cxgb4: Use pci_vpd_find_id_string() to find VPD ID string

Use pci_vpd_find_id_string() to find the VPD ID string. This simplifies the
code and avoids the need for pci_vpd_lrdt_size().

Link: https://lore.kernel.org/r/19ea2e9b-6e94-288a-6612-88db01b1b417@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 5e8ac42..64144b6 100644 (file)
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -2744,7 +2744,7 @@ int t4_seeprom_wp(struct adapter *adapter, bool enable)
 int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p)
 {
        unsigned int id_len, pn_len, sn_len, na_len;
-       int sn, pn, na, addr, ret = 0;
+       int id, sn, pn, na, addr, ret = 0;
        u8 *vpd, base_val = 0;
 
        vpd = vmalloc(VPD_LEN);
@@ -2764,13 +2764,10 @@ int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p)
        if (ret < 0)
                goto out;
 
-       if (vpd[0] != PCI_VPD_LRDT_ID_STRING) {
-               dev_err(adapter->pdev_dev, "missing VPD ID string\n");
-               ret = -EINVAL;
+       ret = pci_vpd_find_id_string(vpd, VPD_LEN, &id_len);
+       if (ret < 0)
                goto out;
-       }
-
-       id_len = pci_vpd_lrdt_size(vpd);
+       id = ret;
 
        ret = pci_vpd_check_csum(vpd, VPD_LEN);
        if (ret) {
@@ -2796,7 +2793,7 @@ int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p)
                goto out;
        na = ret;
 
-       memcpy(p->id, vpd + PCI_VPD_LRDT_TAG_SIZE, min_t(int, id_len, ID_LEN));
+       memcpy(p->id, vpd + id, min_t(int, id_len, ID_LEN));
        strim(p->id);
        memcpy(p->sn, vpd + sn, min_t(int, sn_len, SERNUM_LEN));
        strim(p->sn);