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-rw-r--r--arch/mips/math-emu/cp1emu.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index 8034ee4..3a90170 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -919,8 +919,9 @@ static inline void cop1_ctc(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
pr_debug("%p gpr[%d]->csr=%08x\n",
(void *)xcp->cp0_epc, MIPSInst_RT(ir), value);
- /* Don't write reserved bits. */
- fcr31 = value & ~FPU_CSR_RSVD;
+ /* Don't write unsupported bits. */
+ fcr31 = value &
+ ~(FPU_CSR_RSVD | FPU_CSR_ABS2008 | FPU_CSR_NAN2008);
break;
case FPCREG_FENR:
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