==========
checkpatch - FAILED

WARNING: 'atleast' may be misspelled - perhaps 'at least'?
#17: 
atleast need a single CPU to run.
^^^^^^^

WARNING: line length of 81 exceeds 80 columns
#38: FILE: arch/x86/net/bpf_jit_comp.c:2609:
+			/* emiting 5 byte nop for non-inline bpf_loop callback */

WARNING: line length of 99 exceeds 80 columns
#39: FILE: arch/x86/net/bpf_jit_comp.c:2610:
+			if (bpf_is_subprog(bpf_prog) && bpf_prog->aux->is_bpf_loop_cb_non_inline) {

WARNING: braces {} are not necessary for single statement blocks
#39: FILE: arch/x86/net/bpf_jit_comp.c:2610:
+			if (bpf_is_subprog(bpf_prog) && bpf_prog->aux->is_bpf_loop_cb_non_inline) {
+				emit_nops(&prog, X86_PATCH_SIZE);
+			}

CHECK: Please don't use multiple blank lines
#49: FILE: arch/x86/net/bpf_jit_comp.c:3840:
 
+

WARNING: Missing a blank line after declarations
#64: FILE: arch/x86/net/bpf_jit_comp.c:3864:
+	u8 ret_jmp_size = 1;
+	if (cpu_wants_rethunk()) {

WARNING: braces {} are not necessary for single statement blocks
#64: FILE: arch/x86/net/bpf_jit_comp.c:3864:
+	if (cpu_wants_rethunk()) {
+		ret_jmp_size = 5;
+	}

WARNING: line length of 87 exceeds 80 columns
#68: FILE: arch/x86/net/bpf_jit_comp.c:3868:
+	for (int i = 0; i < prog->term_states->patch_call_sites->call_sites_cnt; i++) {

ERROR: trailing whitespace
#69: FILE: arch/x86/net/bpf_jit_comp.c:3869:
+^I^I$

CHECK: Blank lines aren't necessary after an open brace '{'
#69: FILE: arch/x86/net/bpf_jit_comp.c:3869:
+	for (int i = 0; i < prog->term_states->patch_call_sites->call_sites_cnt; i++) {
+		

CHECK: No space is necessary after a cast
#70: FILE: arch/x86/net/bpf_jit_comp.c:3870:
+		new_target = (unsigned long) bpf_termination_null_func;

WARNING: braces {} are not necessary for single statement blocks
#71: FILE: arch/x86/net/bpf_jit_comp.c:3871:
+		if (call_states[i].is_bpf_loop_cb_inline) {
+			new_target = (unsigned long) bpf_loop_term_callback;	
+		}

ERROR: trailing whitespace
#72: FILE: arch/x86/net/bpf_jit_comp.c:3872:
+^I^I^Inew_target = (unsigned long) bpf_loop_term_callback;^I$

CHECK: No space is necessary after a cast
#72: FILE: arch/x86/net/bpf_jit_comp.c:3872:
+			new_target = (unsigned long) bpf_loop_term_callback;	

WARNING: line length of 83 exceeds 80 columns
#76: FILE: arch/x86/net/bpf_jit_comp.c:3876:
+		addr = (unsigned char *)prog->bpf_func + call_states->jit_call_idx;

WARNING: line length of 96 exceeds 80 columns
#78: FILE: arch/x86/net/bpf_jit_comp.c:3878:
+		unsigned long new_rel = (unsigned long)(new_target - (unsigned long)(addr + 5));

WARNING: Missing a blank line after declarations
#79: FILE: arch/x86/net/bpf_jit_comp.c:3879:
+		unsigned long new_rel = (unsigned long)(new_target - (unsigned long)(addr + 5));
+		new_insn[0] = 0xE8;

WARNING: line length of 92 exceeds 80 columns
#85: FILE: arch/x86/net/bpf_jit_comp.c:3885:
+		smp_text_poke_batch_add(addr, new_insn, 5 /* call instruction len */, NULL);

ERROR: trailing whitespace
#89: FILE: arch/x86/net/bpf_jit_comp.c:3889:
+^I^I$

CHECK: Blank lines aren't necessary after an open brace '{'
#89: FILE: arch/x86/net/bpf_jit_comp.c:3889:
+	if (prog->aux->is_bpf_loop_cb_non_inline) {
+		

ERROR: trailing whitespace
#92: FILE: arch/x86/net/bpf_jit_comp.c:3892:
+^I^Ismp_text_poke_batch_add(prog->bpf_func + prog->jited_len - $

