nios2: Use IS_ENABLED instead of #ifdefs to check config symbols

Make the checking for div/mul/mulx instruction config symbols easier to
read by using IS_ENABLED instead of #ifdefs.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>

diff --git a/arch/nios2/kernel/cpuinfo.c b/arch/nios2/kernel/cpuinfo.c
index b8081c5..51d5bb9 100644 (file)
--- a/arch/nios2/kernel/cpuinfo.c
+++ b/arch/nios2/kernel/cpuinfo.c
@@ -73,18 +73,14 @@ void __init setup_cpuinfo(void)
        cpuinfo.has_mul = fcpu_has(cpu, "altr,has-mul");
        cpuinfo.has_mulx = fcpu_has(cpu, "altr,has-mulx");
 
-#ifdef CONFIG_NIOS2_HW_DIV_SUPPORT
-       if (!cpuinfo.has_div)
+       if (IS_ENABLED(CONFIG_NIOS2_HW_DIV_SUPPORT) && !cpuinfo.has_div)
                err_cpu("DIV");
-#endif
-#ifdef CONFIG_NIOS2_HW_MUL_SUPPORT
-       if (!cpuinfo.has_mul)
+
+       if (IS_ENABLED(CONFIG_NIOS2_HW_MUL_SUPPORT) && !cpuinfo.has_mul)
                err_cpu("MUL");
-#endif
-#ifdef CONFIG_NIOS2_HW_MULX_SUPPORT
-       if (!cpuinfo.has_mulx)
+
+       if (IS_ENABLED(CONFIG_NIOS2_HW_MULX_SUPPORT) && !cpuinfo.has_mulx)
                err_cpu("MULX");
-#endif
 
        cpuinfo.tlb_num_ways = fcpu(cpu, "altr,tlb-num-ways");
        if (!cpuinfo.tlb_num_ways)