1*712676eaSAdhemerval Zanella // SPDX-License-Identifier: GPL-2.0
2*712676eaSAdhemerval Zanella
3*712676eaSAdhemerval Zanella #include <uapi/asm-generic/errno.h>
4*712676eaSAdhemerval Zanella
5*712676eaSAdhemerval Zanella typeof(__cvdso_getrandom) __kernel_getrandom;
6*712676eaSAdhemerval Zanella
__kernel_getrandom(void * buffer,size_t len,unsigned int flags,void * opaque_state,size_t opaque_len)7*712676eaSAdhemerval Zanella ssize_t __kernel_getrandom(void *buffer, size_t len, unsigned int flags, void *opaque_state, size_t opaque_len)
8*712676eaSAdhemerval Zanella {
9*712676eaSAdhemerval Zanella if (alternative_has_cap_likely(ARM64_HAS_FPSIMD))
10*712676eaSAdhemerval Zanella return __cvdso_getrandom(buffer, len, flags, opaque_state, opaque_len);
11*712676eaSAdhemerval Zanella
12*712676eaSAdhemerval Zanella if (unlikely(opaque_len == ~0UL && !buffer && !len && !flags))
13*712676eaSAdhemerval Zanella return -ENOSYS;
14*712676eaSAdhemerval Zanella return getrandom_syscall(buffer, len, flags);
15*712676eaSAdhemerval Zanella }
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