mac80211: brcmfmac: backport remaining changes from 4.15

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
master
Rafał Miłecki 7 years ago
parent c29a2a4283
commit e52e8480ad
  1. 434
      package/kernel/mac80211/patches/304-v4.15-brcmfmac-add-CLM-download-support.patch
  2. 37
      package/kernel/mac80211/patches/305-v4.15-brcmfmac-change-driver-unbind-order-of-the-sdio-func.patch
  3. 33
      package/kernel/mac80211/patches/306-v4.15-brcmfmac-Avoid-build-error-with-make-W-1.patch
  4. 40
      package/kernel/mac80211/patches/307-v4.15-brcmfmac-fix-CLM-load-error-for-legacy-chips-when-us.patch
  5. 2
      package/kernel/mac80211/patches/860-brcmfmac-register-wiphy-s-during-module_init.patch
  6. 2
      package/kernel/mac80211/patches/864-brcmfmac-do-not-use-internal-roaming-engine-by-default.patch

@ -0,0 +1,434 @@
From fdd0bd88ceaecf729db103ac8836af5805dd2dc1 Mon Sep 17 00:00:00 2001
From: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Date: Fri, 10 Nov 2017 17:27:15 +0800
Subject: [PATCH] brcmfmac: add CLM download support
The firmware for brcmfmac devices includes information regarding
regulatory constraints. For certain devices this information is kept
separately in a binary form that needs to be downloaded to the device.
This patch adds support to download this so-called CLM blob file. It
uses the same naming scheme as the other firmware files with extension
of .clm_blob.
The CLM blob file is optional. If the file does not exist, the download
process will be bypassed. It will not affect the driver loading.
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
.../net/wireless/broadcom/brcm80211/brcmfmac/bus.h | 10 ++
.../wireless/broadcom/brcm80211/brcmfmac/common.c | 157 +++++++++++++++++++++
.../wireless/broadcom/brcm80211/brcmfmac/core.c | 2 +
.../wireless/broadcom/brcm80211/brcmfmac/core.h | 2 +
.../broadcom/brcm80211/brcmfmac/fwil_types.h | 31 ++++
.../wireless/broadcom/brcm80211/brcmfmac/pcie.c | 19 +++
.../wireless/broadcom/brcm80211/brcmfmac/sdio.c | 19 +++
.../net/wireless/broadcom/brcm80211/brcmfmac/usb.c | 18 +++
8 files changed, 258 insertions(+)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h
@@ -71,6 +71,7 @@ struct brcmf_bus_dcmd {
* @wowl_config: specify if dongle is configured for wowl when going to suspend
* @get_ramsize: obtain size of device memory.
* @get_memdump: obtain device memory dump in provided buffer.
+ * @get_fwname: obtain firmware name.
*
* This structure provides an abstract interface towards the
* bus specific driver. For control messages to common driver
@@ -87,6 +88,8 @@ struct brcmf_bus_ops {
void (*wowl_config)(struct device *dev, bool enabled);
size_t (*get_ramsize)(struct device *dev);
int (*get_memdump)(struct device *dev, void *data, size_t len);
+ int (*get_fwname)(struct device *dev, uint chip, uint chiprev,
+ unsigned char *fw_name);
};
@@ -224,6 +227,13 @@ int brcmf_bus_get_memdump(struct brcmf_b
return bus->ops->get_memdump(bus->dev, data, len);
}
+static inline
+int brcmf_bus_get_fwname(struct brcmf_bus *bus, uint chip, uint chiprev,
+ unsigned char *fw_name)
+{
+ return bus->ops->get_fwname(bus->dev, chip, chiprev, fw_name);
+}
+
/*
* interface functions from common layer
*/
