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tg3: Dynamically allocate VPD data memory

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This patch eases stack pressure by dynamically allocating the memory
used to temporarily store VPD data.

Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2010-09-15 09:00:00 +00:00 committed by David S. Miller
parent 02e96080af
commit a4a8bb15ae
1 changed files with 11 additions and 4 deletions
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15
drivers/net/tg3.c
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@ -12415,14 +12415,18 @@ static int __devinit tg3_phy_probe(struct tg3 *tp)
static void __devinit tg3_read_vpd(struct tg3 *tp)
{
u8 vpd_data[TG3_NVM_VPD_LEN];
u8 *vpd_data;
unsigned int block_end, rosize, len;
int j, i = 0;
u32 magic;
if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
tg3_nvram_read(tp, 0x0, &magic))
goto out_not_found;
goto out_no_vpd;
vpd_data = kmalloc(TG3_NVM_VPD_LEN, GFP_KERNEL);
if (!vpd_data)
goto out_no_vpd;
if (magic == TG3_EEPROM_MAGIC) {
for (i = 0; i < TG3_NVM_VPD_LEN; i += 4) {
@ -12506,9 +12510,12 @@ static void __devinit tg3_read_vpd(struct tg3 *tp)
memcpy(tp->board_part_number, &vpd_data[i], len);
return;
out_not_found:
kfree(vpd_data);
if (!tp->board_part_number[0])
return;
out_no_vpd:
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
strcpy(tp->board_part_number, "BCM95906");
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&