--- /dev/null
+From ba76ff25ee64d5cfc86209d1fbb3c294b2c04412 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 3 Sep 2019 06:29:26 +0200
+Subject: [PATCH 1/3] brcmfmac: move "cfg80211_ops" pointer to another struct
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This moves "ops" pointer from "struct brcmf_cfg80211_info" to the
+"struct brcmf_pub". This movement makes it possible to allocate wiphy
+without attaching cfg80211 (brcmf_cfg80211_attach()). It's required for
+later separation of wiphy allocation and driver initialization.
+
+While at it fix also an unlikely memory leak in the brcmf_attach().
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
+---
+ .../net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 1 -
+ .../net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h | 1 -
+ drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 9 ++++++---
+ drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h | 1 +
+ 4 files changed, 7 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+@@ -7194,7 +7194,6 @@ void brcmf_cfg80211_detach(struct brcmf_
+ brcmf_pno_detach(cfg);
+ brcmf_btcoex_detach(cfg);
+ wiphy_unregister(cfg->wiphy);
+- kfree(cfg->ops);
+ wl_deinit_priv(cfg);
+ brcmf_free_wiphy(cfg->wiphy);
+ kfree(cfg);
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
+@@ -292,7 +292,6 @@ struct brcmf_cfg80211_wowl {
+ */
+ struct brcmf_cfg80211_info {
+ struct wiphy *wiphy;
+- struct cfg80211_ops *ops;
+ struct brcmf_cfg80211_conf *conf;
+ struct brcmf_p2p_info p2p;
+ struct brcmf_btcoex_info *btcoex;
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+@@ -1245,12 +1245,15 @@ int brcmf_attach(struct device *dev, str
+ return -ENOMEM;
+
+ wiphy = wiphy_new(ops, sizeof(*drvr));
+- if (!wiphy)
++ if (!wiphy) {
++ kfree(ops);
+ return -ENOMEM;
++ }
+
+ set_wiphy_dev(wiphy, dev);
+ drvr = wiphy_priv(wiphy);
+ drvr->wiphy = wiphy;
++ drvr->ops = ops;
+
+ for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++)
+ drvr->if2bss[i] = BRCMF_BSSIDX_INVALID;
+@@ -1283,12 +1286,10 @@ int brcmf_attach(struct device *dev, str
+ goto fail;
+ }
+
+- drvr->config->ops = ops;
+ return 0;
+
+ fail:
+ brcmf_detach(dev);
+- kfree(ops);
+
+ return ret;
+ }
+@@ -1374,6 +1375,8 @@ void brcmf_detach(struct device *dev)
+
+ bus_if->drvr = NULL;
+
++ kfree(drvr->ops);
++
+ wiphy_free(drvr->wiphy);
+ }
+
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
+@@ -97,6 +97,7 @@ struct brcmf_pub {
+ struct brcmf_bus *bus_if;
+ struct brcmf_proto *proto;
+ struct wiphy *wiphy;
++ struct cfg80211_ops *ops;
+ struct brcmf_cfg80211_info *config;
+
+ /* Internal brcmf items */
--- /dev/null
+From 450914c39f88d1adada26256360dea7050ff4e83 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 3 Sep 2019 06:29:27 +0200
+Subject: [PATCH 2/3] brcmfmac: split brcmf_attach() and brcmf_detach()
+ functions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Move code allocating/freeing wiphy out of above functions. This will
+allow reinitializing the driver (e.g. on some error) without allocating
+a new wiphy.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
+Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
+---
+ .../broadcom/brcm80211/brcmfmac/bus.h | 4 ++-
+ .../broadcom/brcm80211/brcmfmac/core.c | 33 ++++++++++++++----
+ .../broadcom/brcm80211/brcmfmac/pcie.c | 13 +++++--
+ .../broadcom/brcm80211/brcmfmac/sdio.c | 15 ++++++--
+ .../broadcom/brcm80211/brcmfmac/usb.c | 34 +++++++++++++++----
+ 5 files changed, 80 insertions(+), 19 deletions(-)
+
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
+@@ -253,10 +253,12 @@ void brcmf_rx_frame(struct device *dev,
+ /* Receive async event packet from firmware. Callee disposes of rxp. */
+ void brcmf_rx_event(struct device *dev, struct sk_buff *rxp);
+
++int brcmf_alloc(struct device *dev, struct brcmf_mp_device *settings);
+ /* Indication from bus module regarding presence/insertion of dongle. */
