From 8c6efda22f5f9f73fc948f517424466be01ae84d Mon Sep 17 00:00:00 2001 From: Arend Van Spriel Date: Wed, 8 Nov 2017 14:36:33 +0100 Subject: [PATCH] brcmfmac: cleanup brcmf_cfg80211_escan() function The function brcmf_cfg80211_escan() was always called with a non-null request parameter and null pointer for this_ssid parameter. Clean up the function removing the dead code path. Reviewed-by: Hante Meuleman Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Franky Lin Signed-off-by: Arend van Spriel Signed-off-by: Kalle Valo --- .../broadcom/brcm80211/brcmfmac/cfg80211.c | 76 ++++------------------ 1 file changed, 11 insertions(+), 65 deletions(-) --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -1072,18 +1072,10 @@ brcmf_do_escan(struct brcmf_if *ifp, str static s32 brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif, - struct cfg80211_scan_request *request, - struct cfg80211_ssid *this_ssid) + struct cfg80211_scan_request *request) { - struct brcmf_if *ifp = vif->ifp; struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); - struct cfg80211_ssid *ssids; - u32 passive_scan; - bool escan_req; - bool spec_scan; s32 err; - struct brcmf_ssid_le ssid_le; - u32 SSID_len; brcmf_dbg(SCAN, "START ESCAN\n"); @@ -1101,8 +1093,8 @@ brcmf_cfg80211_escan(struct wiphy *wiphy cfg->scan_status); return -EAGAIN; } - if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) { - brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state); + if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state)) { + brcmf_err("Connecting: status (%lu)\n", vif->sme_state); return -EAGAIN; } @@ -1110,63 +1102,17 @@ brcmf_cfg80211_escan(struct wiphy *wiphy if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif; - escan_req = false; - if (request) { - /* scan bss */ - ssids = request->ssids; - escan_req = true; - } else { - /* scan in ibss */ - /* we don't do escan in ibss */ - ssids = this_ssid; - } - cfg->scan_request = request; set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status); - if (escan_req) { - cfg->escan_info.run = brcmf_run_escan; - err = brcmf_p2p_scan_prep(wiphy, request, vif); - if (err) - goto scan_out; - - err = brcmf_do_escan(vif->ifp, request); - if (err) - goto scan_out; - } else { - brcmf_dbg(SCAN, "ssid \"%s\", ssid_len (%d)\n", - ssids->ssid, ssids->ssid_len); - memset(&ssid_le, 0, sizeof(ssid_le)); - SSID_len = min_t(u8, sizeof(ssid_le.SSID), ssids->ssid_len); - ssid_le.SSID_len = cpu_to_le32(0); - spec_scan = false; - if (SSID_len) { - memcpy(ssid_le.SSID, ssids->ssid, SSID_len); - ssid_le.SSID_len = cpu_to_le32(SSID_len); - spec_scan = true; - } else - brcmf_dbg(SCAN, "Broadcast scan\n"); - passive_scan = cfg->active_scan ? 0 : 1; - err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN, - passive_scan); - if (err) { - brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err); - goto scan_out; - } - brcmf_scan_config_mpc(ifp, 0); - err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN, &ssid_le, - sizeof(ssid_le)); - if (err) { - if (err == -EBUSY) - brcmf_dbg(INFO, "BUSY: scan for \"%s\" canceled\n", - ssid_le.SSID); - else - brcmf_err("WLC_SCAN error (%d)\n", err); + cfg->escan_info.run = brcmf_run_escan; + err = brcmf_p2p_scan_prep(wiphy, request, vif); + if (err) + goto scan_out; - brcmf_scan_config_mpc(ifp, 1); - goto scan_out; - } - } + err = brcmf_do_escan(vif->ifp, request); + if (err) + goto scan_out; /* Arm scan timeout timer */ mod_timer(&cfg->escan_timeout, jiffies + @@ -1191,7 +1137,7 @@ brcmf_cfg80211_scan(struct wiphy *wiphy, if (!check_vif_up(vif)) return -EIO; - err = brcmf_cfg80211_escan(wiphy, vif, request, NULL); + err = brcmf_cfg80211_escan(wiphy, vif, request); if (err) brcmf_err("scan error (%d)\n", err);