On 01/29/2015 11:13 PM, Paul Burton wrote: > On Fri, Jan 16, 2015 at 10:49:46AM +0000, Markos Chandras wrote: >> A prctl() call to set FR=0 for MIPS R6 should not be allowed >> since FR=1 is the only option for R6 cores. >> >> Cc: Paul Burton <paul.burton@xxxxxxxxxx> >> Cc: Matthew Fortune <matthew.fortune@xxxxxxxxxx> >> Signed-off-by: Markos Chandras <markos.chandras@xxxxxxxxxx> >> --- >> arch/mips/include/asm/fpu.h | 3 ++- >> arch/mips/kernel/process.c | 4 ++++ >> 2 files changed, 6 insertions(+), 1 deletion(-) >> >> diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h >> index 994d21939676..b96d9d327626 100644 >> --- a/arch/mips/include/asm/fpu.h >> +++ b/arch/mips/include/asm/fpu.h >> @@ -68,7 +68,8 @@ static inline int __enable_fpu(enum fpu_mode mode) >> goto fr_common; >> >> case FPU_64BIT: >> -#if !(defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_64BIT)) >> +#if !(defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_CPU_MIPS32_R6) \ >> + || defined(CONFIG_64BIT)) > > Hi Markos, > > This change really seems like a separate one, since it has nothing to do > with the prctl or disallowing FR=1, but rather with allowing FR=1 on r6. > > Thanks, > Paul Thanks I will move it to a separate patch -- markos