+-int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings);
++int brcmf_attach(struct device *dev);
+ /* Indication from bus module regarding removal/absence of dongle */
+ void brcmf_detach(struct device *dev);
++void brcmf_free(struct device *dev);
+ /* Indication from bus module that dongle should be reset */
+ void brcmf_dev_reset(struct device *dev);
+ /* Request from bus module to initiate a coredump */
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+@@ -1230,13 +1230,11 @@ fail:
+ return ret;
+ }
+
+-int brcmf_attach(struct device *dev, struct brcmf_mp_device *settings)
++int brcmf_alloc(struct device *dev, struct brcmf_mp_device *settings)
+ {
+ struct wiphy *wiphy;
+ struct cfg80211_ops *ops;
+ struct brcmf_pub *drvr = NULL;
+- int ret = 0;
+- int i;
+
+ brcmf_dbg(TRACE, "Enter\n");
+
+@@ -1254,6 +1252,21 @@ int brcmf_attach(struct device *dev, str
+ drvr = wiphy_priv(wiphy);
+ drvr->wiphy = wiphy;
+ drvr->ops = ops;
++ drvr->bus_if = dev_get_drvdata(dev);
++ drvr->bus_if->drvr = drvr;
++ drvr->settings = settings;
++
++ return 0;
++}
++
++int brcmf_attach(struct device *dev)
++{
++ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
++ struct brcmf_pub *drvr = bus_if->drvr;
++ int ret = 0;
++ int i;
++
++ brcmf_dbg(TRACE, "Enter\n");
+
+ for (i = 0; i < ARRAY_SIZE(drvr->if2bss); i++)
+ drvr->if2bss[i] = BRCMF_BSSIDX_INVALID;
+@@ -1262,9 +1275,6 @@ int brcmf_attach(struct device *dev, str
+
+ /* Link to bus module */
+ drvr->hdrlen = 0;
+- drvr->bus_if = dev_get_drvdata(dev);
+- drvr->bus_if->drvr = drvr;
+- drvr->settings = settings;
+
+ /* Attach and link in the protocol */
+ ret = brcmf_proto_attach(drvr);
+@@ -1280,7 +1290,7 @@ int brcmf_attach(struct device *dev, str
+ /* attach firmware event handler */
+ brcmf_fweh_attach(drvr);
+
+- ret = brcmf_bus_started(drvr, ops);
++ ret = brcmf_bus_started(drvr, drvr->ops);
+ if (ret != 0) {
+ bphy_err(drvr, "dongle is not responding: err=%d\n", ret);
+ goto fail;
+@@ -1372,6 +1382,15 @@ void brcmf_detach(struct device *dev)
+ brcmf_cfg80211_detach(drvr->config);
+ drvr->config = NULL;
+ }
++}
++
++void brcmf_free(struct device *dev)
++{
++ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
++ struct brcmf_pub *drvr = bus_if->drvr;
++
++ if (!drvr)
++ return;
+
+ bus_if->drvr = NULL;
+
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+@@ -1430,6 +1430,7 @@ static int brcmf_pcie_reset(struct devic
+ brcmf_pcie_bus_console_read(devinfo, true);
+
+ brcmf_detach(dev);
++ brcmf_free(dev);
+
+ brcmf_pcie_release_irq(devinfo);
+ brcmf_pcie_release_scratchbuffers(devinfo);
+@@ -1824,11 +1825,18 @@ static void brcmf_pcie_setup(struct devi
+
+ brcmf_pcie_intr_enable(devinfo);
+ brcmf_pcie_hostready(devinfo);
+- if (brcmf_attach(&devinfo->pdev->dev, devinfo->settings) == 0)
+- return;
++
++ ret = brcmf_alloc(&devinfo->pdev->dev, devinfo->settings);
++ if (ret)
++ goto fail;
++ ret = brcmf_attach(&devinfo->pdev->dev);
++ if (ret)
++ goto fail;
+
+ brcmf_pcie_bus_console_read(devinfo, false);
+
++ return;
++
+ fail:
+ device_release_driver(dev);
+ }
+@@ -1971,6 +1979,7 @@ brcmf_pcie_remove(struct pci_dev *pdev)
+ brcmf_pcie_intr_disable(devinfo);
+
+ brcmf_detach(&pdev->dev);
++ brcmf_free(&pdev->dev);
+
+ kfree(bus->bus_priv.pcie);
+ kfree(bus->msgbuf->flowrings);
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+@@ -4251,17 +4251,26 @@ static void brcmf_sdio_firmware_callback
+ sdiod->bus_if->chip = bus->ci->chip;
+ sdiod->bus_if->chiprev = bus->ci->chiprev;
+
++ err = brcmf_alloc(sdiod->dev, sdiod->settings);
++ if (err) {
++ brcmf_err("brcmf_alloc failed\n");
++ goto claim;
++ }
++
+ /* Attach to the common layer, reserve hdr space */
+- err = brcmf_attach(sdiod->dev, sdiod->settings);
++ err = brcmf_attach(sdiod->dev);
+ if (err != 0) {
+ brcmf_err("brcmf_attach failed\n");
+- sdio_claim_host(sdiod->func1);
