Use new VPD API function pci_vpd_alloc() for dynamically allocating
a properly sized buffer and reading the full VPD data into it.
This allows to simplify the code, and we don't have to make
assumptions on VPD size any longer.
Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx>
---
drivers/net/ethernet/broadcom/tg3.c | 27 ++++++++++-----------------
drivers/net/ethernet/broadcom/tg3.h | 1 -
2 files changed, 10 insertions(+), 18 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 6f82eeaa4..fd4522c81 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -12791,7 +12791,7 @@ static void tg3_get_ethtool_stats(struct net_device *dev,
memset(tmp_stats, 0, sizeof(struct tg3_ethtool_stats));
}
-static __be32 *tg3_vpd_readblock(struct tg3 *tp, u32 *vpdlen)
+static __be32 *tg3_vpd_readblock(struct tg3 *tp, unsigned int *vpdlen)
{
int i;
__be32 *buf;
@@ -12825,15 +12825,11 @@ static __be32 *tg3_vpd_readblock(struct tg3 *tp, u32 *vpdlen)
offset = TG3_NVM_VPD_OFF;
len = TG3_NVM_VPD_LEN;
}
- } else {
- len = TG3_NVM_PCI_VPD_MAX_LEN;
- }
- buf = kmalloc(len, GFP_KERNEL);
- if (buf == NULL)
- return NULL;
+ buf = kmalloc(len, GFP_KERNEL);
+ if (!buf)
+ return NULL;
- if (magic == TG3_EEPROM_MAGIC) {
for (i = 0; i < len; i += 4) {
/* The data is in little-endian format in NVRAM.
* Use the big-endian read routines to preserve
@@ -12844,12 +12840,9 @@ static __be32 *tg3_vpd_readblock(struct tg3 *tp, u32 *vpdlen)
}
*vpdlen = len;
} else {
- ssize_t cnt;
-
- cnt = pci_read_vpd(tp->pdev, 0, len, (u8 *)buf);
- if (cnt < 0)
- goto error;
- *vpdlen = cnt;
+ buf = pci_vpd_alloc(tp->pdev, vpdlen);
+ if (IS_ERR(buf))
+ return NULL;
}
return buf;
@@ -12871,9 +12864,10 @@ static __be32 *tg3_vpd_readblock(struct tg3 *tp, u32 *vpdlen)
static int tg3_test_nvram(struct tg3 *tp)
{
- u32 csum, magic, len;
+ u32 csum, magic;
__be32 *buf;
int i, j, k, err = 0, size;
+ unsigned int len;
if (tg3_flag(tp, NO_NVRAM))
return 0;
@@ -15621,8 +15615,7 @@ static int tg3_phy_probe(struct tg3 *tp)
static void tg3_read_vpd(struct tg3 *tp)
{
u8 *vpd_data;
- unsigned int block_end, rosize, len;
- u32 vpdlen;
+ unsigned int block_end, rosize, len, vpdlen;
int j, i = 0;
vpd_data = (u8 *)tg3_vpd_readblock(tp, &vpdlen);
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 46ec4fdfd..1000c8940 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -2101,7 +2101,6 @@
/* Hardware Legacy NVRAM layout */
#define TG3_NVM_VPD_OFF 0x100
#define TG3_NVM_VPD_LEN 256
-#define TG3_NVM_PCI_VPD_MAX_LEN 512
/* Hardware Selfboot NVRAM layout */
#define TG3_NVM_HWSB_CFG1 0x00000004
--
2.32.0
