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domenico
2025-06-24 15:51:28 +02:00
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package/kernel/mac80211/patches/330-v4.18-0001-brcmfmac-check-p2pdev-mac-address-uniqueness.patch Normal file
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@@ -0,0 +1,34 @@
From cb746e47837ad0f35c8ae28e9aacc8eb07916d2a Mon Sep 17 00:00:00 2001
From: Arend Van Spriel <arend.vanspriel@broadcom.com>
Date: Thu, 26 Apr 2018 12:16:47 +0200
Subject: [PATCH] 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>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
@@ -2073,6 +2073,13 @@ static struct wireless_dev *brcmf_p2p_cr
}
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);