pmaports/device/testing/linux-samsung-klimtlte/02-usb_gadget-set-random-rndis-host-MAC-address-to-prev.patch
Henrik Grimler 89d074c762
samsung-klimtlte: enable FIMC IS with downstream kernel (MR 4721)
As for several other exynos devices we need to disable the
video4linux's udev rule OR disable FIMC IS and patch kernel to fix
build error without FIMC IS.

Add dependency on postmarketos-base-downstream-disable-udev-v4l to
override the v4l rule with symlink to /dev/null.  We can then drop
FIMC IS patch and keep kernel config more similar to original one.
2024-01-30 12:26:21 -08:00

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Diff

diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 934b8bacfeeb..f41d23c5f5cb 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -1224,8 +1224,17 @@ int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN],
dev_warn(&g->dev,
"using random %s ethernet address\n", "self");
#ifdef CONFIG_USB_ANDROID_SAMSUNG_COMPOSITE
+ if ((ethaddr[0] == 0x00) && (ethaddr[1] == 0x00) &&
+ (ethaddr[2] == 0x00) && (ethaddr[3] == 0x00) &&
+ (ethaddr[4] == 0x00) && (ethaddr[5] == 0x00)) {
+ printk(KERN_DEBUG "%s: no unique host MAC was set, generate random\n", __func__);
+ /* we can use random_ether_addr() from include/linux/etherdevice.h */
+ random_ether_addr(ethaddr);
+ } else {
+ printk(KERN_DEBUG "%s: set unique host mac\n", __func__);
+ }
memcpy(dev->host_mac, ethaddr, ETH_ALEN);
- printk(KERN_DEBUG "usb: set unique host mac\n");
+
#else
if (get_ether_addr(host_addr, dev->host_mac))
dev_warn(&g->dev,