x86/microcode: Remove microcode_mutex.
microcode_mutex is only used by reload_store(). It has a comment saying "to synchronize with each other". Other user of this mutex have been removed in the commits 181b6f40 ("x86/microcode: Rip out the OLD_INTERFACE"). b6f86689 ("x86/microcode: Rip out the subsys interface gunk") The sysfs interface does not need additional synchronisation vs itself because it is provided as kernfs_ops::mutex which is acquired in kernfs_fop_write_iter(). Remove superfluous microcode_mutex. Link: https://lore.kernel.org/r/20230803083253.VGMnC9Gd@linutronix.de Link: https://lore.kernel.org/r/20230804075853.JF_n6GXC@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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66057276
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