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brcmfmac: check p2pdev mac address uniqueness 

The mac address for p2pdev must be different from the primary interface
due to firmware requirement. Add an explicit check for this requirement
if user-space provides a mac address.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Arend Van Spriel 2018-04-26 12:16:47 +02:00 committed by Kalle Valo
parent 3ea0a58cf9
commit cb746e4783
1 changed files with 7 additions and 0 deletions
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7
drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
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@ -2073,6 +2073,13 @@ static struct wireless_dev *brcmf_p2p_create_p2pdev(struct brcmf_p2p_info *p2p,
}
pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
/* firmware requires unique mac address for p2pdev interface */
if (addr && ether_addr_equal(addr, pri_ifp->mac_addr)) {
brcmf_err("discovery vif must be different from primary interface\n");
return ERR_PTR(-EINVAL);
}
brcmf_p2p_generate_bss_mac(p2p, addr);
brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr);