WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#48: 
new file mode 100644

WARNING: line length of 81 exceeds 80 columns
#181: FILE: tools/kexec/zboot_parser_bpf.c:41:
+ * This function ensures that the sections .rodata, .data .bss and .rodata.str1.1

WARNING: Prefer __used over __attribute__((used))
#184: FILE: tools/kexec/zboot_parser_bpf.c:44:
+__attribute__((used)) static int dummy(void)

WARNING: line length of 107 exceeds 80 columns
#186: FILE: tools/kexec/zboot_parser_bpf.c:46:
+	static const char res_kernel[16] __attribute__((used, section(".rodata"))) = KEXEC_RES_KERNEL_NAME;

WARNING: Prefer __used over __attribute__((used))
#186: FILE: tools/kexec/zboot_parser_bpf.c:46:
+	static const char res_kernel[16] __attribute__((used, section(".rodata"))) = KEXEC_RES_KERNEL_NAME;

WARNING: Prefer __section(".rodata") over __attribute__((section(".rodata")))
#186: FILE: tools/kexec/zboot_parser_bpf.c:46:
+	static const char res_kernel[16] __attribute__((used, section(".rodata"))) = KEXEC_RES_KERNEL_NAME;

WARNING: line length of 100 exceeds 80 columns
#187: FILE: tools/kexec/zboot_parser_bpf.c:47:
+	static char local_name[16] __attribute__((used, section(".data"))) = KEXEC_RES_CMDLINE_NAME;

WARNING: Prefer __used over __attribute__((used))
#187: FILE: tools/kexec/zboot_parser_bpf.c:47:
+	static char local_name[16] __attribute__((used, section(".data"))) = KEXEC_RES_CMDLINE_NAME;

WARNING: Prefer __section(".data") over __attribute__((section(".data")))
#187: FILE: tools/kexec/zboot_parser_bpf.c:47:
+	static char local_name[16] __attribute__((used, section(".data"))) = KEXEC_RES_CMDLINE_NAME;

WARNING: Prefer __used over __attribute__((used))
#188: FILE: tools/kexec/zboot_parser_bpf.c:48:
+	static char res_cmdline[16] __attribute__((used, section(".bss")));

WARNING: Prefer __section(".bss") over __attribute__((section(".bss")))
#188: FILE: tools/kexec/zboot_parser_bpf.c:48:
+	static char res_cmdline[16] __attribute__((used, section(".bss")));

WARNING: line length of 83 exceeds 80 columns
#194: FILE: tools/kexec/zboot_parser_bpf.c:54:
+extern int bpf_copy_to_kernel(const char *name, char *buf, int size) __weak __ksym;

WARNING: line length of 102 exceeds 80 columns
#195: FILE: tools/kexec/zboot_parser_bpf.c:55:
+extern struct mem_range_result *bpf_decompress(char *image_gz_payload, int image_gz_sz) __weak __ksym;

WARNING: externs should be avoided in .c files
#195: FILE: tools/kexec/zboot_parser_bpf.c:55:
+extern struct mem_range_result *bpf_decompress(char *image_gz_payload, int image_gz_sz) __weak __ksym;

WARNING: line length of 83 exceeds 80 columns
#196: FILE: tools/kexec/zboot_parser_bpf.c:56:
+extern int bpf_mem_range_result_put(struct mem_range_result *result) __weak __ksym;

CHECK: Please don't use multiple blank lines
#198: FILE: tools/kexec/zboot_parser_bpf.c:58:
+
+

CHECK: Please don't use multiple blank lines
#200: FILE: tools/kexec/zboot_parser_bpf.c:60:
+
+

WARNING: Prefer __packed over __attribute__((packed))
#211: FILE: tools/kexec/zboot_parser_bpf.c:71:
+} __attribute__((packed));

CHECK: Please don't use multiple blank lines
#213: FILE: tools/kexec/zboot_parser_bpf.c:73:
+
+

CHECK: Unnecessary parentheses around 'context->image_sz > MAX_RECORD_SIZE'
#224: FILE: tools/kexec/zboot_parser_bpf.c:84:
+	if (!context->image || (context->image_sz > MAX_RECORD_SIZE)) {

WARNING: line length of 87 exceeds 80 columns
#225: FILE: tools/kexec/zboot_parser_bpf.c:85:
+		bpf_printk("Err: image size is greater than 0x%lx\n", MAX_RECORD_SIZE);

WARNING: line length of 81 exceeds 80 columns
#232: FILE: tools/kexec/zboot_parser_bpf.c:92:
+	 * R2 is ARG_CONST_ALLOC_SIZE_OR_ZERO, should be decided at compling time

ERROR: code indent should use tabs where possible
#236: FILE: tools/kexec/zboot_parser_bpf.c:96:
+^I    ^Ibpf_printk("Err: fail to reserve ringbuf to parse zboot header\n");$

WARNING: please, no space before tabs
#236: FILE: tools/kexec/zboot_parser_bpf.c:96:
+^I    ^Ibpf_printk("Err: fail to reserve ringbuf to parse zboot header\n");$

WARNING: line length of 90 exceeds 80 columns
#240: FILE: tools/kexec/zboot_parser_bpf.c:100:
+	bpf_probe_read((void *)buf, sizeof(struct linux_pe_zboot_header), context->image);

CHECK: Alignment should match open parenthesis
#243: FILE: tools/kexec/zboot_parser_bpf.c:103:
+	if (!!__builtin_memcmp(&zboot_header->image_type, "zimg",
+			sizeof(zboot_header->image_type))) {

WARNING: line length of 97 exceeds 80 columns
#251: FILE: tools/kexec/zboot_parser_bpf.c:111:
+	bpf_printk("zboot image payload offset=0x%x, size=0x%x\n", payload_offset, payload_size);

WARNING: Missing a blank line after declarations
#251: FILE: tools/kexec/zboot_parser_bpf.c:111:
+	unsigned int payload_size = zboot_header->payload_size;
+	bpf_printk("zboot image payload offset=0x%x, size=0x%x\n", payload_offset, payload_size);

ERROR: space prohibited before that close parenthesis ')'
#258: FILE: tools/kexec/zboot_parser_bpf.c:118:
+	if (payload_size >= MAX_RECORD_SIZE ) {

WARNING: line length of 83 exceeds 80 columns
#264: FILE: tools/kexec/zboot_parser_bpf.c:124:
+	bpf_probe_read((void *)buf, payload_size, context->image + payload_offset);

WARNING: Missing a blank line after declarations
#267: FILE: tools/kexec/zboot_parser_bpf.c:127:
+	struct mem_range_result *r = bpf_decompress(buf, payload_size - 4);
+	if (!r) {

ERROR: trailing whitespace
#280: FILE: tools/kexec/zboot_parser_bpf.c:140:
+^I$

WARNING: line length of 83 exceeds 80 columns
#281: FILE: tools/kexec/zboot_parser_bpf.c:141:
+	/* Since the decompressed size is bigger than original, no need to clean */

WARNING: Missing a blank line after declarations
#287: FILE: tools/kexec/zboot_parser_bpf.c:147:
+	const char *res_name = local_name;
+	bpf_copy_to_kernel(res_name, buf, image_sz);

total: 3 errors, 26 warnings, 5 checks, 240 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 e42970036cab ("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 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.