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -18,6 +18,7 @@
#include <linux/string.h>
#include <linux/netdevice.h>
#include <linux/module.h>
+#include <linux/firmware.h>
#include <brcmu_wifi.h>
#include <brcmu_utils.h>
#include "core.h"
@@ -28,6 +29,7 @@
#include "tracepoint.h"
#include "common.h"
#include "of.h"
+#include "firmware.h"
MODULE_AUTHOR("Broadcom Corporation");
MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver.");
@@ -104,12 +106,140 @@ void brcmf_c_set_joinpref_default(struct
brcmf_err("Set join_pref error (%d)\n", err);
}
+static int brcmf_c_download(struct brcmf_if *ifp, u16 flag,
+ struct brcmf_dload_data_le *dload_buf,
+ u32 len)
+{
+ s32 err;
+
+ flag |= (DLOAD_HANDLER_VER << DLOAD_FLAG_VER_SHIFT);
+ dload_buf->flag = cpu_to_le16(flag);
+ dload_buf->dload_type = cpu_to_le16(DL_TYPE_CLM);
+ dload_buf->len = cpu_to_le32(len);
+ dload_buf->crc = cpu_to_le32(0);
+ len = sizeof(*dload_buf) + len - 1;
+
+ err = brcmf_fil_iovar_data_set(ifp, "clmload", dload_buf, len);
+
+ return err;
+}
+
+static int brcmf_c_get_clm_name(struct brcmf_if *ifp, u8 *clm_name)
+{
+ struct brcmf_bus *bus = ifp->drvr->bus_if;
+ struct brcmf_rev_info *ri = &ifp->drvr->revinfo;
+ u8 fw_name[BRCMF_FW_NAME_LEN];
+ u8 *ptr;
+ size_t len;
+ s32 err;
+
+ memset(fw_name, 0, BRCMF_FW_NAME_LEN);
+ err = brcmf_bus_get_fwname(bus, ri->chipnum, ri->chiprev, fw_name);
+ if (err) {
+ brcmf_err("get firmware name failed (%d)\n", err);
+ goto done;
+ }
+
+ /* generate CLM blob file name */
+ ptr = strrchr(fw_name, '.');
+ if (!ptr) {
+ err = -ENOENT;
+ goto done;
+ }
+
+ len = ptr - fw_name + 1;
+ if (len + strlen(".clm_blob") > BRCMF_FW_NAME_LEN) {
+ err = -E2BIG;
+ } else {
+ strlcpy(clm_name, fw_name, len);
+ strlcat(clm_name, ".clm_blob", BRCMF_FW_NAME_LEN);
+ }
+done:
+ return err;
+}
+
+static int brcmf_c_process_clm_blob(struct brcmf_if *ifp)
+{
+ struct device *dev = ifp->drvr->bus_if->dev;
+ struct brcmf_dload_data_le *chunk_buf;
+ const struct firmware *clm = NULL;
+ u8 clm_name[BRCMF_FW_NAME_LEN];
+ u32 chunk_len;
+ u32 datalen;
+ u32 cumulative_len;
+ u16 dl_flag = DL_BEGIN;
+ u32 status;
+ s32 err;
+
+ brcmf_dbg(TRACE, "Enter\n");
+
+ memset(clm_name, 0, BRCMF_FW_NAME_LEN);
+ err = brcmf_c_get_clm_name(ifp, clm_name);
+ if (err) {
+ brcmf_err("get CLM blob file name failed (%d)\n", err);
+ return err;
+ }
+
+ err = request_firmware(&clm, clm_name, dev);
+ if (err) {
+ if (err == -ENOENT) {
+ brcmf_dbg(INFO, "continue with CLM data currently present in firmware\n");
+ return 0;
+ }
+ brcmf_err("request CLM blob file failed (%d)\n", err);
+ return err;
+ }
+
+ chunk_buf = kzalloc(sizeof(*chunk_buf) + MAX_CHUNK_LEN - 1, GFP_KERNEL);
+ if (!chunk_buf) {
+ err = -ENOMEM;
+ goto done;
+ }
+
+ datalen = clm->size;
+ cumulative_len = 0;
+ do {
+ if (datalen > MAX_CHUNK_LEN) {
+ chunk_len = MAX_CHUNK_LEN;
+ } else {
+ chunk_len = datalen;
+ dl_flag |= DL_END;
+ }
+ memcpy(chunk_buf->data, clm->data + cumulative_len, chunk_len);
+
+ err = brcmf_c_download(ifp, dl_flag, chunk_buf, chunk_len);
+
+ dl_flag &= ~DL_BEGIN;
+
+ cumulative_len += chunk_len;
+ datalen -= chunk_len;
+ } while ((datalen > 0) && (err == 0));
+
+ if (err) {
+ brcmf_err("clmload (%zu byte file) failed (%d); ",
