From 8fa5fdec09cd379c9ecb8972f344f8f308e0ccf3 Mon Sep 17 00:00:00 2001 From: Arend Van Spriel Date: Mon, 19 Sep 2016 12:09:55 +0100 Subject: [PATCH] brcmfmac: remove worker from .ndo_set_mac_address() callback As it turns out there is no need to use a worker for the callback because it is not called from atomic context. Reported-by: Dan Williams Reviewed-by: Hante Meuleman Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Franky Lin Signed-off-by: Arend van Spriel Signed-off-by: Kalle Valo --- .../wireless/broadcom/brcm80211/brcmfmac/core.c | 39 ++++++++-------------- .../wireless/broadcom/brcm80211/brcmfmac/core.h | 2 -- 2 files changed, 13 insertions(+), 28 deletions(-) --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c @@ -136,27 +136,6 @@ static void _brcmf_set_multicast_list(st err); } -static void -_brcmf_set_mac_address(struct work_struct *work) -{ - struct brcmf_if *ifp; - s32 err; - - ifp = container_of(work, struct brcmf_if, setmacaddr_work); - - brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx); - - err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", ifp->mac_addr, - ETH_ALEN); - if (err < 0) { - brcmf_err("Setting cur_etheraddr failed, %d\n", err); - } else { - brcmf_dbg(TRACE, "MAC address updated to %pM\n", - ifp->mac_addr); - memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN); - } -} - #if IS_ENABLED(CONFIG_IPV6) static void _brcmf_update_ndtable(struct work_struct *work) { @@ -190,10 +169,20 @@ static int brcmf_netdev_set_mac_address( { struct brcmf_if *ifp = netdev_priv(ndev); struct sockaddr *sa = (struct sockaddr *)addr; + int err; - memcpy(&ifp->mac_addr, sa->sa_data, ETH_ALEN); - schedule_work(&ifp->setmacaddr_work); - return 0; + brcmf_dbg(TRACE, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx); + + err = brcmf_fil_iovar_data_set(ifp, "cur_etheraddr", sa->sa_data, + ETH_ALEN); + if (err < 0) { + brcmf_err("Setting cur_etheraddr failed, %d\n", err); + } else { + brcmf_dbg(TRACE, "updated to %pM\n", sa->sa_data); + memcpy(ifp->mac_addr, sa->sa_data, ETH_ALEN); + memcpy(ifp->ndev->dev_addr, ifp->mac_addr, ETH_ALEN); + } + return err; } static void brcmf_netdev_set_multicast_list(struct net_device *ndev) @@ -525,7 +514,6 @@ int brcmf_net_attach(struct brcmf_if *if /* set the mac address */ memcpy(ndev->dev_addr, ifp->mac_addr, ETH_ALEN); - INIT_WORK(&ifp->setmacaddr_work, _brcmf_set_mac_address); INIT_WORK(&ifp->multicast_work, _brcmf_set_multicast_list); INIT_WORK(&ifp->ndoffload_work, _brcmf_update_ndtable); @@ -730,7 +718,6 @@ static void brcmf_del_if(struct brcmf_pu } if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) { - cancel_work_sync(&ifp->setmacaddr_work); cancel_work_sync(&ifp->multicast_work); cancel_work_sync(&ifp->ndoffload_work); } --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h @@ -176,7 +176,6 @@ enum brcmf_netif_stop_reason { * @vif: points to cfg80211 specific interface information. * @ndev: associated network device. * @stats: interface specific network statistics. - * @setmacaddr_work: worker object for setting mac address. * @multicast_work: worker object for multicast provisioning. * @ndoffload_work: worker object for neighbor discovery offload configuration. * @fws_desc: interface specific firmware-signalling descriptor. @@ -193,7 +192,6 @@ struct brcmf_if { struct brcmf_cfg80211_vif *vif; struct net_device *ndev; struct net_device_stats stats; - struct work_struct setmacaddr_work; struct work_struct multicast_work; struct work_struct ndoffload_work; struct brcmf_fws_mac_descriptor *fws_desc;