From 2e3e0fd94c69239caba1296665a5f1efd3aba4d9 Mon Sep 17 00:00:00 2001 From: Michal Cieslakiewicz Date: Mon, 27 Aug 2018 20:24:04 +0200 Subject: [PATCH] ar71xx: WNR612v2: fix kernel panic due to wrong Wifi LED init Netgear WNR612v2 flashed with recent OpenWrt builds suffers from kernel panic at boot during wireless chip initialization, making device unusable: ath: phy0: Ignoring endianness difference in EEPROM magic bytes. ath: phy0: Enable LNA combining CPU 0 Unable to handle kernel paging request at virtual address 1000fee1, epc == 801d08f0, ra == 801d0d90 Oops[#1]: CPU: 0 PID: 469 Comm: kmodloader Not tainted 4.9.120 #0 [ ... register dump etc ... ] Kernel panic - not syncing: Fatal exception Rebooting in 1 seconds.. This simple patch fixes above error. It keeps LED table in memory after kernel init phase for ath9k driver to operate correctly (__initdata removed). Also, another bug is fixed - correct array size is provided to function that adds platform LEDs (this device has only 1 connected to Wifi chip) preventing code from going outside array bounds. Fixes: 1f5ea4eae46e ("ar71xx: add correct named default wireless led by using platform leds") Signed-off-by: Michal Cieslakiewicz [trimmed commit message] Signed-off-by: Mathias Kresin --- target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2000-v3.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2000-v3.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2000-v3.c index 6c18dc6d90..76c9cb99c9 100644 --- a/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2000-v3.c +++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2000-v3.c @@ -197,7 +197,7 @@ static struct gpio_led wnr612v2_leds_gpio[] __initdata = { } }; -static struct gpio_led wnr612v2_wmac_leds_gpio[] __initdata = { +static struct gpio_led wnr612v2_wmac_leds_gpio[] = { { .name = "netgear:green:wlan", .gpio = WNR612V2_GPIO_WMAC_LED_WLAN_GREEN, @@ -561,7 +561,7 @@ static void __init wnr612v2_setup(void) wnr612v2_leds_gpio); ap9x_pci_setup_wmac_leds(0, wnr612v2_wmac_leds_gpio, - ARRAY_SIZE(wnr612v2_leds_gpio)); + ARRAY_SIZE(wnr612v2_wmac_leds_gpio)); ap9x_pci_setup_wmac_btns(0, wnr612v2_wmac_keys_gpio, ARRAY_SIZE(wnr612v2_wmac_keys_gpio), -- 2.30.2