linux-kernel - 3.0.1-rt9 regression: Build is now broken on migrate

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Date:	Sat, 13 Aug 2011 12:14:30 +0200
From:	Remy Bohmer <linux@...mer.net>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Paul E. McKenney" <paulmck@...ibm.com>,
	linux-rt-users <linux-rt-users@...r.kernel.org>
Subject: 3.0.1-rt9 regression: Build is now broken on migrate_[dis|en]able (on ARM)

Hi Peter,

>  - added a few more patches that mostly clean up migrate_disable()

FYI: These patches probably are the reason that RT9 broke our build,
that worked on RT8, please find attached my .config
Maybe I can come up with a fix tomorrow if I can find some time to look into.

Kind regards,

Remy

  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
arch/arm/kernel/built-in.o: In function `handle_signal':
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/signal.c:640:
undefined reference to `migrate_disable'
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/signal.c:646:
undefined reference to `migrate_enable'
arch/arm/kernel/built-in.o: In function `restore_sigframe':
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/signal.c:284:
undefined reference to `migrate_disable'
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/signal.c:287:
undefined reference to `migrate_enable'
arch/arm/kernel/built-in.o: In function `sys_sigsuspend':
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/signal.c:70:
undefined reference to `migrate_disable'
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/signal.c:74:
undefined reference to `migrate_enable'
arch/arm/kernel/built-in.o: In function `unwind_find_idx':
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/unwind.c:143:
undefined reference to `migrate_disable'
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/unwind.c:154:
undefined reference to `migrate_enable'
arch/arm/kernel/built-in.o: In function `unwind_table_add':
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/unwind.c:420:
undefined reference to `migrate_disable'
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/unwind.c:422:
undefined reference to `migrate_enable'
arch/arm/kernel/built-in.o: In function `unwind_table_del':
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/unwind.c:434:
undefined reference to `migrate_disable'
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/kernel/unwind.c:436:
undefined reference to `migrate_enable'
arch/arm/mm/built-in.o: In function `make_coherent':
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/mm/fault-armv.c:150:
undefined reference to `migrate_disable'
/home/bohm/EDS_SW-build/bsp-at91sam9261-ek-base-base/platform/build-target/linux-3.0/arch/arm/mm/fault-armv.c:164:
undefined reference to `migrate_enable'
... and a couple of hundred similar errors more...

Download attachment ".config" of type "application/octet-stream" (40788 bytes)