The default implementation of 'cpu_has_fpu' macro calls
smp_processor_id() which causes this warning to be printed when
preemption is enabled:
[ 4.664000] Algorithmics/MIPS FPU Emulator v1.5
[ 4.676000] BUG: using smp_processor_id() in preemptible [00000000] code: ini
[ 4.700000] caller is fpu_emulator_cop1Handler+0x434/0x27b8
Use 'raw_cpu_has_fpu' macro in cop1_64bit() instead of 'cpu_has_fpu'
to fix this. Fix suggested by Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Jayachandran C <jchandra@xxxxxxxxxxxx>
---
arch/mips/math-emu/cp1emu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index a03bf00..663bfb9 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -178,7 +178,7 @@ static int isBranchInstr(mips_instruction * i)
*/
static inline int cop1_64bit(struct pt_regs *xcp)
{
- if (cpu_has_fpu)
+ if (raw_cpu_has_fpu)
return xcp->cp0_status & ST0_FR;
#ifdef CONFIG_64BIT
return !test_thread_flag(TIF_32BIT_REGS);
--
1.7.9.5
