target/linux/generic/patches-4.4/331-arc-remove-dependency-on-DEVTMPFS.patch

   1 From adfbf9e6cad93281cffceab078e7f6f2a8e094f9 Mon Sep 17 00:00:00 2001
   2 From: Alexey Brodkin <abrodkin@synopsys.com>
   3 Date: Thu, 13 Aug 2015 01:56:02 +0300
   4 Subject: [PATCH 1/2] openwrt: arc - remove dependency on DEVTMPFS
   5
   6 OpenWRT builds initramfs so that it doesn't require DEVTMPFS so dropping
   7 this dependency. That helps to escape 2 separate kernel rebuilds with
   8 and without initramfs.
   9
  10 2 builds happen because OpenWRT first builds kernel and later modules.
  11 When building entire kernel with simple "make" INITRAMFS sets to a real
  12 value and so was triggering DEVTMPFS selection. Then when building only
  13 modules with "make modules" command INITRAMFS is zeroed and so kernel
  14 config was changing that lead to full kernel rebuild.
  15
  16 Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
  17 ---
  18  arch/arc/Kconfig | 2 --
  19  1 file changed, 2 deletions(-)
  20
  21 --- a/arch/arc/Kconfig
  22 +++ b/arch/arc/Kconfig
  23 @@ -12,8 +12,6 @@ config ARC
  24         select BUILDTIME_EXTABLE_SORT
  25         select COMMON_CLK
  26         select CLONE_BACKWARDS
  27 -       # ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
  28 -       select DEVTMPFS if !INITRAMFS_SOURCE=""
  29         select GENERIC_ATOMIC64
  30         select GENERIC_CLOCKEVENTS
  31         select GENERIC_FIND_FIRST_BIT