brcmfmac uses a complicated netdev destructor handling. The
brcmf_net_attach() function just adds a normal destructor and later the
brcmf_add_if() function sets the needs_free_netdev callback.
The normal spatch was not applied correctly to this file, add a patch
before to try to fx this problem manually.
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
patches/0079-netdev-destructor/brcmfmac.patch | 35 +++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
create mode 100644 patches/0079-netdev-destructor/brcmfmac.patch
diff --git a/patches/0079-netdev-destructor/brcmfmac.patch b/patches/0079-netdev-destructor/brcmfmac.patch
new file mode 100644
index 00000000..3f328b26
--- /dev/null
+++ b/patches/0079-netdev-destructor/brcmfmac.patch
@@ -0,0 +1,35 @@
+diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+index b5a561b..6f5466f 100644
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+@@ -462,6 +462,18 @@ static const struct net_device_ops brcmf_netdev_ops_pri = {
+ .ndo_set_rx_mode = brcmf_netdev_set_multicast_list
+ };
+
++#undef netdev_set_priv_destructor
++#define netdev_set_priv_destructor(_dev, _destructor) \
++ (_dev)->destructor = _destructor
++
++#if LINUX_VERSION_IS_LESS(4,12,0)
++static void __brcmf_cfg80211_free_netdev(struct net_device *ndev)
++{
++ brcmf_cfg80211_free_netdev(ndev);
++ free_netdev(ndev);
++}
++#endif
++
+ int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
+ {
+ struct brcmf_pub *drvr = ifp->drvr;
+@@ -634,7 +646,11 @@ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
+ if (!ndev)
+ return ERR_PTR(-ENOMEM);
+
++#if LINUX_VERSION_IS_LESS(4,12,0)
++ ndev->priv_destructor = __brcmf_cfg80211_free_netdev;
++#else
+ ndev->needs_free_netdev = true;
++#endif
+ ifp = netdev_priv(ndev);
+ ifp->ndev = ndev;
+ /* store mapping ifidx to bsscfgidx */
--
2.11.0
--
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