1 files changed, 68 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0151-brcmfmac-Disable-ARP-offloading-when-promiscuous.patch b/target/linux/brcm2708/patches-4.19/950-0151-brcmfmac-Disable-ARP-offloading-when-promiscuous.patch
new file mode 100644
index 0000000000..27f889482b
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0151-brcmfmac-Disable-ARP-offloading-when-promiscuous.patch
@@ -0,0 +1,68 @@
+From 80cebfc3a14a2645e99baa0a72587e25961e178f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 24 Aug 2017 16:16:16 +0100
+Subject: [PATCH 151/703] brcmfmac: Disable ARP offloading when promiscuous
+
+This is a test patch for brcmfmac from Franky Lin at Broadcom to disable
+ARP offloading when in promiscuous mode, re-enabling the ability to
+sniff ARP packets over WiFi.
+
+See: https://github.com/raspberrypi/linux/issues/2171
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ .../net/wireless/broadcom/brcm80211/brcmfmac/core.c   | 11 ++++++-----
+ .../net/wireless/broadcom/brcm80211/brcmfmac/core.h   |  1 +
+ 2 files changed, 7 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+@@ -88,25 +88,25 @@ void brcmf_configure_arp_nd_offload(stru
+ 	if (err) {
+ 		brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n",
+ 			  mode, err);
++		err = 0;
+ 	} else {
+ 		err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable);
+ 		if (err) {
+ 			brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n",
+ 				  enable, err);
+-		} else {
++			err = 0;
++		} else
+ 			brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n",
+ 				  enable, mode);
+-		}
+ 	}
+ 
+ 	err = brcmf_fil_iovar_int_set(ifp, "ndoe", enable);
+-	if (err) {
++	if (err)
+ 		brcmf_dbg(TRACE, "failed to configure (%d) ND offload err = %d\n",
+ 			  enable, err);
+-	} else {
++	else
+ 		brcmf_dbg(TRACE, "successfully configured (%d) ND offload to 0x%x\n",
+ 			  enable, mode);
+-	}
+ }
+ 
+ static void _brcmf_set_multicast_list(struct work_struct *work)
+@@ -172,6 +172,7 @@ static void _brcmf_set_multicast_list(st
+ 	if (err < 0)
+ 		brcmf_err("Setting BRCMF_C_SET_PROMISC failed, %d\n",
+ 			  err);
++
+ 	brcmf_configure_arp_nd_offload(ifp, !cmd_value);
+ }
+ 
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
+@@ -210,6 +210,7 @@ char *brcmf_ifname(struct brcmf_if *ifp)
+ struct brcmf_if *brcmf_get_ifp(struct brcmf_pub *drvr, int ifidx);
+ void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable);
+ int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
++void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable);
+ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bsscfgidx, s32 ifidx,
+ 			      bool is_p2pdev, const char *name, u8 *mac_addr);
+ void brcmf_remove_interface(struct brcmf_if *ifp, bool rtnl_locked);