linux-kernel - [GIT PULL] x86 fixes

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Date:   Sat, 6 Aug 2022 21:29:39 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>
Subject: [GIT PULL] x86 fixes

Linus,

Please pull the latest x86/urgent git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-2022-08-06

   # HEAD: de979c83574abf6e78f3fa65b716515c91b2613d x86/entry: Build thunk_$(BITS) only if CONFIG_PREEMPTION=y

Misc fixes:

 - an old(er) binutils build fix,
 - a new-GCC build fix,
 - and a kexec boot environment fix.

NOTE, there's a new conflict in arch/x86/um/Makefile, due to these two 
commits interacting:

  upstream:      # 5b301409e8bc UML: add support for KASAN under x86_64
                 # adds two new targets to the single subarch-y line

  x86/urgent:    # de979c83574a x86/entry: Build thunk_$(BITS) only if CONFIG_PREEMPTION=y
                 # splits the ../entry/thunk_64.o target from the subarch-y line

it's a context conflict only, my resolution was:

  subarch-y = ../lib/csum-partial_64.o ../lib/memcpy_64.o ../lib/memmove_64.o ../lib/memset_64.o
  subarch-$(CONFIG_PREEMPTION) += ../entry/thunk_64.o

Thanks,

	Ingo

------------------>
Andrea Righi (1):
      x86/entry: Build thunk_$(BITS) only if CONFIG_PREEMPTION=y

Chenyi Qiang (1):
      x86/bus_lock: Don't assume the init value of DEBUGCTLMSR.BUS_LOCK_DETECT to be zero

Siddh Raman Pant (1):
      x86/numa: Use cpumask_available instead of hardcoded NULL check


 arch/x86/entry/Makefile     |  3 ++-
 arch/x86/entry/thunk_32.S   |  2 --
 arch/x86/entry/thunk_64.S   |  4 ----
 arch/x86/kernel/cpu/intel.c | 27 ++++++++++++++-------------
 arch/x86/mm/numa.c          |  4 ++--
 arch/x86/um/Makefile        |  3 ++-
 6 files changed, 20 insertions(+), 23 deletions(-)