package/kernel/mac80211/patches/364-0003-brcmfmac-allow-wowlan-support-to-be-per-device.patch

   1 From 0b57010fc18e12c19d14379cd739d4eb7c3898f3 Mon Sep 17 00:00:00 2001
   2 From: Arend Van Spriel <arend.vanspriel@broadcom.com>
   3 Date: Fri, 27 Jan 2017 12:27:47 +0000
   4 Subject: [PATCH] brcmfmac: allow wowlan support to be per device
   5
   6 The wowlan support is (partially) determined dynamic by checking the
   7 device/firmware capabilities. So they can differ per device. So it
   8 is not possible to use a static global. Instead use the global as a
   9 template and use kmemdup(). When kmemdup() fails the template is used
  10 unmodified.
  11
  12 Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
  13 Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
  14 Reviewed-by: Franky Lin <franky.lin@broadcom.com>
  15 Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  16 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  17 ---
  18  .../broadcom/brcm80211/brcmfmac/cfg80211.c         | 26 ++++++++++++++++------
  19  1 file changed, 19 insertions(+), 7 deletions(-)
  20
  21 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  22 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  23 @@ -6337,7 +6337,7 @@ static void brcmf_wiphy_pno_params(struc
  24  }
  25
  26  #ifdef CONFIG_PM
  27 -static struct wiphy_wowlan_support brcmf_wowlan_support = {
  28 +static const struct wiphy_wowlan_support brcmf_wowlan_support = {
  29         .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
  30         .n_patterns = BRCMF_WOWL_MAXPATTERNS,
  31         .pattern_max_len = BRCMF_WOWL_MAXPATTERNSIZE,
  32 @@ -6350,21 +6350,29 @@ static void brcmf_wiphy_wowl_params(stru
  33  {
  34  #ifdef CONFIG_PM
  35         struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
  36 +       struct wiphy_wowlan_support *wowl;
  37 +
  38 +       wowl = kmemdup(&brcmf_wowlan_support, sizeof(brcmf_wowlan_support),
  39 +                      GFP_KERNEL);
  40 +       if (!wowl) {
  41 +               brcmf_err("only support basic wowlan features\n");
  42 +               wiphy->wowlan = &brcmf_wowlan_support;
  43 +               return;
  44 +       }
  45
  46         if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) {
  47                 if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_ND)) {
  48 -                       brcmf_wowlan_support.flags |= WIPHY_WOWLAN_NET_DETECT;
  49 -                       brcmf_wowlan_support.max_nd_match_sets =
  50 -                               BRCMF_PNO_MAX_PFN_COUNT;
  51 +                       wowl->flags |= WIPHY_WOWLAN_NET_DETECT;
  52 +                       wowl->max_nd_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
  53                         init_waitqueue_head(&cfg->wowl.nd_data_wait);
  54                 }
  55         }
  56         if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL_GTK)) {
  57 -               brcmf_wowlan_support.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY;
  58 -               brcmf_wowlan_support.flags |= WIPHY_WOWLAN_GTK_REKEY_FAILURE;
  59 +               wowl->flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY;
  60 +               wowl->flags |= WIPHY_WOWLAN_GTK_REKEY_FAILURE;
  61         }
  62
  63 -       wiphy->wowlan = &brcmf_wowlan_support;
  64 +       wiphy->wowlan = wowl;
  65  #endif
  66  }
  67
  68 @@ -6745,6 +6753,10 @@ static void brcmf_free_wiphy(struct wiph
  69                 kfree(wiphy->bands[NL80211_BAND_5GHZ]->channels);
  70                 kfree(wiphy->bands[NL80211_BAND_5GHZ]);
  71         }
  72 +#if IS_ENABLED(CONFIG_PM)
  73 +       if (wiphy->wowlan != &brcmf_wowlan_support)
  74 +               kfree(wiphy->wowlan);
  75 +#endif
  76         wiphy_free(wiphy);
  77  }
  78