WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#94: 
new file mode 100644

ERROR: Macros with complex values should be enclosed in parentheses
#152: FILE: drivers/ptp/ptp_vmclock.c:54:
+#define VMCLOCK_FIELD_PRESENT(_c, _f)			  \
+	le32_to_cpu((_c)->size) >= (offsetof(struct vmclock_abi, _f) +	\
+				    sizeof((_c)->_f))

CHECK: Prefer kernel type 'u64' over 'uint64_t'
#163: FILE: drivers/ptp/ptp_vmclock.c:65:
+static uint64_t mul_u64_u64_shr_add_u64(uint64_t *res_hi, uint64_t delta,

CHECK: Prefer kernel type 'u64' over 'uint64_t'
#164: FILE: drivers/ptp/ptp_vmclock.c:66:
+					uint64_t period, uint8_t shift,

CHECK: Prefer kernel type 'u64' over 'uint64_t'
#196: FILE: drivers/ptp/ptp_vmclock.c:98:
+	uint64_t cycle, delta, seq, frac_sec;

WARNING: line length of 97 exceeds 80 columns
#248: FILE: drivers/ptp/ptp_vmclock.c:150:
+						   le64_to_cpu(st->clk->counter_period_frac_sec),

WARNING: line length of 81 exceeds 80 columns
#249: FILE: drivers/ptp/ptp_vmclock.c:151:
+						   st->clk->counter_period_shift,

WARNING: line length of 88 exceeds 80 columns
#250: FILE: drivers/ptp/ptp_vmclock.c:152:
+						   le64_to_cpu(st->clk->time_frac_sec));

WARNING: memory barrier without comment
#257: FILE: drivers/ptp/ptp_vmclock.c:159:
+		virt_rmb();

WARNING: line length of 87 exceeds 80 columns
#287: FILE: drivers/ptp/ptp_vmclock.c:189:
+					    struct system_counterval_t *system_counter,

WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
#291: FILE: drivers/ptp/ptp_vmclock.c:193:
+	unsigned pvti_ver;

WARNING: line length of 87 exceeds 80 columns
#304: FILE: drivers/ptp/ptp_vmclock.c:206:
+							       system_counter->cycles);

WARNING: Missing a blank line after declarations
#361: FILE: drivers/ptp/ptp_vmclock.c:263:
+		struct system_time_snapshot systime_snapshot;
+		ktime_get_snapshot(&systime_snapshot);

WARNING: line length of 84 exceeds 80 columns
#366: FILE: drivers/ptp/ptp_vmclock.c:268:
+			ret = get_device_system_crosststamp(ptp_vmclock_get_time_fn,

CHECK: Alignment should match open parenthesis
#389: FILE: drivers/ptp/ptp_vmclock.c:291:
+static int ptp_vmclock_settime(struct ptp_clock_info *ptp,
+			   const struct timespec64 *ts)

WARNING: line length of 82 exceeds 80 columns
#394: FILE: drivers/ptp/ptp_vmclock.c:296:
+static int ptp_vmclock_gettimex(struct ptp_clock_info *ptp, struct timespec64 *ts,

CHECK: Alignment should match open parenthesis
#404: FILE: drivers/ptp/ptp_vmclock.c:306:
+static int ptp_vmclock_enable(struct ptp_clock_info *ptp,
+			  struct ptp_clock_request *rq, int on)

CHECK: multiple assignments should be avoided
#445: FILE: drivers/ptp/ptp_vmclock.c:347:
+	st->sys_cs_id = st->cs_id = cs_id;

CHECK: spaces preferred around that '|' (ctx:VxV)
#457: FILE: drivers/ptp/ptp_vmclock.c:359:
+	if ((vma->vm_flags & (VM_READ|VM_WRITE)) != VM_READ)
 	                             ^

ERROR: code indent should use tabs where possible
#463: FILE: drivers/ptp/ptp_vmclock.c:365:
+        if (io_remap_pfn_range(vma, vma->vm_start,$

WARNING: please, no spaces at the start of a line
#463: FILE: drivers/ptp/ptp_vmclock.c:365:
+        if (io_remap_pfn_range(vma, vma->vm_start,$

ERROR: code indent should use tabs where possible
#465: FILE: drivers/ptp/ptp_vmclock.c:367:
+                               vma->vm_page_prot))$

WARNING: please, no spaces at the start of a line
#465: FILE: drivers/ptp/ptp_vmclock.c:367:
+                               vma->vm_page_prot))$

