WARNING: line length of 82 exceeds 80 columns
#204: FILE: tools/kexec/template.c:61:
+ * This function ensures that the sections .rodata, .data, .rodata.str1.1 and .bss

WARNING: Prefer __used over __attribute__((used))
#207: FILE: tools/kexec/template.c:64:
+static const char dummy_rodata[16] __attribute__((used)) = "rodata";

WARNING: Prefer __used over __attribute__((used))
#208: FILE: tools/kexec/template.c:65:
+static char dummy_data[16] __attribute__((used)) = "data";

WARNING: Prefer __used over __attribute__((used))
#209: FILE: tools/kexec/template.c:66:
+static char *dummy_mergeable_str  __attribute__((used)) = ".rodata.str1.1";

WARNING: Prefer __used over __attribute__((used))
#210: FILE: tools/kexec/template.c:67:
+static char dummy_bss[16] __attribute__((used));

CHECK: Please don't use multiple blank lines
#235: FILE: tools/kexec/zboot_parser_bpf.c:18:
+
+

WARNING: Prefer __packed over __attribute__((packed))
#248: FILE: tools/kexec/zboot_parser_bpf.c:31:
+} __attribute__((packed));

CHECK: Please don't use multiple blank lines
#250: FILE: tools/kexec/zboot_parser_bpf.c:33:
+
+

CHECK: Unnecessary parentheses around 'image_sz > MAX_RECORD_SIZE'
#262: FILE: tools/kexec/zboot_parser_bpf.c:45:
+	if (!context->kernel || (image_sz > MAX_RECORD_SIZE)) {

WARNING: line length of 87 exceeds 80 columns
#263: FILE: tools/kexec/zboot_parser_bpf.c:46:
+		bpf_printk("Err: image size is greater than 0x%lx\n", MAX_RECORD_SIZE);

WARNING: line length of 81 exceeds 80 columns
#270: FILE: tools/kexec/zboot_parser_bpf.c:53:
+	 * R2 is ARG_CONST_ALLOC_SIZE_OR_ZERO, should be decided at compling time

ERROR: code indent should use tabs where possible
#274: FILE: tools/kexec/zboot_parser_bpf.c:57:
+^I    ^Ibpf_printk("Err: fail to reserve ringbuf to parse zboot header\n");$

WARNING: please, no space before tabs
#274: FILE: tools/kexec/zboot_parser_bpf.c:57:
+^I    ^Ibpf_printk("Err: fail to reserve ringbuf to parse zboot header\n");$

WARNING: line length of 91 exceeds 80 columns
#277: FILE: tools/kexec/zboot_parser_bpf.c:60:
+	bpf_probe_read((void *)buf, sizeof(struct linux_pe_zboot_header), context->kernel);

CHECK: Alignment should match open parenthesis
#280: FILE: tools/kexec/zboot_parser_bpf.c:63:
+	if (!!__builtin_memcmp(&zboot_header->image_type, "zimg",
+			sizeof(zboot_header->image_type))) {

WARNING: line length of 97 exceeds 80 columns
#288: FILE: tools/kexec/zboot_parser_bpf.c:71:
+	bpf_printk("zboot image payload offset=0x%x, size=0x%x\n", payload_offset, payload_size);

WARNING: Missing a blank line after declarations
#288: FILE: tools/kexec/zboot_parser_bpf.c:71:
+	unsigned int payload_size = zboot_header->payload_size;
+	bpf_printk("zboot image payload offset=0x%x, size=0x%x\n", payload_offset, payload_size);

WARNING: Missing a blank line after declarations
#296: FILE: tools/kexec/zboot_parser_bpf.c:79:
+	unsigned int max_payload = MAX_RECORD_SIZE - sizeof(struct cmd_hdr);
+	if (payload_size >= max_payload) {

WARNING: Missing a blank line after declarations
#304: FILE: tools/kexec/zboot_parser_bpf.c:87:
+	struct cmd_hdr *cmd = (struct cmd_hdr *)buf;
+	cmd->cmd = KEXEC_BPF_CMD_DECOMPRESS;

WARNING: Missing a blank line after declarations
#315: FILE: tools/kexec/zboot_parser_bpf.c:98:
+	struct bpf_parser_context *bpf = bpf_get_parser_context(parser_id);
+	if (!bpf) {

WARNING: line length of 85 exceeds 80 columns
#320: FILE: tools/kexec/zboot_parser_bpf.c:103:
+	ret = bpf_buffer_parser(buf, sizeof(struct cmd_hdr) + payload_size - 4, bpf);

total: 1 errors, 16 warnings, 4 checks, 265 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 7541246f0eba ("tools/kexec: Introduce a bpf-prog to parse zboot image format") 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.