Signed-off-by: Jason Gerecke <killert...@gmail.com>
---
3.17/wacom_sys.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/3.17/wacom_sys.c b/3.17/wacom_sys.c
index 8b841e5..40a70f3 100644
--- a/3.17/wacom_sys.c
+++ b/3.17/wacom_sys.c
@@ -1321,6 +1321,14 @@ static void wacom_calculate_res(struct wacom_features
*features)
features->unitExpo);
}
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(3,19,0)
+static int wacom_hid_report_len(struct hid_report *report)
+{
+ /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */
+ return ((report->size - 1) >> 3) + 1 + (report->id > 0);
+}
+#endif
+
static size_t wacom_compute_pktlen(struct hid_device *hdev)
{
struct hid_report_enum *report_enum;
@@ -1330,7 +1338,11 @@ static size_t wacom_compute_pktlen(struct hid_device
*hdev)
report_enum = hdev->report_enum + HID_INPUT_REPORT;
list_for_each_entry(report, &report_enum->report_list, list) {
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(3,18,0)
+ size_t report_size = wacom_hid_report_len(report);
+#else
size_t report_size = hid_report_len(report);
+#endif
if (report_size > size)
size = report_size;
}
--
2.1.3
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