package/kernel/mac80211/patches/brcm/392-v5.4-0001-brcmfmac-move-cfg80211_ops-pointer-to-another-struct.patch

   1 From ba76ff25ee64d5cfc86209d1fbb3c294b2c04412 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
   3 Date: Tue, 3 Sep 2019 06:29:26 +0200
   4 Subject: [PATCH 1/3] brcmfmac: move "cfg80211_ops" pointer to another struct
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 This moves "ops" pointer from "struct brcmf_cfg80211_info" to the
  10 "struct brcmf_pub". This movement makes it possible to allocate wiphy
  11 without attaching cfg80211 (brcmf_cfg80211_attach()). It's required for
  12 later separation of wiphy allocation and driver initialization.
  13
  14 While at it fix also an unlikely memory leak in the brcmf_attach().
  15
  16 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  17 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  18 ---
  19  .../net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c  | 1 -
  20  .../net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h  | 1 -
  21  drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c  | 9 ++++++---
  22  drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h  | 1 +
  23  4 files changed, 7 insertions(+), 5 deletions(-)
  24
  25 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  26 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
  27 @@ -7194,7 +7194,6 @@ void brcmf_cfg80211_detach(struct brcmf_
  28         brcmf_pno_detach(cfg);
  29         brcmf_btcoex_detach(cfg);
  30         wiphy_unregister(cfg->wiphy);
  31 -       kfree(cfg->ops);
  32         wl_deinit_priv(cfg);
  33         brcmf_free_wiphy(cfg->wiphy);
  34         kfree(cfg);
  35 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
  36 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
  37 @@ -292,7 +292,6 @@ struct brcmf_cfg80211_wowl {
  38   */
  39  struct brcmf_cfg80211_info {
  40         struct wiphy *wiphy;
  41 -       struct cfg80211_ops *ops;
  42         struct brcmf_cfg80211_conf *conf;
  43         struct brcmf_p2p_info p2p;
  44         struct brcmf_btcoex_info *btcoex;
  45 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
  46 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
  47 @@ -1245,12 +1245,15 @@ int brcmf_attach(struct device *dev, str
  48                 return -ENOMEM;
  49
  50         wiphy = wiphy_new(ops, sizeof(*drvr));
  51 -       if (!wiphy)
  52 +       if (!wiphy) {
  53 +               kfree(ops);
  54                 return -ENOMEM;
  55 +       }
  56
  57         set_wiphy_dev(wiphy, dev);
  58         drvr = wiphy_priv(wiphy);
  59         drvr->wiphy = wiphy;
  60 +       drvr->ops = ops;
  61
  62         for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++)
  63                 drvr->if2bss[i] = BRCMF_BSSIDX_INVALID;
  64 @@ -1283,12 +1286,10 @@ int brcmf_attach(struct device *dev, str
  65                 goto fail;
  66         }
  67
  68 -       drvr->config->ops = ops;
  69         return 0;
  70
  71  fail:
  72         brcmf_detach(dev);
  73 -       kfree(ops);
  74
  75         return ret;
  76  }
  77 @@ -1379,6 +1380,8 @@ void brcmf_detach(struct device *dev)
  78
  79         bus_if->drvr = NULL;
  80
  81 +       kfree(drvr->ops);
  82 +
  83         wiphy_free(drvr->wiphy);
  84  }
  85
  86 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
  87 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
  88 @@ -97,6 +97,7 @@ struct brcmf_pub {
  89         struct brcmf_bus *bus_if;
  90         struct brcmf_proto *proto;
  91         struct wiphy *wiphy;
  92 +       struct cfg80211_ops *ops;
  93         struct brcmf_cfg80211_info *config;
  94
  95         /* Internal brcmf items */