WARNING: line length of 85 exceeds 80 columns
#48: FILE: drivers/virtio/virtio_admin_commands.c:8:
+				   struct virtio_admin_cmd_query_cap_id_result *data)

WARNING: line length of 81 exceeds 80 columns
#149: FILE: include/linux/virtio_admin.h:13:
+ * VIRTIO_CAP_IN_LIST - Check if a capability is supported in the capability list

WARNING: line length of 82 exceeds 80 columns
#150: FILE: include/linux/virtio_admin.h:14:
+ * @cap_list: Pointer to capability list structure containing supported_caps array

CHECK: Macro argument 'cap_list' may be better as '(cap_list)' to avoid precedence issues
#159: FILE: include/linux/virtio_admin.h:23:
+#define VIRTIO_CAP_IN_LIST(cap_list, cap) \
+	(!!(1 & (le64_to_cpu(cap_list->supported_caps[cap / 64]) >> cap % 64)))

CHECK: Macro argument 'cap' may be better as '(cap)' to avoid precedence issues
#159: FILE: include/linux/virtio_admin.h:23:
+#define VIRTIO_CAP_IN_LIST(cap_list, cap) \
+	(!!(1 & (le64_to_cpu(cap_list->supported_caps[cap / 64]) >> cap % 64)))

WARNING: line length of 86 exceeds 80 columns
#175: FILE: include/linux/virtio_admin.h:39:
+				   struct virtio_admin_cmd_query_cap_id_result *data);

WARNING: line length of 82 exceeds 80 columns
#189: FILE: include/linux/virtio_admin.h:53:
+ * operations or capability retrieval, or a negative error code on other failures.

WARNING: line length of 86 exceeds 80 columns
#234: FILE: include/uapi/linux/virtio_pci.h:326:
+#define VIRTIO_ADMIN_CAP_ID_ARRAY_SIZE __KERNEL_DIV_ROUND_UP(VIRTIO_ADMIN_MAX_CAP, 64)

total: 0 errors, 6 warnings, 2 checks, 196 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 b4691b8f369c ("virtio: Expose generic device capability operations") 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.
total: 0 errors, 6 warnings, 2 checks, 196 lines checked