diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2021-08-22 16:57:27 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-22 23:45:40 +0300 |
| commit | 96ce96f151261e33a170cecb8a4fa664b45743ab (patch) | |
| tree | 254eecc218fb74291414de2fc08bbc3bda32a4f7 /drivers/net/ethernet/chelsio | |
| parent | 58a9b5d2621e725526a63847ae77b3a4c2c2bf93 (diff) | |
| download | linux-96ce96f151261e33a170cecb8a4fa664b45743ab.tar.xz | |
cxgb4: Validate VPD checksum with pci_vpd_check_csum()
Validate the VPD checksum with pci_vpd_check_csum() to simplify the code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 6606fb8b3e42..1ae3ee9948ba 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -2745,7 +2745,7 @@ int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p) { int i, ret = 0, addr; int ec, sn, pn, na; - u8 *vpd, csum, base_val = 0; + u8 *vpd, base_val = 0; unsigned int vpdr_len, kw_offset, id_len; vpd = vmalloc(VPD_LEN); @@ -2800,13 +2800,9 @@ int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p) var += PCI_VPD_INFO_FLD_HDR_SIZE; \ } while (0) - FIND_VPD_KW(i, "RV"); - for (csum = 0; i >= 0; i--) - csum += vpd[i]; - - if (csum) { - dev_err(adapter->pdev_dev, - "corrupted VPD EEPROM, actual csum %u\n", csum); + ret = pci_vpd_check_csum(vpd, VPD_LEN); + if (ret) { + dev_err(adapter->pdev_dev, "VPD checksum incorrect or missing\n"); ret = -EINVAL; goto out; } |