commit 2613f36ed965d0e5a595a1d931fd3b480e82d6fd
author Borislav Petkov <bp@suse.de> Wed Mar 14 19:36:14 2018 +0100
committer Thomas Gleixner <tglx@linutronix.de> Fri Mar 16 20:55:51 2018 +0100
tree 47c242f71716d90d80c84f6e8c2ac576737fc4a3
parent e3b3121fa8da94cb20f9e0c64ab7981ae47fd085

x86/microcode: Attempt late loading only when new microcode is present

Return UCODE_NEW from the scanning functions to denote that new microcode
was found and only then attempt the expensive synchronization dance.

Reported-by: Emanuel Czirai <xftroxgpx@protonmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Emanuel Czirai <xftroxgpx@protonmail.com>
Tested-by: Ashok Raj <ashok.raj@intel.com>
Tested-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lkml.kernel.org/r/20180314183615.17629-1-bp@alien8.de