Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

Pull powerpc updates from Benjamin Herrenschmidt:
 "Here are the powerpc goodies for 3.5.  Main highlights are:

   - Support for the NX crypto engine in Power7+
   - A bunch of Anton goodness, including some micro optimization of our
     syscall entry on Power7
   - I converted a pile of our thermal control drivers to the new i2c
     APIs (essentially turning the old therm_pm72 into a proper set of
     windfarm drivers).  That's one more step toward removing the
     deprecated i2c APIs, there's still a few drivers to fix, but we are
     getting close
   - kexec/kdump support for 47x embedded cores

  The big missing thing here is no updates from Freescale.  Not sure
  what's up here, but with Kumar not working for them anymore things are
  a bit in a state of flux in that area."

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (71 commits)
  powerpc: Fix irq distribution
  Revert "powerpc/hw-breakpoint: Use generic hw-breakpoint interfaces for new PPC ptrace flags"
  powerpc: Fixing a cputhread code documentation
  powerpc/crypto: Enable the PFO-based encryption device
  powerpc/crypto: Build files for the nx device driver
  powerpc/crypto: debugfs routines and docs for the nx device driver
  powerpc/crypto: SHA512 hash routines for nx encryption
  powerpc/crypto: SHA256 hash routines for nx encryption
  powerpc/crypto: AES-XCBC mode routines for nx encryption
  powerpc/crypto: AES-GCM mode routines for nx encryption
  powerpc/crypto: AES-ECB mode routines for nx encryption
  powerpc/crypto: AES-CTR mode routines for nx encryption
  powerpc/crypto: AES-CCM mode routines for nx encryption
  powerpc/crypto: AES-CBC mode routines for nx encryption
  powerpc/crypto: nx driver code supporting nx encryption
  powerpc/pseries: Enable the PFO-based RNG accelerator
  powerpc/pseries/hwrng: PFO-based hwrng driver
  powerpc/pseries: Add PFO support to the VIO bus
  powerpc/pseries: Add pseries update notifier for OFDT prop changes
  powerpc/pseries: Add new hvcall constants to support PFO
  ...

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h
index caf82d0a00de..1a6320290d26 100644
--- a/arch/powerpc/include/asm/switch_to.h
+++ b/arch/powerpc/include/asm/switch_to.h
@@ -21,7 +21,6 @@ extern void disable_kernel_fp(void);
 extern void enable_kernel_fp(void);
 extern void flush_fp_to_thread(struct task_struct *);
 extern void enable_kernel_altivec(void);
-extern void giveup_altivec(struct task_struct *);
 extern void load_up_altivec(struct task_struct *);
 extern int emulate_altivec(struct pt_regs *);
 extern void __giveup_vsx(struct task_struct *);
@@ -40,10 +39,15 @@ static inline void discard_lazy_cpu_state(void)
 
 #ifdef CONFIG_ALTIVEC
 extern void flush_altivec_to_thread(struct task_struct *);
+extern void giveup_altivec(struct task_struct *);
+extern void giveup_altivec_notask(void);
 #else
 static inline void flush_altivec_to_thread(struct task_struct *t)
 {
 }
+static inline void giveup_altivec(struct task_struct *t)
+{
+}
 #endif
 
 #ifdef CONFIG_VSX