WARNING: Missing a blank line after declarations
#92: FILE: arch/x86/net/bpf_jit_comp.c:3892:
+		char old_insn[5] = { 0x0F, 0x1F, 0x44, 0x00, 0x00 };
+		smp_text_poke_batch_add(prog->bpf_func + prog->jited_len - 

WARNING: line length of 133 exceeds 80 columns
#93: FILE: arch/x86/net/bpf_jit_comp.c:3893:
+				(1 + ret_jmp_size) /* leave, jmp/ ret */ - 5 /* nop size */, new_insn, 5 /* mov eax, 1 */, old_insn);

CHECK: Please don't use multiple blank lines
#96: FILE: arch/x86/net/bpf_jit_comp.c:3896:
+
+

WARNING: Missing a blank line after declarations
#104: FILE: arch/x86/net/bpf_jit_comp.c:3904:
+	u8 ret_jmp_size = 1;
+	if (cpu_wants_rethunk()) {

WARNING: braces {} are not necessary for single statement blocks
#104: FILE: arch/x86/net/bpf_jit_comp.c:3904:
+	if (cpu_wants_rethunk()) {
+		ret_jmp_size = 5;
+	}

ERROR: trailing whitespace
#111: FILE: arch/x86/net/bpf_jit_comp.c:3911:
+^Iunsigned long jmp_offset = prog->jited_len - (4 /* First endbr is 4 bytes */ $

WARNING: line length of 85 exceeds 80 columns
#111: FILE: arch/x86/net/bpf_jit_comp.c:3911:
+	unsigned long jmp_offset = prog->jited_len - (4 /* First endbr is 4 bytes */ 

ERROR: trailing whitespace
#112: FILE: arch/x86/net/bpf_jit_comp.c:3912:
+^I^I^I^I^I+ 5 /* noop is 5 bytes */ $

WARNING: line length of 103 exceeds 80 columns
#113: FILE: arch/x86/net/bpf_jit_comp.c:3913:
+					+ ret_jmp_size /* 5 bytes of jmp return_thunk or 1 byte ret*/);

WARNING: Missing a blank line after declarations
#116: FILE: arch/x86/net/bpf_jit_comp.c:3916:
+	char new_insn[5];
+	new_insn[0] = 0xE9;

WARNING: braces {} are not necessary for single statement blocks
#125: FILE: arch/x86/net/bpf_jit_comp.c:3925:
+		for (int i = 0; i < prog->aux->func_cnt; i++) {
+			in_place_patch_bpf_prog(prog->aux->func[i]);
+		}

CHECK: Blank lines aren't necessary before a close brace '}'
#132: FILE: arch/x86/net/bpf_jit_comp.c:3932:
+
+}

WARNING: line length of 96 exceeds 80 columns
#136: FILE: arch/x86/net/bpf_jit_comp.c:3936:
+	struct bpf_term_aux_states *term_states = container_of(work, struct bpf_term_aux_states,

WARNING: line length of 82 exceeds 80 columns
#166: FILE: arch/x86/net/bpf_jit_comp.c:3966:
+		if (atomic_cmpxchg(&prog->term_states->bpf_die_in_progress, 0, 1))

ERROR: trailing whitespace
#168: FILE: arch/x86/net/bpf_jit_comp.c:3968:
+^I$

WARNING: line length of 90 exceeds 80 columns
#169: FILE: arch/x86/net/bpf_jit_comp.c:3969:
+		bpf_termination_wq = alloc_workqueue("bpf_termination_wq", WQ_UNBOUND, 1);

CHECK: Please don't use multiple blank lines
#257: FILE: kernel/bpf/core.c:108:
+
+

WARNING: void function return statements are not generally useful
#261: FILE: kernel/bpf/core.c:112:
+	return;
+}

WARNING: void function return statements are not generally useful
#266: FILE: kernel/bpf/core.c:117:
+	return;
+}

WARNING: void function return statements are not generally useful
#271: FILE: kernel/bpf/core.c:122:
+	return;
+}

WARNING: void function return statements are not generally useful
#276: FILE: kernel/bpf/core.c:127:
+	return;
+}

WARNING: line length of 83 exceeds 80 columns
#313: FILE: kernel/watchdog.c:706:
+		 * So trigger fast path termination to terminate such BPF programs.

WARNING: line length of 84 exceeds 80 columns
#315: FILE: kernel/watchdog.c:708:
+		if (time_after_eq(now, period_ts + get_softlockup_thresh() * 3 / 4))

total: 7 errors, 29 warnings, 8 checks, 259 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 1c8e1e3bd11c ("bpf: runtime part of fast-path termination approach") 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.