WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#65: 
new file mode 100644

CHECK: Prefer kernel type 'u64' over 'uint64_t'
#130: FILE: drivers/ptp/ptp_vmclock.c:61:
+static inline uint64_t mul_u64_u64_shr_add_u64(uint64_t *res_hi, uint64_t delta,

CHECK: Prefer kernel type 'u64' over 'uint64_t'
#131: FILE: drivers/ptp/ptp_vmclock.c:62:
+					       uint64_t period, uint8_t shift,

CHECK: Prefer kernel type 'u64' over 'uint64_t'
#163: FILE: drivers/ptp/ptp_vmclock.c:94:
+	uint64_t cycle, delta, seq, frac_sec;

WARNING: memory barrier without comment
#176: FILE: drivers/ptp/ptp_vmclock.c:107:
+		virt_rmb();

CHECK: braces {} should be used on all arms of this statement
#195: FILE: drivers/ptp/ptp_vmclock.c:126:
+		if (sts) {
[...]
+		} else
[...]

CHECK: Unbalanced braces around else statement
#203: FILE: drivers/ptp/ptp_vmclock.c:134:
+		} else

WARNING: line length of 84 exceeds 80 columns
#209: FILE: drivers/ptp/ptp_vmclock.c:140:
+						   st->clk->counter_period_frac_sec,

WARNING: line length of 81 exceeds 80 columns
#210: FILE: drivers/ptp/ptp_vmclock.c:141:
+						   st->clk->counter_period_shift,

WARNING: memory barrier without comment
#218: FILE: drivers/ptp/ptp_vmclock.c:149:
+		virt_rmb();

WARNING: line length of 87 exceeds 80 columns
#248: FILE: drivers/ptp/ptp_vmclock.c:179:
+					    struct system_counterval_t *system_counter,

WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
#252: FILE: drivers/ptp/ptp_vmclock.c:183:
+	unsigned pvti_ver;

WARNING: line length of 87 exceeds 80 columns
#265: FILE: drivers/ptp/ptp_vmclock.c:196:
+							       system_counter->cycles);

CHECK: Please don't use multiple blank lines
#307: FILE: drivers/ptp/ptp_vmclock.c:238:
+
+

WARNING: Missing a blank line after declarations
#323: FILE: drivers/ptp/ptp_vmclock.c:254:
+		struct system_time_snapshot systime_snapshot;
+		ktime_get_snapshot(&systime_snapshot);

WARNING: line length of 84 exceeds 80 columns
#328: FILE: drivers/ptp/ptp_vmclock.c:259:
+			ret = get_device_system_crosststamp(ptp_vmclock_get_time_fn,

CHECK: Alignment should match open parenthesis
#351: FILE: drivers/ptp/ptp_vmclock.c:282:
+static int ptp_vmclock_settime(struct ptp_clock_info *ptp,
+			   const struct timespec64 *ts)

WARNING: line length of 82 exceeds 80 columns
#356: FILE: drivers/ptp/ptp_vmclock.c:287:
+static int ptp_vmclock_gettimex(struct ptp_clock_info *ptp, struct timespec64 *ts,

CHECK: Alignment should match open parenthesis
#366: FILE: drivers/ptp/ptp_vmclock.c:297:
+static int ptp_vmclock_enable(struct ptp_clock_info *ptp,
+			  struct ptp_clock_request *rq, int on)

CHECK: spaces preferred around that '|' (ctx:VxV)
#390: FILE: drivers/ptp/ptp_vmclock.c:321:
+	if ((vma->vm_flags & (VM_READ|VM_WRITE)) != VM_READ)
 	                             ^

ERROR: code indent should use tabs where possible
#396: FILE: drivers/ptp/ptp_vmclock.c:327:
+        if (io_remap_pfn_range(vma, vma->vm_start,$

WARNING: please, no spaces at the start of a line
#396: FILE: drivers/ptp/ptp_vmclock.c:327:
+        if (io_remap_pfn_range(vma, vma->vm_start,$

ERROR: code indent should use tabs where possible
#398: FILE: drivers/ptp/ptp_vmclock.c:329:
+                               vma->vm_page_prot))$

WARNING: please, no spaces at the start of a line
#398: FILE: drivers/ptp/ptp_vmclock.c:329:
+                               vma->vm_page_prot))$

ERROR: code indent should use tabs where possible
#399: FILE: drivers/ptp/ptp_vmclock.c:330:
+                return -EAGAIN;$

WARNING: please, no spaces at the start of a line
#399: FILE: drivers/ptp/ptp_vmclock.c:330:
+                return -EAGAIN;$

ERROR: code indent should use tabs where possible
#401: FILE: drivers/ptp/ptp_vmclock.c:332:
+        return 0;$

WARNING: please, no spaces at the start of a line
#401: FILE: drivers/ptp/ptp_vmclock.c:332:
+        return 0;$

CHECK: Prefer kernel type 's32' over 'int32_t'
#411: FILE: drivers/ptp/ptp_vmclock.c:342:
+	int32_t seq;

WARNING: memory barrier without comment
#422: FILE: drivers/ptp/ptp_vmclock.c:353:
+		virt_rmb();

WARNING: memory barrier without comment
#427: FILE: drivers/ptp/ptp_vmclock.c:358:
+		virt_rmb();

