linux-kernel - [PATCH 00/10] Kconfig: cleanup SERIO

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Date:	Sat, 14 Dec 2013 11:59:26 -0500
From:	Mark Salter <msalter@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Mark Salter <msalter@...hat.com>
Subject: [PATCH 00/10] Kconfig: cleanup SERIO_I8042 dependencies

This patch series removes the messy dependencies from SERIO_I8042
by having it depend on one variable (ARCH_MAY_HAVE_PC_SERIO) and
having architectures which need it select that variable in
arch/*/Kconfig.

New architectures are unlikely to need SERIO_I8042, so this avoids
having an ever growing list of architectures to exclude. If an
architecture without i8042 support isn't excluded through the
dependency list for SERIO_I8042 or through explicit disabling in
a config, it will likely panic on boot with something similar to
this (from arm64):

[   27.426181] [<ffffffc000403b1c>] i8042_flush+0x88/0x10c
[   27.426251] [<ffffffc00084cc2c>] i8042_init+0x58/0xe8
[   27.426320] [<ffffffc000080bec>] do_one_initcall+0xc4/0x14c
[   27.426404] [<ffffffc000820970>] kernel_init_freeable+0x1a4/0x244
[   27.426480] [<ffffffc0005a894c>] kernel_init+0x18/0x148
[   27.426561] Code: d2800c82 f2bf7c02 f2dff7e2 f2ffffe2 (39400042) 
[   27.426789] ---[ end trace ac076843cf0f383e ]---
[   27.426875] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

A tree with these patches is at:

   git://github.com/mosalter/linux.git (serio-i8042 branch)

Mark Salter (10):
  alpha: select ARCH_MIGHT_HAVE_PC_SERIO
  arm: select ARCH_MIGHT_HAVE_PC_SERIO
  ia64: select ARCH_MIGHT_HAVE_PC_SERIO
  mips: select ARCH_MIGHT_HAVE_PC_SERIO
  powerpc: select ARCH_MIGHT_HAVE_PC_SERIO
  sh: select ARCH_MIGHT_HAVE_PC_SERIO
  sparc: select ARCH_MIGHT_HAVE_PC_SERIO
  unicore32: select ARCH_MIGHT_HAVE_PC_SERIO
  x86: select ARCH_MIGHT_HAVE_PC_SERIO
  Kconfig: cleanup SERIO_I8042 dependencies

 arch/alpha/Kconfig          |  1 +
 arch/arm/Kconfig            |  1 +
 arch/ia64/Kconfig           |  1 +
 arch/mips/Kconfig           |  1 +
 arch/powerpc/Kconfig        |  1 +
 arch/sh/Kconfig             |  1 +
 arch/sparc/Kconfig          |  1 +
 arch/unicore32/Kconfig      |  1 +
 arch/x86/Kconfig            |  1 +
 drivers/input/serio/Kconfig | 11 ++++++++---
 10 files changed, 17 insertions(+), 3 deletions(-)

-- 
1.8.3.1

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