Why is flags being backed up before calling cli

[C K Kashyap <ckkashyap@xxxxxxxxx>]

Hi,

I noticed that the flags register is being stored before doing 'cli' and then restored after calling 'sti'. - eg. in local_irq_save and local_irq_restore

Can someone tell me the scenario that is being guarded against by backing up flags?

Regards,

Kashyap

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