ERROR: code indent should use tabs where possible
#440: FILE: drivers/ptp/ptp_vmclock.c:371:
+        .mmap = vmclock_miscdev_mmap,$

WARNING: please, no spaces at the start of a line
#440: FILE: drivers/ptp/ptp_vmclock.c:371:
+        .mmap = vmclock_miscdev_mmap,$

ERROR: code indent should use tabs where possible
#441: FILE: drivers/ptp/ptp_vmclock.c:372:
+        .read = vmclock_miscdev_read,$

WARNING: please, no spaces at the start of a line
#441: FILE: drivers/ptp/ptp_vmclock.c:372:
+        .read = vmclock_miscdev_read,$

WARNING: line length of 81 exceeds 80 columns
#458: FILE: drivers/ptp/ptp_vmclock.c:389:
+static acpi_status vmclock_acpi_resources(struct acpi_resource *ares, void *data)

CHECK: Unnecessary parentheses around win.res
#462: FILE: drivers/ptp/ptp_vmclock.c:393:
+	struct resource *res = &(win.res);

ERROR: code indent should use tabs where possible
#471: FILE: drivers/ptp/ptp_vmclock.c:402:
+        if (acpi_dev_resource_memory(ares, res) ||$

WARNING: please, no spaces at the start of a line
#471: FILE: drivers/ptp/ptp_vmclock.c:402:
+        if (acpi_dev_resource_memory(ares, res) ||$

CHECK: Blank lines aren't necessary after an open brace '{'
#473: FILE: drivers/ptp/ptp_vmclock.c:404:
+	    acpi_dev_resource_address_space(ares, &win)) {
+

ERROR: code indent should use tabs where possible
#490: FILE: drivers/ptp/ptp_vmclock.c:421:
+        status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,$

WARNING: please, no spaces at the start of a line
#490: FILE: drivers/ptp/ptp_vmclock.c:421:
+        status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,$

ERROR: code indent should use tabs where possible
#491: FILE: drivers/ptp/ptp_vmclock.c:422:
+                                     vmclock_acpi_resources, st);$

WARNING: please, no spaces at the start of a line
#491: FILE: drivers/ptp/ptp_vmclock.c:422:
+                                     vmclock_acpi_resources, st);$

ERROR: code indent should use tabs where possible
#492: FILE: drivers/ptp/ptp_vmclock.c:423:
+        if (ACPI_FAILURE(status) || resource_type(&st->res) != IORESOURCE_MEM) {$

WARNING: please, no spaces at the start of a line
#492: FILE: drivers/ptp/ptp_vmclock.c:423:
+        if (ACPI_FAILURE(status) || resource_type(&st->res) != IORESOURCE_MEM) {$

ERROR: code indent should use tabs where possible
#493: FILE: drivers/ptp/ptp_vmclock.c:424:
+                dev_err(dev, "failed to get resources\n");$

WARNING: please, no spaces at the start of a line
#493: FILE: drivers/ptp/ptp_vmclock.c:424:
+                dev_err(dev, "failed to get resources\n");$

ERROR: code indent should use tabs where possible
#494: FILE: drivers/ptp/ptp_vmclock.c:425:
+                return -ENODEV;$

WARNING: please, no spaces at the start of a line
#494: FILE: drivers/ptp/ptp_vmclock.c:425:
+                return -ENODEV;$

ERROR: code indent should use tabs where possible
#495: FILE: drivers/ptp/ptp_vmclock.c:426:
+        }$

WARNING: please, no spaces at the start of a line
#495: FILE: drivers/ptp/ptp_vmclock.c:426:
+        }$

WARNING: space prohibited between function name and open parenthesis '('
#513: FILE: drivers/ptp/ptp_vmclock.c:444:
+	st = devm_kzalloc(dev, sizeof (*st), GFP_KERNEL);

ERROR: code indent should use tabs where possible
#549: FILE: drivers/ptp/ptp_vmclock.c:480:
+        ret = devm_add_action_or_reset(&pdev->dev, vmclock_put_idx, st);$

WARNING: please, no spaces at the start of a line
#549: FILE: drivers/ptp/ptp_vmclock.c:480:
+        ret = devm_add_action_or_reset(&pdev->dev, vmclock_put_idx, st);$

WARNING: line length of 82 exceeds 80 columns
#553: FILE: drivers/ptp/ptp_vmclock.c:484:
+	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")
#636: FILE: drivers/ptp/ptp_vmclock.c:567:
+MODULE_LICENSE("GPL v2");

WARNING: line length of 82 exceeds 80 columns
#643: 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
#720: FILE: include/uapi/linux/vmclock-abi.h:78:
+#define VMCLOCK_TIME_UTC			0	/* Since 1970-01-01 00:00:00z */

WARNING: line length of 88 exceeds 80 columns
#721: FILE: include/uapi/linux/vmclock-abi.h:79:
+#define VMCLOCK_TIME_TAI			1	/* Since 1970-01-01 00:00:00z */

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

WARNING: Possible repeated word: 'the'
#789: FILE: include/uapi/linux/vmclock-abi.h:147:
+	 * This field is based on the the VIRTIO_RTC_LEAP_xxx values as

total: 14 errors, 36 warnings, 12 checks, 780 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 5195d2460754 ("ptp: Add vDSO-style vmclock support") 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.