diff options
Diffstat (limited to 'package/kernel/mac80211/patches/322-v4.16-0002-brcmfmac-fix-P2P_DEVICE-ethernet-address-generation.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/322-v4.16-0002-brcmfmac-fix-P2P_DEVICE-ethernet-address-generation.patch | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/322-v4.16-0002-brcmfmac-fix-P2P_DEVICE-ethernet-address-generation.patch b/package/kernel/mac80211/patches/322-v4.16-0002-brcmfmac-fix-P2P_DEVICE-ethernet-address-generation.patch new file mode 100644 index 0000000000..20e16ad23f --- /dev/null +++ b/package/kernel/mac80211/patches/322-v4.16-0002-brcmfmac-fix-P2P_DEVICE-ethernet-address-generation.patch @@ -0,0 +1,64 @@ +From 455f3e76cfc0d893585a5f358b9ddbe9c1e1e53b Mon Sep 17 00:00:00 2001 +From: Arend Van Spriel <arend.vanspriel@broadcom.com> +Date: Wed, 28 Feb 2018 21:15:20 +0100 +Subject: [PATCH] brcmfmac: fix P2P_DEVICE ethernet address generation + +The firmware has a requirement that the P2P_DEVICE address should +be different from the address of the primary interface. When not +specified by user-space, the driver generates the MAC address for +the P2P_DEVICE interface using the MAC address of the primary +interface and setting the locally administered bit. However, the MAC +address of the primary interface may already have that bit set causing +the creation of the P2P_DEVICE interface to fail with -EBUSY. Fix this +by using a random address instead to determine the P2P_DEVICE address. + +Cc: stable@vger.kernel.org # 3.10.y +Reported-by: Hans de Goede <hdegoede@redhat.com> +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> +--- + .../net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 24 ++++++++++------------ + 1 file changed, 11 insertions(+), 13 deletions(-) + +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c +@@ -462,25 +462,23 @@ static int brcmf_p2p_set_firmware(struct + * @dev_addr: optional device address. + * + * P2P needs mac addresses for P2P device and interface. If no device +- * address it specified, these are derived from the primary net device, ie. +- * the permanent ethernet address of the device. ++ * address it specified, these are derived from a random ethernet ++ * address. + */ + static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p, u8 *dev_addr) + { +- struct brcmf_if *pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; +- bool local_admin = false; ++ bool random_addr = false; + +- if (!dev_addr || is_zero_ether_addr(dev_addr)) { +- dev_addr = pri_ifp->mac_addr; +- local_admin = true; +- } ++ if (!dev_addr || is_zero_ether_addr(dev_addr)) ++ random_addr = true; + +- /* Generate the P2P Device Address. This consists of the device's +- * primary MAC address with the locally administered bit set. ++ /* Generate the P2P Device Address obtaining a random ethernet ++ * address with the locally administered bit set. + */ +- memcpy(p2p->dev_addr, dev_addr, ETH_ALEN); +- if (local_admin) +- p2p->dev_addr[0] |= 0x02; ++ if (random_addr) ++ eth_random_addr(p2p->dev_addr); ++ else ++ memcpy(p2p->dev_addr, dev_addr, ETH_ALEN); + + /* Generate the P2P Interface Address. If the discovery and connection + * BSSCFGs need to simultaneously co-exist, then this address must be |