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MIPS: BCM63XX: Make nvram checksum failure non fatal

Selaa lähdekoodia 
Some vendors modify the nvram layout moving the checksum to a different
place or dropping entirely, so reduce the checksum failure to a warning.

Reported-by: Álvaro Fernández Rojas <noltari@gmail.com>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Jonas Gorski
2013-03-19 13:08:27 +00:00
committed by Ralf Baechle
vanhempi 63c2b6812f
commit 97367519d7
3 muutettua tiedostoa jossa 5 lisäystä ja 11 poistoa
Download Patch File Download Diff File Expand all files Collapse all files

5
arch/mips/bcm63xx/boards/board_bcm963xx.c
Näytä tiedosto

@@ -745,10 +745,7 @@ void __init board_prom_init(void)
strcpy(cfe_version, "unknown");
printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
if (bcm63xx_nvram_init(boot_addr + BCM963XX_NVRAM_OFFSET)) {
printk(KERN_ERR PFX "invalid nvram checksum\n");
return;
}
bcm63xx_nvram_init(boot_addr + BCM963XX_NVRAM_OFFSET);
board_name = bcm63xx_nvram_get_name();
/* find board by name */

7
arch/mips/bcm63xx/nvram.c
Näytä tiedosto

@@ -38,7 +38,7 @@ struct bcm963xx_nvram {
static struct bcm963xx_nvram nvram;
static int mac_addr_used;
int __init bcm63xx_nvram_init(void *addr)
void __init bcm63xx_nvram_init(void *addr)
{
unsigned int check_len;
u32 crc, expected_crc;
@@ -60,9 +60,8 @@ int __init bcm63xx_nvram_init(void *addr)
crc = crc32_le(~0, (u8 *)&nvram, check_len);
if (crc != expected_crc)
return -EINVAL;
return 0;
pr_warn("nvram checksum failed, contents may be invalid (expected %08x, got %08x)\n",
expected_crc, crc);
}
u8 *bcm63xx_nvram_get_name(void)