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

WARNING: line length of 95 exceeds 80 columns
#143: FILE: arch/arm64/lib/insn.c:558:
+		pr_err("%s: unknown load-acquire/store-release encoding %d\n", __func__, type);

WARNING: line length of 83 exceeds 80 columns
#211: FILE: arch/arm64/net/bpf_jit_comp.c:644:
+static int emit_atomic_load_store(const struct bpf_insn *insn, struct jit_ctx *ctx)

WARNING: line length of 83 exceeds 80 columns
#271: FILE: arch/arm64/net/bpf_jit_comp.c:704:
+		pr_err_once("unknown atomic load/store op code %02x\n", insn->imm);

WARNING: line length of 82 exceeds 80 columns
#328: FILE: include/uapi/linux/bpf.h:64:
+#define BPF_LOAD_ACQ	(BPF_ATOMIC_LOAD | BPF_ACQUIRE)		/* load-acquire */

WARNING: line length of 83 exceeds 80 columns
#329: FILE: include/uapi/linux/bpf.h:65:
+#define BPF_STORE_REL	(BPF_ATOMIC_STORE | BPF_RELEASE)	/* store-release */

WARNING: labels should not be indented
#362: FILE: kernel/bpf/core.c:2175:
+	STX_ATOMIC_H:

WARNING: labels should not be indented
#363: FILE: kernel/bpf/core.c:2176:
+	STX_ATOMIC_B:

WARNING: macros should not use a trailing semicolon
#373: FILE: kernel/bpf/core.c:2206:
+#define LOAD_ACQUIRE(SIZEOP, SIZE)				\
+			case BPF_##SIZEOP:			\
+				DST = (SIZE)smp_load_acquire(	\
+					(SIZE *)(unsigned long)(SRC + insn->off));	\
+				break;

WARNING: memory barrier without comment
#375: FILE: kernel/bpf/core.c:2208:
+				DST = (SIZE)smp_load_acquire(	\

WARNING: line length of 89 exceeds 80 columns
#376: FILE: kernel/bpf/core.c:2209:
+					(SIZE *)(unsigned long)(SRC + insn->off));	\

ERROR: spaces required around that ':' (ctx:VxE)
#383: FILE: kernel/bpf/core.c:2216:
+			default:
 			       ^

CHECK: Macro argument 'SIZE' may be better as '(SIZE)' to avoid precedence issues
#389: FILE: kernel/bpf/core.c:2222:
+#define STORE_RELEASE(SIZEOP, SIZE)			\
+			case BPF_##SIZEOP:		\
+				smp_store_release(	\
+					(SIZE *)(unsigned long)(DST + insn->off), (SIZE)SRC);	\
+				break;

WARNING: macros should not use a trailing semicolon
#389: FILE: kernel/bpf/core.c:2222:
+#define STORE_RELEASE(SIZEOP, SIZE)			\
+			case BPF_##SIZEOP:		\
+				smp_store_release(	\
+					(SIZE *)(unsigned long)(DST + insn->off), (SIZE)SRC);	\
+				break;

WARNING: memory barrier without comment
#391: FILE: kernel/bpf/core.c:2224:
+				smp_store_release(	\

WARNING: line length of 97 exceeds 80 columns
#392: FILE: kernel/bpf/core.c:2225:
+					(SIZE *)(unsigned long)(DST + insn->off), (SIZE)SRC);	\

ERROR: spaces required around that ':' (ctx:VxE)
#399: FILE: kernel/bpf/core.c:2232:
+			default:
 			       ^

WARNING: line length of 99 exceeds 80 columns
#416: FILE: kernel/bpf/disasm.c:272:
+			verbose(cbs->private_data, "(%02x) %s%d = load_acquire((%s *)(r%d %+d))\n",

WARNING: line length of 90 exceeds 80 columns
#418: FILE: kernel/bpf/disasm.c:274:
+				BPF_SIZE(insn->code) == BPF_DW ? "r" : "w", insn->dst_reg,

WARNING: line length of 99 exceeds 80 columns
#423: FILE: kernel/bpf/disasm.c:279:
+			verbose(cbs->private_data, "(%02x) store_release((%s *)(r%d %+d), %s%d)\n",

WARNING: line length of 91 exceeds 80 columns
#427: FILE: kernel/bpf/disasm.c:283:
+				BPF_SIZE(insn->code) == BPF_DW ? "r" : "w", insn->src_reg);

WARNING: line length of 82 exceeds 80 columns
#538: FILE: tools/include/uapi/linux/bpf.h:64:
+#define BPF_LOAD_ACQ	(BPF_ATOMIC_LOAD | BPF_ACQUIRE)		/* load-acquire */

WARNING: line length of 83 exceeds 80 columns
#539: FILE: tools/include/uapi/linux/bpf.h:65:
+#define BPF_STORE_REL	(BPF_ATOMIC_STORE | BPF_RELEASE)	/* store-release */

total: 2 errors, 19 warnings, 1 checks, 403 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 5f31e5c9e34e ("bpf: Introduce load-acquire and store-release instructions") 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.