From 0b57010fc18e12c19d14379cd739d4eb7c3898f3 Mon Sep 17 00:00:00 2001 From: Arend Van Spriel Date: Fri, 27 Jan 2017 12:27:47 +0000 Subject: [PATCH] brcmfmac: allow wowlan support to be per device The wowlan support is (partially) determined dynamic by checking the device/firmware capabilities. So they can differ per device. So it is not possible to use a static global. Instead use the global as a template and use kmemdup(). When kmemdup() fails the template is used unmodified. 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 | 26 ++++++++++++++----- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index c81d78ff0113..ab1f9f2395ad 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -6339,7 +6339,7 @@ static void brcmf_wiphy_pno_params(struct wiphy *wiphy) } #ifdef CONFIG_PM -static struct wiphy_wowlan_support brcmf_wowlan_support = { +static const struct wiphy_wowlan_support brcmf_wowlan_support = { .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT, .n_patterns = BRCMF_WOWL_MAXPATTERNS, .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE, @@ -6352,21 +6352,29 @@ static void brcmf_wiphy_wowl_params(struct wiphy *wiphy, struct brcmf_if *ifp) { #ifdef CONFIG_PM struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); + struct wiphy_wowlan_support *wowl; + + wowl = kmemdup(&brcmf_wowlan_support, sizeof(brcmf_wowlan_support), + GFP_KERNEL); + if (!wowl) { + brcmf_err("only support basic wowlan features\n"); + wiphy->wowlan = &brcmf_wowlan_support; + return; + } if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) { if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ND)) { - brcmf_wowlan_support.flags |= WIPHY_WOWLAN_NET_DETECT; - brcmf_wowlan_support.max_nd_match_sets = - BRCMF_PNO_MAX_PFN_COUNT; + wowl->flags |= WIPHY_WOWLAN_NET_DETECT; + wowl->max_nd_match_sets = BRCMF_PNO_MAX_PFN_COUNT; init_waitqueue_head(&cfg->wowl.nd_data_wait); } } if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) { - brcmf_wowlan_support.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY; - brcmf_wowlan_support.flags |= WIPHY_WOWLAN_GTK_REKEY_FAILURE; + wowl->flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY; + wowl->flags |= WIPHY_WOWLAN_GTK_REKEY_FAILURE; } - wiphy->wowlan = &brcmf_wowlan_support; + wiphy->wowlan = wowl; #endif } @@ -6747,6 +6755,10 @@ static void brcmf_free_wiphy(struct wiphy *wiphy) kfree(wiphy->bands[NL80211_BAND_5GHZ]->channels); kfree(wiphy->bands[NL80211_BAND_5GHZ]); } +#if IS_ENABLED(CONFIG_PM) + if (wiphy->wowlan != &brcmf_wowlan_support) + kfree(wiphy->wowlan); +#endif wiphy_free(wiphy); }