ACPIHID_HID_LEN
u8 hid[ACPIHID_HID_LEN];
u8 hid[ACPIHID_HID_LEN];
BUILD_BUG_ON(sizeof(e->ext_hid) != ACPIHID_HID_LEN - 1);
memcpy(hid, &e->ext_hid, ACPIHID_HID_LEN - 1);
hid[ACPIHID_HID_LEN - 1] = '\0';
#define ACPIID_LEN (ACPIHID_UID_LEN + ACPIHID_HID_LEN)
if (strlen(hid) >= ACPIHID_HID_LEN) {