From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Fri, 25 Mar 2016 03:53:42 -0300 Subject: Linux-libre 4.5-gnu --- arch/mips/bcm63xx/nvram.c | 35 +++-------------------------------- 1 file changed, 3 insertions(+), 32 deletions(-) (limited to 'arch/mips/bcm63xx/nvram.c') diff --git a/arch/mips/bcm63xx/nvram.c b/arch/mips/bcm63xx/nvram.c index 4b50d40f7..05757aed0 100644 --- a/arch/mips/bcm63xx/nvram.c +++ b/arch/mips/bcm63xx/nvram.c @@ -10,6 +10,7 @@ #define pr_fmt(fmt) "bcm63xx_nvram: " fmt +#include #include #include #include @@ -18,23 +19,6 @@ #include -/* - * nvram structure - */ -struct bcm963xx_nvram { - u32 version; - u8 reserved1[256]; - u8 name[16]; - u32 main_tp_number; - u32 psi_size; - u32 mac_addr_count; - u8 mac_addr_base[ETH_ALEN]; - u8 reserved2[2]; - u32 checksum_old; - u8 reserved3[720]; - u32 checksum_high; -}; - #define BCM63XX_DEFAULT_PSI_SIZE 64 static struct bcm963xx_nvram nvram; @@ -42,27 +26,14 @@ static int mac_addr_used; void __init bcm63xx_nvram_init(void *addr) { - unsigned int check_len; u32 crc, expected_crc; u8 hcs_mac_addr[ETH_ALEN] = { 0x00, 0x10, 0x18, 0xff, 0xff, 0xff }; /* extract nvram data */ - memcpy(&nvram, addr, sizeof(nvram)); + memcpy(&nvram, addr, BCM963XX_NVRAM_V5_SIZE); /* check checksum before using data */ - if (nvram.version <= 4) { - check_len = offsetof(struct bcm963xx_nvram, reserved3); - expected_crc = nvram.checksum_old; - nvram.checksum_old = 0; - } else { - check_len = sizeof(nvram); - expected_crc = nvram.checksum_high; - nvram.checksum_high = 0; - } - - crc = crc32_le(~0, (u8 *)&nvram, check_len); - - if (crc != expected_crc) + if (bcm963xx_nvram_checksum(&nvram, &expected_crc, &crc)) pr_warn("nvram checksum failed, contents may be invalid (expected %08x, got %08x)\n", expected_crc, crc); -- cgit v1.2.3-54-g00ecf