x86/microcode: Remove microcode_mutex

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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

  181b6f40e9 ("x86/microcode: Rip out the OLD_INTERFACE").
  b6f86689d5 ("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 the superfluous microcode_mutex.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Sohil Mehta <sohil.mehta@intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230804075853.JF_n6GXC@linutronix.de

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This commit is contained in:

Sebastian Andrzej Siewior 2023-08-04 09:58:53 +02:00 • committed by Borislav Petkov (AMD)

parent 05e91e7211

commit 80347cd515

2 changed files with 1 additions and 8 deletions

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3

arch/x86/kernel/cpu/common.c

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6

arch/x86/kernel/cpu/microcode/core.c

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