init 5.10_rt with nkio nkmcu

hc

2023-12-06 d38611ca164021d018c1b23eee65bbebc09c63e0

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// SPDX-License-Identifier: GPL-2.0-only
 
#include <linux/uaccess.h>
#include <linux/kernel.h>
 
bool copy_from_kernel_nofault_allowed(const void *unsafe_src, size_t size)
{
    return is_kernel_addr((unsigned long)unsafe_src);
}