+ clm->size, err);
+ /* Retrieve clmload_status and print */
+ err = brcmf_fil_iovar_int_get(ifp, "clmload_status", &status);
+ if (err)
+ brcmf_err("get clmload_status failed (%d)\n", err);
+ else
+ brcmf_dbg(INFO, "clmload_status=%d\n", status);
+ err = -EIO;
+ }
+
+ kfree(chunk_buf);
+done:
+ release_firmware(clm);
+ return err;
+}
+
int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
{
s8 eventmask[BRCMF_EVENTING_MASK_LEN];
u8 buf[BRCMF_DCMD_SMLEN];
struct brcmf_rev_info_le revinfo;
struct brcmf_rev_info *ri;
+ char *clmver;
char *ptr;
s32 err;
@@ -148,6 +278,13 @@ int brcmf_c_preinit_dcmds(struct brcmf_i
}
ri->result = err;
+ /* Do any CLM downloading */
+ err = brcmf_c_process_clm_blob(ifp);
+ if (err < 0) {
+ brcmf_err("download CLM blob file failed, %d\n", err);
+ goto done;
+ }
+
/* query for 'ver' to get version info from firmware */
memset(buf, 0, sizeof(buf));
strcpy(buf, "ver");
@@ -167,6 +304,26 @@ int brcmf_c_preinit_dcmds(struct brcmf_i
ptr = strrchr(buf, ' ') + 1;
strlcpy(ifp->drvr->fwver, ptr, sizeof(ifp->drvr->fwver));
+ /* Query for 'clmver' to get CLM version info from firmware */
+ memset(buf, 0, sizeof(buf));
+ err = brcmf_fil_iovar_data_get(ifp, "clmver", buf, sizeof(buf));
+ if (err) {
+ brcmf_dbg(TRACE, "retrieving clmver failed, %d\n", err);
+ } else {
+ clmver = (char *)buf;
+ /* store CLM version for adding it to revinfo debugfs file */
+ memcpy(ifp->drvr->clmver, clmver, sizeof(ifp->drvr->clmver));
+
+ /* Replace all newline/linefeed characters with space
+ * character
+ */
+ ptr = clmver;
+ while ((ptr = strnchr(ptr, '\n', sizeof(buf))) != NULL)
+ *ptr = ' ';
+
+ brcmf_dbg(INFO, "CLM version = %s\n", clmver);
+ }
+
/* set mpc */
err = brcmf_fil_iovar_int_set(ifp, "mpc", 1);
if (err) {
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -1009,6 +1009,8 @@ static int brcmf_revinfo_read(struct seq
seq_printf(s, "anarev: %u\n", ri->anarev);
seq_printf(s, "nvramrev: %08x\n", ri->nvramrev);
+ seq_printf(s, "clmver: %s\n", bus_if->drvr->clmver);
+
return 0;
}
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
@@ -141,6 +141,8 @@ struct brcmf_pub {
struct notifier_block inetaddr_notifier;
struct notifier_block inet6addr_notifier;
struct brcmf_mp_device *settings;
+
+ u8 clmver[BRCMF_DCMD_SMLEN];
};
/* forward declarations */
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
@@ -155,6 +155,21 @@
#define BRCMF_MFP_CAPABLE 1
#define BRCMF_MFP_REQUIRED 2
+/* MAX_CHUNK_LEN is the maximum length for data passing to firmware in each
+ * ioctl. It is relatively small because firmware has small maximum size input
+ * playload restriction for ioctls.
+ */
+#define MAX_CHUNK_LEN 1400
+
+#define DLOAD_HANDLER_VER 1 /* Downloader version */
+#define DLOAD_FLAG_VER_MASK 0xf000 /* Downloader version mask */
+#define DLOAD_FLAG_VER_SHIFT 12 /* Downloader version shift */
+
+#define DL_BEGIN 0x0002
+#define DL_END 0x0004
+
+#define DL_TYPE_CLM 2
+
/* join preference types for join_pref iovar */
enum brcmf_join_pref_types {
BRCMF_JOIN_PREF_RSSI = 1,
@@ -827,6 +842,22 @@ struct brcmf_pno_macaddr_le {
};
/**
+ * struct brcmf_dload_data_le - data passing to firmware for downloading
+ * @flag: flags related to download data.
