arm64: fix syscall_fn_t type
[ Upstream commit 8ef8f368ce72b5e17f7c1f1ef15c38dcfd0fef64 ] Syscall wrappers in <asm/syscall_wrapper.h> use const struct pt_regs * as the argument type. Use const in syscall_fn_t as well to fix indirect call type mismatches with Control-Flow Integrity checking. Signed-off-by: NSami Tolvanen <samitolvanen@google.com> Reviewed-by: NMark Rutland <mark.rutland@arm.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NSasha Levin <sashal@kernel.org>
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