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All architectures create on-stack structure for floating point save area in compel_get_task_regs() if the caller passes NULL rather than a valid pointer. The only place that calls compel_get_task_regs() with NULL for floating point save area is parasite_start_daemon() and it is simpler to define this strucuture on stack of parasite_start_daemon(). The availability of floating point save data is required in parasite_start_daemon() to detect shadow stack presence early during parasite infection and will be used in later patches. Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org> |
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