ERROR: code indent should use tabs where possible
#466: FILE: drivers/ptp/ptp_vmclock.c:368:
+                return -EAGAIN;$

WARNING: please, no spaces at the start of a line
#466: FILE: drivers/ptp/ptp_vmclock.c:368:
+                return -EAGAIN;$

ERROR: code indent should use tabs where possible
#468: FILE: drivers/ptp/ptp_vmclock.c:370:
+        return 0;$

WARNING: please, no spaces at the start of a line
#468: FILE: drivers/ptp/ptp_vmclock.c:370:
+        return 0;$

CHECK: Prefer kernel type 'u32' over 'uint32_t'
#478: FILE: drivers/ptp/ptp_vmclock.c:380:
+	uint32_t seq;

WARNING: memory barrier without comment
#489: FILE: drivers/ptp/ptp_vmclock.c:391:
+		virt_rmb();

WARNING: memory barrier without comment
#494: FILE: drivers/ptp/ptp_vmclock.c:396:
+		virt_rmb();

ERROR: code indent should use tabs where possible
#507: FILE: drivers/ptp/ptp_vmclock.c:409:
+        .mmap = vmclock_miscdev_mmap,$

WARNING: please, no spaces at the start of a line
#507: FILE: drivers/ptp/ptp_vmclock.c:409:
+        .mmap = vmclock_miscdev_mmap,$

ERROR: code indent should use tabs where possible
#508: FILE: drivers/ptp/ptp_vmclock.c:410:
+        .read = vmclock_miscdev_read,$

WARNING: please, no spaces at the start of a line
#508: FILE: drivers/ptp/ptp_vmclock.c:410:
+        .read = vmclock_miscdev_read,$

WARNING: line length of 81 exceeds 80 columns
#525: FILE: drivers/ptp/ptp_vmclock.c:427:
+static acpi_status vmclock_acpi_resources(struct acpi_resource *ares, void *data)

CHECK: Unnecessary parentheses around win.res
#529: FILE: drivers/ptp/ptp_vmclock.c:431:
+	struct resource *res = &(win.res);

ERROR: code indent should use tabs where possible
#538: FILE: drivers/ptp/ptp_vmclock.c:440:
+        if (acpi_dev_resource_memory(ares, res) ||$

WARNING: please, no spaces at the start of a line
#538: FILE: drivers/ptp/ptp_vmclock.c:440:
+        if (acpi_dev_resource_memory(ares, res) ||$

CHECK: Blank lines aren't necessary after an open brace '{'
#540: FILE: drivers/ptp/ptp_vmclock.c:442:
+	    acpi_dev_resource_address_space(ares, &win)) {
+

WARNING: space prohibited between function name and open parenthesis '('
#588: FILE: drivers/ptp/ptp_vmclock.c:490:
+	st = devm_kzalloc(dev, sizeof (*st), GFP_KERNEL);

WARNING: line length of 82 exceeds 80 columns
#634: FILE: drivers/ptp/ptp_vmclock.c:536:
+	st->name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "vmclock%d", st->index);

WARNING: Prefer "GPL" over "GPL v2" - see commit bf7fbeeae6db ("module: Cure the MODULE_LICENSE "GPL" vs. "GPL v2" bogosity")
#705: FILE: drivers/ptp/ptp_vmclock.c:607:
+MODULE_LICENSE("GPL v2");

WARNING: line length of 82 exceeds 80 columns
#712: FILE: include/uapi/linux/vmclock-abi.h:1:
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */

WARNING: line length of 88 exceeds 80 columns
#785: FILE: include/uapi/linux/vmclock-abi.h:74:
+#define VMCLOCK_TIME_UTC			0	/* Since 1970-01-01 00:00:00z */

WARNING: line length of 88 exceeds 80 columns
#786: FILE: include/uapi/linux/vmclock-abi.h:75:
+#define VMCLOCK_TIME_TAI			1	/* Since 1970-01-01 00:00:00z */

WARNING: line length of 83 exceeds 80 columns
#787: FILE: include/uapi/linux/vmclock-abi.h:76:
+#define VMCLOCK_TIME_MONOTONIC			2	/* Since undefined epoch */

total: 8 errors, 28 warnings, 10 checks, 815 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 07a8fa03f1dc ("ptp: Add support for the AMZNC10C 'vmclock' device") 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.