On 2019/9/27 上午8:58, Kever Yang wrote:
On 2019/9/26 上午2:40, Heiko Stuebner wrote:
Originally the cpuid var the value gets read into was defined as
u8 cpuid[RK3399_CPUID_LEN];
hence the sizeof(cpuid) would return the correct the correct number
of array elements.
With the move to a separate function cpuid becomes a pointer and
sizeof(cpuid) hence returns the pointer size - 8 in the arm64 case.
We do have the actual id length available as function param so use
it for actual amount of bytes to read.
Fixes: 04825384999f ("rockchip: rk3399: derive ethaddr from cpuid")
Signed-off-by: Heiko Stuebner <he...@sntech.de>
Reviewed-by: Kever Yang<kever.y...@rock-chips.com>
Applied to u-boot-rockchip/master.
Thanks,
- Kever
---
arch/arm/mach-rockchip/misc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-rockchip/misc.c
b/arch/arm/mach-rockchip/misc.c
index 4423b296b1..bed4317f7e 100644
--- a/arch/arm/mach-rockchip/misc.c
+++ b/arch/arm/mach-rockchip/misc.c
@@ -75,7 +75,7 @@ int rockchip_cpuid_from_efuse(const u32 cpuid_offset,
}
/* read the cpu_id range from the efuses */
- ret = misc_read(dev, cpuid_offset, cpuid, sizeof(cpuid));
+ ret = misc_read(dev, cpuid_offset, cpuid, cpuid_length);
if (ret) {
debug("%s: reading cpuid from the efuses failed\n",
__func__);
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