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brcmfmac: move wiphy_unregister() call to brcmf_cfg80211_detach() 

The wiphy_unregister() call was done in brcmf_free_vif() when the
last interface was being removed. This is not the obvious place to
do that. This patch moves it to the brcmf_cfg80211_detach(). This
removes the need to keep count of interfaces.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2014-01-06 12:40:47 +01:00 committed by John W. Linville
parent 43dffbc6be
commit 427dec5fc8
3 changed files with 18 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/net/wireless/brcm80211/brcmfmac/p2p.c
View File

@ -1956,21 +1956,21 @@ s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg)
err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1);
if (err < 0) {
brcmf_err("set p2p_disc error\n");
brcmf_free_vif(cfg, p2p_vif);
brcmf_free_vif(p2p_vif);
goto exit;
}
/* obtain bsscfg index for P2P discovery */
err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bssidx);
if (err < 0) {
brcmf_err("retrieving discover bsscfg index failed\n");
brcmf_free_vif(cfg, p2p_vif);
brcmf_free_vif(p2p_vif);
goto exit;
}
/* Verify that firmware uses same bssidx as driver !! */
if (p2p_ifp->bssidx != bssidx) {
brcmf_err("Incorrect bssidx=%d, compared to p2p_ifp->bssidx=%d\n",
bssidx, p2p_ifp->bssidx);
brcmf_free_vif(cfg, p2p_vif);
brcmf_free_vif(p2p_vif);
goto exit;
}
@ -1998,7 +1998,7 @@ void brcmf_p2p_detach(struct brcmf_p2p_info *p2p)
brcmf_p2p_cancel_remain_on_channel(vif->ifp);
brcmf_p2p_deinit_discovery(p2p);
/* remove discovery interface */
brcmf_free_vif(p2p->cfg, vif);
brcmf_free_vif(vif);
p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL;
}
/* just set it all to zero */
@ -2223,7 +2223,7 @@ static struct wireless_dev *brcmf_p2p_create_p2pdev(struct brcmf_p2p_info *p2p,
return &p2p_vif->wdev;
fail:
brcmf_free_vif(p2p->cfg, p2p_vif);
brcmf_free_vif(p2p_vif);
return ERR_PTR(err);
}
@ -2232,12 +2232,12 @@ fail:
*
* @vif: virtual interface object to delete.
*/
static void brcmf_p2p_delete_p2pdev(struct brcmf_cfg80211_info *cfg,
static void brcmf_p2p_delete_p2pdev(struct brcmf_p2p_info *p2p,
struct brcmf_cfg80211_vif *vif)
{
cfg80211_unregister_wdev(&vif->wdev);
cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL;
brcmf_free_vif(cfg, vif);
p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL;
brcmf_free_vif(vif);
}
/**
@ -2247,15 +2247,13 @@ static void brcmf_p2p_delete_p2pdev(struct brcmf_cfg80211_info *cfg,
*/
static void brcmf_p2p_free_p2p_if(struct net_device *ndev)
{
struct brcmf_cfg80211_info *cfg;
struct brcmf_cfg80211_vif *vif;
struct brcmf_if *ifp;
ifp = netdev_priv(ndev);
cfg = ifp->drvr->config;
vif = ifp->vif;
brcmf_free_vif(cfg, vif);
brcmf_free_vif(vif);
free_netdev(ifp->ndev);
}
@ -2350,7 +2348,7 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
return &ifp->vif->wdev;
fail:
brcmf_free_vif(cfg, vif);
brcmf_free_vif(vif);
return ERR_PTR(err);
}
@ -2359,8 +2357,6 @@ fail:
*
* @wiphy: wiphy device of interface.
* @wdev: wireless device of interface.
*
* TODO: not yet supported.
*/
int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
{
@ -2386,7 +2382,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
break;
case NL80211_IFTYPE_P2P_DEVICE:
brcmf_p2p_delete_p2pdev(cfg, vif);
brcmf_p2p_delete_p2pdev(p2p, vif);
return 0;
default:
return -ENOTSUPP;

26
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
View File

@ -4360,9 +4360,6 @@ struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
{
struct brcmf_cfg80211_vif *vif;
if (cfg->vif_cnt == BRCMF_IFACE_MAX_CNT)
return ERR_PTR(-ENOSPC);
brcmf_dbg(TRACE, "allocating virtual interface (size=%zu)\n",
sizeof(*vif));
vif = kzalloc(sizeof(*vif), GFP_KERNEL);
@ -4379,21 +4376,13 @@ struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
brcmf_init_prof(&vif->profile);
list_add_tail(&vif->list, &cfg->vif_list);
cfg->vif_cnt++;
return vif;
}
void brcmf_free_vif(struct brcmf_cfg80211_info *cfg,
struct brcmf_cfg80211_vif *vif)
void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
{
list_del(&vif->list);
cfg->vif_cnt--;
kfree(vif);
if (!cfg->vif_cnt) {
wiphy_unregister(cfg->wiphy);
wiphy_free(cfg->wiphy);
}
}
static bool brcmf_is_linkup(const struct brcmf_event_msg *e)
@ -4980,20 +4969,17 @@ cfg80211_p2p_attach_out:
wl_deinit_priv(cfg);
cfg80211_attach_out:
brcmf_free_vif(cfg, vif);
brcmf_free_vif(vif);
return NULL;
}
void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
{
struct brcmf_cfg80211_vif *vif;
struct brcmf_cfg80211_vif *tmp;
wl_deinit_priv(cfg);
WARN_ON(!list_empty(&cfg->vif_list));
wiphy_unregister(cfg->wiphy);
brcmf_btcoex_detach(cfg);
list_for_each_entry_safe(vif, tmp, &cfg->vif_list, list) {
brcmf_free_vif(cfg, vif);
}
wl_deinit_priv(cfg);
wiphy_free(cfg->wiphy);
}
static s32

4
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
View File

@ -412,7 +412,6 @@ struct brcmf_cfg80211_info {
struct work_struct escan_timeout_work;
u8 *escan_ioctl_buf;
struct list_head vif_list;
u8 vif_cnt;
struct brcmf_cfg80211_vif_event vif_event;
struct completion vif_disabled;
struct brcmu_d11inf d11inf;
@ -487,8 +486,7 @@ enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp);
struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
enum nl80211_iftype type,
bool pm_block);
void brcmf_free_vif(struct brcmf_cfg80211_info *cfg,
struct brcmf_cfg80211_vif *vif);
void brcmf_free_vif(struct brcmf_cfg80211_vif *vif);
s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
const u8 *vndr_ie_buf, u32 vndr_ie_len);