+ * @dload_type: type of download data.
+ * @len: length in bytes of download data.
+ * @crc: crc of download data.
+ * @data: download data.
+ */
+struct brcmf_dload_data_le {
+ __le16 flag;
+ __le16 dload_type;
+ __le32 len;
+ __le32 crc;
+ u8 data[1];
+};
+
+/**
* struct brcmf_pno_bssid_le - bssid configuration for PNO scan.
*
* @bssid: BSS network identifier.
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
@@ -1350,6 +1350,24 @@ static int brcmf_pcie_get_memdump(struct
return 0;
}
+static int brcmf_pcie_get_fwname(struct device *dev, u32 chip, u32 chiprev,
+ u8 *fw_name)
+{
+ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+ struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie;
+ struct brcmf_pciedev_info *devinfo = buspub->devinfo;
+ int ret = 0;
+
+ if (devinfo->fw_name[0] != '\0')
+ strlcpy(fw_name, devinfo->fw_name, BRCMF_FW_NAME_LEN);
+ else
+ ret = brcmf_fw_map_chip_to_name(chip, chiprev,
+ brcmf_pcie_fwnames,
+ ARRAY_SIZE(brcmf_pcie_fwnames),
+ fw_name, NULL);
+
+ return ret;
+}
static const struct brcmf_bus_ops brcmf_pcie_bus_ops = {
.txdata = brcmf_pcie_tx,
@@ -1359,6 +1377,7 @@ static const struct brcmf_bus_ops brcmf_
.wowl_config = brcmf_pcie_wowl_config,
.get_ramsize = brcmf_pcie_get_ramsize,
.get_memdump = brcmf_pcie_get_memdump,
+ .get_fwname = brcmf_pcie_get_fwname,
};
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -3985,6 +3985,24 @@ brcmf_sdio_watchdog(unsigned long data)
}
}
+static int brcmf_sdio_get_fwname(struct device *dev, u32 chip, u32 chiprev,
+ u8 *fw_name)
+{
+ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+ struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
+ int ret = 0;
+
+ if (sdiodev->fw_name[0] != '\0')
+ strlcpy(fw_name, sdiodev->fw_name, BRCMF_FW_NAME_LEN);
+ else
+ ret = brcmf_fw_map_chip_to_name(chip, chiprev,
+ brcmf_sdio_fwnames,
+ ARRAY_SIZE(brcmf_sdio_fwnames),
+ fw_name, NULL);
+
+ return ret;
+}
+
static const struct brcmf_bus_ops brcmf_sdio_bus_ops = {
.stop = brcmf_sdio_bus_stop,
.preinit = brcmf_sdio_bus_preinit,
@@ -3995,6 +4013,7 @@ static const struct brcmf_bus_ops brcmf_
.wowl_config = brcmf_sdio_wowl_config,
.get_ramsize = brcmf_sdio_bus_get_ramsize,
.get_memdump = brcmf_sdio_bus_get_memdump,
+ .get_fwname = brcmf_sdio_get_fwname,
};
static void brcmf_sdio_firmware_callback(struct device *dev, int err,
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
@@ -1128,12 +1128,30 @@ static void brcmf_usb_wowl_config(struct
device_set_wakeup_enable(devinfo->dev, false);
}
+static int brcmf_usb_get_fwname(struct device *dev, u32 chip, u32 chiprev,
+ u8 *fw_name)
+{
+ struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
+ int ret = 0;
+
+ if (devinfo->fw_name[0] != '\0')
+ strlcpy(fw_name, devinfo->fw_name, BRCMF_FW_NAME_LEN);
+ else
+ ret = brcmf_fw_map_chip_to_name(chip, chiprev,
+ brcmf_usb_fwnames,
+ ARRAY_SIZE(brcmf_usb_fwnames),
+ fw_name, NULL);
+
+ return ret;
+}
+
static const struct brcmf_bus_ops brcmf_usb_bus_ops = {
.txdata = brcmf_usb_tx,
.stop = brcmf_usb_down,
.txctl = brcmf_usb_tx_ctlpkt,
.rxctl = brcmf_usb_rx_ctlpkt,
.wowl_config = brcmf_usb_wowl_config,
+ .get_fwname = brcmf_usb_get_fwname,
};
static int brcmf_usb_bus_setup(struct brcmf_usbdev_info *devinfo)

@ -0,0 +1,37 @@
From 5c3de777bdaf48bd0cfb43097c0d0fb85056cab7 Mon Sep 17 00:00:00 2001
From: Arend Van Spriel <arend.vanspriel@broadcom.com>
Date: Sat, 25 Nov 2017 21:39:25 +0100
Subject: [PATCH] brcmfmac: change driver unbind order of the sdio function
devices
In the function brcmf_sdio_firmware_callback() the driver is
unbound from the sdio function devices in the error path.
