bcm_sta: improve kernel 5.17 patch including addr set function

Using https://gist.github.com/joanbm/37fd0590f30b41e7e89ade6e242ca16e

packages/linux-drivers/bcm_sta/patches/bcm_sta-0600-kernel-5.17-fix.patch

@@ -1,26 +1,80 @@
---- a/x86-64/src/wl/sys/wl_linux.c	2022-02-19 15:22:05.006428601 +0000
+From 31b7849092c43805c7fbaf7518b99874aa1b310c Mon Sep 17 00:00:00 2001
-+++ b/x86-64/src/wl/sys/wl_linux.c	2022-02-19 21:55:03.290519415 +0000
+From: Joan Bruguera <joanbrugueram@gmail.com>
-@@ -3287,7 +3287,11 @@
+Date: Wed, 12 Jan 2022 20:49:20 +0100
- static ssize_t
+Subject: [PATCH] Tentative fix for broadcom-wl 6.30.223.271 driver for Linux 5.17-rc1
- wl_proc_read(struct file *filp, char __user *buffer, size_t length, loff_t *offp)
+
- {
+Set netdev->dev_addr through dev_addr_mod + PDE_DATA fix
-+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 17, 0)
+
- 	wl_info_t * wl = PDE_DATA(file_inode(filp));
+Since Linux 5.17 netdev->dev_addr is const and must be changed through
-+#else
+dev_addr_mod, otherwise a warning is logged in dmesg and bad things may happen.
-+	wl_info_t * wl = file_inode(filp)->i_private;
+
+NB: The #if is not wrong, dev_addr_mod is defined since Linux 5.15-rc1
+
+Plus a trivial fix for PDE_DATA.
+
+Applies on top of all the patches applied to broadcom-wl-dkms 6.30.223.271-28 on Arch Linux.
+
+See also: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=adeef3e32146a8d2a73c399dc6f5d76a449131b1
+          https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=359745d78351c6f5442435f81549f0207ece28aa
+---
+ src/wl/sys/wl_linux.c | 16 +++++++++++++---
+ 1 file changed, 13 insertions(+), 3 deletions(-)
+
+diff --git a/src/wl/sys/wl_linux.c b/src/wl/sys/wl_linux.c
+index e491df7..e4614fb 100644
+--- a/x86-64/src/wl/sys/wl_linux.c
++++ b/x86-64/src/wl/sys/wl_linux.c
+@@ -93,6 +93,10 @@ struct iw_statistics *wl_get_wireless_stats(struct net_device *dev);
+ 
+ #include <wlc_wowl.h>
+ 
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 17, 0))
++#define PDE_DATA pde_data
 +#endif
++
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 15, 0)
+ static void wl_timer(struct timer_list *tl);
+ #else
+@@ -490,6 +494,12 @@ wl_if_setup(struct net_device *dev)
  #endif
- 	int bcmerror, len;
+ }
- 	int to_user = 0;
+ 
-@@ -3344,7 +3348,11 @@
++#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 15, 0)
- static ssize_t
++static inline void eth_hw_addr_set(struct net_device *dev, const void *addr) {
- wl_proc_write(struct file *filp, const char __user *buff, size_t length, loff_t *offp)
++	memcpy(dev->dev_addr, addr, ETHER_ADDR_LEN);
- {
++}
-+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 17, 0)
- 	wl_info_t * wl = PDE_DATA(file_inode(filp));
-+#else
-+	wl_info_t * wl = file_inode(filp)->i_private;
 +#endif
- #endif
++
- 	int from_user = 0;
+ static wl_info_t *
- 	int bcmerror;
+ wl_attach(uint16 vendor, uint16 device, ulong regs,
+ 	uint bustype, void *btparam, uint irq, uchar* bar1_addr, uint32 bar1_size)
+@@ -634,7 +644,7 @@ wl_attach(uint16 vendor, uint16 device, ulong regs,
+ 			WL_ERROR(("wl%d: Error setting MAC ADDRESS\n", unit));
+ 	}
+ #endif 
+-	bcopy(&wl->pub->cur_etheraddr, dev->dev_addr, ETHER_ADDR_LEN);
++	eth_hw_addr_set(dev, wl->pub->cur_etheraddr.octet);
+ 
+ 	online_cpus = 1;
+ 
+@@ -1835,7 +1845,7 @@ wl_set_mac_address(struct net_device *dev, void *addr)
+ 
+ 	WL_LOCK(wl);
+ 
+-	bcopy(sa->sa_data, dev->dev_addr, ETHER_ADDR_LEN);
++	eth_hw_addr_set(dev, sa->sa_data);
+ 	err = wlc_iovar_op(wl->wlc, "cur_etheraddr", NULL, 0, sa->sa_data, ETHER_ADDR_LEN,
+ 		IOV_SET, (WL_DEV_IF(dev))->wlcif);
+ 	WL_UNLOCK(wl);
+@@ -3010,7 +3020,7 @@ _wl_add_monitor_if(wl_task_t *task)
+ 	else
+ 		dev->type = ARPHRD_IEEE80211_RADIOTAP;
+ 
+-	bcopy(wl->dev->dev_addr, dev->dev_addr, ETHER_ADDR_LEN);
++	eth_hw_addr_set(dev, wl->dev->dev_addr);
+ 
+ #if defined(WL_USE_NETDEV_OPS)
+ 	dev->netdev_ops = &wl_netdev_monitor_ops;
+-- 
+2.35.1
+