Merge tag 'v3.15-rc1' into patchwork

Linux 3.15-rc1

* tag 'v3.15-rc1': (12180 commits)
  Linux 3.15-rc1
  mm: Initialize error in shmem_file_aio_read()
  cifs: Use min_t() when comparing "size_t" and "unsigned long"
  sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue
  powerpc: Don't try to set LPCR unless we're in hypervisor mode
  futex: update documentation for ordering guarantees
  ceph: fix pr_fmt() redefinition
  vti: don't allow to add the same tunnel twice
  gre: don't allow to add the same tunnel twice
  drivers: net: xen-netfront: fix array initialization bug
  missing bits of "splice: fix racy pipe->buffers uses"
  cifs: fix the race in cifs_writev()
  ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
  pktgen: be friendly to LLTX devices
  r8152: check RTL8152_UNPLUG
  net: sun4i-emac: add promiscuous support
  net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
  blackfin: cleanup board files
  bf609: clock: drop unused clock bit set/clear functions
  Blackfin: bf537: rename "CONFIG_ADT75"
  ...

1 files changed, 20 insertions, 3 deletions

diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 6ae540e133b..60e39dc7f1e 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -32,6 +32,7 @@
 #include <asm/cpu.h>
 #include <asm/dsp.h>
 #include <asm/fpu.h>
+#include <asm/msa.h>
 #include <asm/pgtable.h>
 #include <asm/mipsregs.h>
 #include <asm/processor.h>
@@ -65,6 +66,8 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp)
 	clear_used_math();
 	clear_fpu_owner();
 	init_dsp();
+	clear_thread_flag(TIF_MSA_CTX_LIVE);
+	disable_msa();
 	regs->cp0_epc = pc;
 	regs->regs[29] = sp;
 }
@@ -89,7 +92,9 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 
 	preempt_disable();
 
-	if (is_fpu_owner())
+	if (is_msa_enabled())
+		save_msa(p);
+	else if (is_fpu_owner())
 		save_fp(p);
 
 	if (cpu_has_dsp)
@@ -157,7 +162,13 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 /* Fill in the fpu structure for a core dump.. */
 int dump_fpu(struct pt_regs *regs, elf_fpregset_t *r)
 {
-	memcpy(r, &current->thread.fpu, sizeof(current->thread.fpu));
+	int i;
+
+	for (i = 0; i < NUM_FPU_REGS; i++)
+		memcpy(&r[i], &current->thread.fpu.fpr[i], sizeof(*r));
+
+	memcpy(&r[NUM_FPU_REGS], &current->thread.fpu.fcr31,
+	       sizeof(current->thread.fpu.fcr31));
 
 	return 1;
 }
@@ -192,7 +203,13 @@ int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
 
 int dump_task_fpu(struct task_struct *t, elf_fpregset_t *fpr)
 {
-	memcpy(fpr, &t->thread.fpu, sizeof(current->thread.fpu));
+	int i;
+
+	for (i = 0; i < NUM_FPU_REGS; i++)
+		memcpy(&fpr[i], &t->thread.fpu.fpr[i], sizeof(*fpr));
+
+	memcpy(&fpr[NUM_FPU_REGS], &t->thread.fpu.fcr31,
+	       sizeof(t->thread.fpu.fcr31));
 
 	return 1;
 }