However, the order in which it is done resulted in a use-after-free
issue (see brcmf_ops_sdio_remove() in bcmsdh.c). Hence change
the order and first unbind sdio function #2 device and then
unbind sdio function #1 device.
Cc: stable@vger.kernel.org # v4.12.x
Fixes: 7a51461fc2da ("brcmfmac: unbind all devices upon failure in firmware callback")
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -4121,8 +4121,8 @@ release:
sdio_release_host(sdiodev->func[1]);
fail:
brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), err);
- device_release_driver(dev);
device_release_driver(&sdiodev->func[2]->dev);
+ device_release_driver(dev);
}
struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)

@ -0,0 +1,33 @@
From 51ef7925e10688c57186d438e784532e063492e4 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Thu, 23 Nov 2017 17:57:04 +0200
Subject: [PATCH] brcmfmac: Avoid build error with make W=1
When I run make W=1 on gcc (Debian 7.2.0-16) 7.2.0 I got an error for
the first run, all next ones are okay.
CC [M] drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.o
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:2078: error: Cannot parse struct or union!
scripts/Makefile.build:310: recipe for target 'drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.o' failed
Seems like something happened with W=1 and wrong kernel doc format.
As a quick fix remove dubious /** in the code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -2070,7 +2070,7 @@ static int brcmf_sdio_txpkt_hdalign(stru
return head_pad;
}
-/**
+/*
* struct brcmf_skbuff_cb reserves first two bytes in sk_buff::cb for
* bus layer usage.
*/

@ -0,0 +1,40 @@
From cc124d5cc8d81985c3511892d7a6d546552ff754 Mon Sep 17 00:00:00 2001
From: Wright Feng <wright.feng@cypress.com>
Date: Tue, 16 Jan 2018 17:26:50 +0800
Subject: [PATCH] brcmfmac: fix CLM load error for legacy chips when user
helper is enabled
For legacy chips without CLM blob files, kernel with user helper function
returns -EAGAIN when we request_firmware(), and then driver got failed
when bringing up legacy chips. We expect the CLM blob file for legacy chip
is not existence in firmware path, but the -ENOENT error is transferred to
-EAGAIN in firmware_class.c with user helper.
Because of that, we continue with CLM data currently present in firmware
if getting error from doing request_firmware().
Cc: stable@vger.kernel.org # v4.15.y
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -182,12 +182,9 @@ static int brcmf_c_process_clm_blob(stru
err = request_firmware(&clm, clm_name, dev);
if (err) {
- if (err == -ENOENT) {
- brcmf_dbg(INFO, "continue with CLM data currently present in firmware\n");
- return 0;
- }
- brcmf_err("request CLM blob file failed (%d)\n", err);
- return err;
+ brcmf_info("no clm_blob available(err=%d), device may have limited channels available\n",
+ err);
+ return 0;
}
chunk_buf = kzalloc(sizeof(*chunk_buf) + MAX_CHUNK_LEN - 1, GFP_KERNEL);

@ -13,7 +13,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -1236,6 +1236,7 @@ int __init brcmf_core_init(void)
@@ -1238,6 +1238,7 @@ int __init brcmf_core_init(void)
{
if (!schedule_work(&brcmf_driver_work))
return -EBUSY;

@ -9,7 +9,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.org>
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -69,7 +69,11 @@ static int brcmf_fcmode;
@@ -71,7 +71,11 @@ static int brcmf_fcmode;
module_param_named(fcmode, brcmf_fcmode, int, 0);
MODULE_PARM_DESC(fcmode, "Mode of firmware signalled flow control");

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