_log(log, "Global function %s() with %d > %d args not supported.\n",

WARNING: line length of 95 exceeds 80 columns
#173: FILE: kernel/bpf/btf.c:7901:
+		sub->incoming_stack_arg_depth = (nargs - MAX_BPF_FUNC_REG_ARGS) * BPF_REG_SIZE;

WARNING: line length of 96 exceeds 80 columns
#190: FILE: kernel/bpf/verifier.c:1495:
+		dst->stack_arg_slots = copy_array(dst->stack_arg_slots, src->stack_arg_slots, n,

WARNING: line length of 85 exceeds 80 columns
#191: FILE: kernel/bpf/verifier.c:1496:
+						  sizeof(struct bpf_stack_arg_state),

WARNING: line length of 83 exceeds 80 columns
#217: FILE: kernel/bpf/verifier.c:1556:
+					       sizeof(struct bpf_stack_arg_state));

WARNING: line length of 92 exceeds 80 columns
#275: FILE: kernel/bpf/verifier.c:5919:
+static int check_stack_arg_write(struct bpf_verifier_env *env, struct bpf_func_state *state,

WARNING: line length of 82 exceeds 80 columns
#292: FILE: kernel/bpf/verifier.c:5936:
+		type = is_spillable_regtype(reg->type) ? STACK_SPILL : STACK_MISC;

WARNING: line length of 81 exceeds 80 columns
#299: FILE: kernel/bpf/verifier.c:5943:
+		__mark_reg_known(reg, (u32)env->prog->insnsi[env->insn_idx].imm);

WARNING: line length of 91 exceeds 80 columns
#311: FILE: kernel/bpf/verifier.c:5955:
+static int check_stack_arg_read(struct bpf_verifier_env *env, struct bpf_func_state *state,

WARNING: line length of 82 exceeds 80 columns
#356: FILE: kernel/bpf/verifier.c:8167:
+		return check_stack_arg_read(env, state, insn->off, insn->dst_reg);

WARNING: line length of 83 exceeds 80 columns
#380: FILE: kernel/bpf/verifier.c:8212:
+		return check_stack_arg_write(env, state, insn->off, insn->src_reg);

WARNING: line length of 85 exceeds 80 columns
#428: FILE: kernel/bpf/verifier.c:11226:
+	 * Transfer stack args from caller's outgoing area to callee's incoming area.

WARNING: line length of 91 exceeds 80 columns
#429: FILE: kernel/bpf/verifier.c:11227:
+	 * Caller wrote outgoing args at offsets '-(incoming + 8)', '-(incoming + 16)', ...

WARNING: line length of 92 exceeds 80 columns
#434: FILE: kernel/bpf/verifier.c:11232:
+		int caller_incoming_slots = caller->incoming_stack_arg_depth / BPF_REG_SIZE;

WARNING: line length of 97 exceeds 80 columns
#435: FILE: kernel/bpf/verifier.c:11233:
+		int callee_incoming_slots = callee_info->incoming_stack_arg_depth / BPF_REG_SIZE;

WARNING: line length of 89 exceeds 80 columns
#437: FILE: kernel/bpf/verifier.c:11235:
+		callee->incoming_stack_arg_depth = callee_info->incoming_stack_arg_depth;

WARNING: line length of 95 exceeds 80 columns
#438: FILE: kernel/bpf/verifier.c:11236:
+		err = grow_stack_arg_slots(env, callee, callee_info->incoming_stack_arg_depth);

WARNING: line length of 81 exceeds 80 columns
#445: FILE: kernel/bpf/verifier.c:11243:
+			if (!is_stack_arg_slot_initialized(caller, caller_spi)) {

WARNING: line length of 87 exceeds 80 columns
#446: FILE: kernel/bpf/verifier.c:11244:
+				verbose(env, "stack arg#%d not properly initialized\n",

WARNING: line length of 89 exceeds 80 columns
#450: FILE: kernel/bpf/verifier.c:11248:
+			callee->stack_arg_slots[i] = caller->stack_arg_slots[caller_spi];

WARNING: line length of 87 exceeds 80 columns
#469: FILE: kernel/bpf/verifier.c:21462:
+			struct bpf_func_state *state = vstate->frame[vstate->curframe];

WARNING: line length of 81 exceeds 80 columns
#495: FILE: kernel/bpf/verifier.c:21479:
+			err = check_mem_access(env, env->insn_idx, insn->dst_reg,

WARNING: line length of 87 exceeds 80 columns
#515: FILE: kernel/bpf/verifier.c:23186:
+		 * Even without subprogs, kfunc calls with >5 args need stack arg space

WARNING: line length of 91 exceeds 80 columns
#518: FILE: kernel/bpf/verifier.c:23189:
+		prog->aux->stack_arg_depth = env->subprog_info[0].outgoing_stack_arg_depth;

WARNING: line length of 103 exceeds 80 columns
#528: FILE: kernel/bpf/verifier.c:23281:
+		func[i]->aux->incoming_stack_arg_depth = env->subprog_info[i].incoming_stack_arg_depth;

WARNING: line length of 95 exceeds 80 columns
#529: FILE: kernel/bpf/verifier.c:23282:
+		func[i]->aux->stack_arg_depth = env->subprog_info[i].incoming_stack_arg_depth +

WARNING: line length of 94 exceeds 80 columns
#530: FILE: kernel/bpf/verifier.c:23283:
+						env->subprog_info[i].outgoing_stack_arg_depth;

total: 0 errors, 31 warnings, 0 checks, 406 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 45f88fbabd49 ("bpf: Support stack arguments for bpf functions") 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, 31 warnings, 0 checks, 406 lines checked