+- goto checkdied;
++ goto free;
+ }
+
+ /* ready */
+ return;
+
++free:
++ brcmf_free(sdiod->dev);
++claim:
++ sdio_claim_host(sdiod->func1);
+ checkdied:
+ brcmf_sdio_checkdied(bus);
+ release:
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
+@@ -1178,8 +1178,12 @@ static void brcmf_usb_probe_phase2(struc
+ if (ret)
+ goto error;
+
++ ret = brcmf_alloc(devinfo->dev, devinfo->settings);
++ if (ret)
++ goto error;
++
+ /* Attach to the common driver interface */
+- ret = brcmf_attach(devinfo->dev, devinfo->settings);
++ ret = brcmf_attach(devinfo->dev);
+ if (ret)
+ goto error;
+
+@@ -1251,7 +1255,10 @@ static int brcmf_usb_probe_cb(struct brc
+ }
+
+ if (!brcmf_usb_dlneeded(devinfo)) {
+- ret = brcmf_attach(devinfo->dev, devinfo->settings);
++ ret = brcmf_alloc(devinfo->dev, devinfo->settings);
++ if (ret)
++ goto fail;
++ ret = brcmf_attach(devinfo->dev);
+ if (ret)
+ goto fail;
+ /* we are done */
+@@ -1279,6 +1286,7 @@ static int brcmf_usb_probe_cb(struct brc
+
+ fail:
+ /* Release resources in reverse order */
++ brcmf_free(devinfo->dev);
+ kfree(bus);
+ brcmf_usb_detach(devinfo);
+ return ret;
+@@ -1292,6 +1300,7 @@ brcmf_usb_disconnect_cb(struct brcmf_usb
+ brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
+
+ brcmf_detach(devinfo->dev);
++ brcmf_free(devinfo->dev);
+ kfree(devinfo->bus_pub.bus);
+ brcmf_usb_detach(devinfo);
+ }
+@@ -1435,10 +1444,12 @@ static int brcmf_usb_suspend(struct usb_
+
+ brcmf_dbg(USB, "Enter\n");
+ devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP;
+- if (devinfo->wowl_enabled)
++ if (devinfo->wowl_enabled) {
+ brcmf_cancel_all_urbs(devinfo);
+- else
++ } else {
+ brcmf_detach(&usb->dev);
++ brcmf_free(&usb->dev);
++ }
+ return 0;
+ }
+
+@@ -1451,8 +1462,19 @@ static int brcmf_usb_resume(struct usb_i
+ struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
+
+ brcmf_dbg(USB, "Enter\n");
+- if (!devinfo->wowl_enabled)
+- return brcmf_attach(devinfo->dev, devinfo->settings);
++ if (!devinfo->wowl_enabled) {
++ int err;
++
++ err = brcmf_alloc(&usb->dev, devinfo->settings);
++ if (err)
++ return err;
++
++ err = brcmf_attach(devinfo->dev);
++ if (err) {
++ brcmf_free(devinfo->dev);
++ return err;
++ }
++ }
+
+ devinfo->bus_pub.state = BRCMFMAC_USB_STATE_UP;
+ brcmf_usb_rx_fill_all(devinfo);
--- /dev/null
+From a1f5aac1765afbeace9581afa27da34085f68e1d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 3 Sep 2019 06:29:28 +0200
+Subject: [PATCH 3/3] brcmfmac: don't realloc wiphy during PCIe reset
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Providing a new wiphy on every PCIe reset was confusing and was causing
+configuration problems for some users (supplicant and authenticators).
+Sticking to the existing wiphy should make error recovery much simpler
+and more reliable.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
+Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
+---
+ drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+@@ -1430,7 +1430,6 @@ static int brcmf_pcie_reset(struct devic
+ brcmf_pcie_bus_console_read(devinfo, true);
+
+ brcmf_detach(dev);
+- brcmf_free(dev);
+
+ brcmf_pcie_release_irq(devinfo);
+ brcmf_pcie_release_scratchbuffers(devinfo);
+@@ -1826,9 +1825,6 @@ static void brcmf_pcie_setup(struct devi
+ brcmf_pcie_intr_enable(devinfo);
+ brcmf_pcie_hostready(devinfo);
+
+- ret = brcmf_alloc(&devinfo->pdev->dev, devinfo->settings);
+- if (ret)
+- goto fail;
+ ret = brcmf_attach(&devinfo->pdev->dev);
+ if (ret)
+ goto fail;
+@@ -1931,6 +1927,10 @@ brcmf_pcie_probe(struct pci_dev *pdev, c
+ bus->wowl_supported = pci_pme_capable(pdev, PCI_D3hot);
+ dev_set_drvdata(&pdev->dev, bus);
+
++ ret = brcmf_alloc(&devinfo->pdev->dev, devinfo->settings);
++ if (ret)
++ goto fail_bus;
++
+ fwreq = brcmf_pcie_prepare_fw_request(devinfo);
+ if (!fwreq) {
+ ret = -ENOMEM;
projects / openwrt / staging / ynezz.git / commitdiff