netdev - [PATCH 5/7] cxgb4: Use pci_vpd_find_id

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Message-ID: <19ea2e9b-6e94-288a-6612-88db01b1b417@gmail.com>
Date:   Thu, 26 Aug 2021 20:56:22 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Raju Rangoju <rajur@...lsio.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...emloft.net>
Cc:     "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH 5/7] cxgb4: Use pci_vpd_find_id_string() to find VPD id string

Use new VPD API function pci_vpd_find_id_string() for finding the VPD
id string. This simplifies the code and avoids using VPD low-level
function pci_vpd_lrdt_size().

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 5e8ac42ac..64144b617 100644
--- 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);
-- 
2.33.0