arm64: Do not forget syscall when starting a new thread.
[ Upstream commit de692185 ] Enable tracing of the execve*() system calls with the syscalls:sys_exit_execve tracepoint by removing the call to forget_syscall() when starting a new thread and preserving the value of regs->syscallno across exec. Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com> Link: https://lore.kernel.org/r/20220608162447.666494-2-flaniel@linux.microsoft.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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