linux-kernel - [PATCHv2 0/2] arm64: fix hotplug rwsem boot fallout

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Date:   Thu, 27 Apr 2017 18:44:35 +0100
From:   Mark Rutland <mark.rutland@....com>
To:     will.deacon@....com, catalin.marinas@....com, tglx@...utronix.de
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        bigeasy@...utronix.de, jbaron@...mai.com, mark.rutland@....com,
        peterz@...radead.org, rostedt@...dmis.org, suzuki.poulose@....com
Subject: [PATCHv2 0/2] arm64: fix hotplug rwsem boot fallout

Hi,

These patches address a boot failure on arm64 observed when booting a kernel
built with the hotplug rwsem changes currently queued in the tip smp/hotplug
branch.

I've given these a spin on Juno R1, which now boots happily.

FWIW, I also did a test-merge with the arm64 for-next/core branch, which git
was able to figure it out automatically. The result builds cleanly and boots
without issue on Juno R1.

Catalin/Will, assuming there are no further gotchas, are you happy for the
arm64 patch to go via the tip tree?

Thanks,
Mark.

Since v1 [1]:
* Fix update_cpu_capabilities() by splitting boot/secondary

[1] https://lkml.kernel.org/r/20170427154806.GA6646@leverpostej

Mark Rutland (1):
  arm64: cpufeature: use static_branch_enable_cpuslocked()

Sebastian Andrzej Siewior (1):
  jump_label: Provide static_key_[enable|/slow_inc]_cpuslocked()

 arch/arm64/include/asm/cpufeature.h |  5 +++--
 arch/arm64/kernel/cpu_errata.c      | 13 ++++++++++++-
 arch/arm64/kernel/cpufeature.c      |  5 ++++-
 arch/arm64/kernel/smp.c             |  7 +++----
 include/linux/jump_label.h          |  7 +++++++
 kernel/jump_label.c                 | 10 ++++++++++
 6 files changed, 39 insertions(+), 8 deletions(-)

-- 
1.9.1