AuxXxilium/linux_dsm_epyc7002
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mwifiex: set different mac address for interfaces with same bss type

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Multiple interfaces with same bss type could affect each other if
they are sharing the same mac address. In this patch, different
mac address is assigned to new interface which have same bss type
with exist interfaces.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Xinming Hu 2018-02-13 14:10:15 +08:00 committed by Kalle Valo
parent c3b2f7ca41
commit 8641646836
2 changed files with 32 additions and 5 deletions
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24
drivers/net/wireless/marvell/mwifiex/main.c
View File

@ -943,13 +943,26 @@ int mwifiex_set_mac_address(struct mwifiex_private *priv,
struct net_device *dev)
{
int ret;
u64 mac_addr;
u64 mac_addr, old_mac_addr;
if (priv->bss_type != MWIFIEX_BSS_TYPE_P2P)
goto done;
if (priv->bss_type == MWIFIEX_BSS_TYPE_ANY)
return -ENOTSUPP;
mac_addr = ether_addr_to_u64(priv->curr_addr);
mac_addr |= BIT_ULL(MWIFIEX_MAC_LOCAL_ADMIN_BIT);
old_mac_addr = mac_addr;
if (priv->bss_type == MWIFIEX_BSS_TYPE_P2P)
mac_addr |= BIT_ULL(MWIFIEX_MAC_LOCAL_ADMIN_BIT);
if (mwifiex_get_intf_num(priv->adapter, priv->bss_type) > 1) {
/* Set mac address based on bss_type/bss_num */
mac_addr ^= BIT_ULL(priv->bss_type + 8);
mac_addr += priv->bss_num;
}
if (mac_addr == old_mac_addr)
goto done;
u64_to_ether_addr(mac_addr, priv->curr_addr);
/* Send request to firmware */
@ -957,13 +970,14 @@ int mwifiex_set_mac_address(struct mwifiex_private *priv,
HostCmd_ACT_GEN_SET, 0, NULL, true);
if (ret) {
u64_to_ether_addr(old_mac_addr, priv->curr_addr);
mwifiex_dbg(priv->adapter, ERROR,
"set mac address failed: ret=%d\n", ret);
return ret;
}
done:
memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN);
ether_addr_copy(dev->dev_addr, priv->curr_addr);
return 0;
}

13
drivers/net/wireless/marvell/mwifiex/main.h
View File

@ -1280,6 +1280,19 @@ mwifiex_copy_rates(u8 *dest, u32 pos, u8 *src, int len)
return pos;
}
/* This function return interface number with the same bss_type.
*/
static inline u8
mwifiex_get_intf_num(struct mwifiex_adapter *adapter, u8 bss_type)
{
u8 i, num = 0;
for (i = 0; i < adapter->priv_num; i++)
if (adapter->priv[i] && adapter->priv[i]->bss_type == bss_type)
num++;
return num;
}
/*
* This function returns the correct private structure pointer based
* upon the BSS type and BSS number.