MIPS: Optimize current_cpu_type() for better code.
o Move current_cpu_type() to a separate header file
o #ifdefing on supported CPU types lets modern GCC know that certain
code in callers may be discarded ideally turning current_cpu_type() into
a function returning a constant.
o Use current_cpu_type() rather than direct access to struct cpuinfo_mips.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5833/
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index 42f8875..f7991d9 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -18,6 +18,7 @@
#include <linux/sched.h>
#include <asm/cpu.h>
#include <asm/cpu-info.h>
+#include <asm/cpu-type.h>
#include <asm/idle.h>
#include <asm/mipsregs.h>
@@ -136,7 +137,7 @@
return;
}
- switch (c->cputype) {
+ switch (current_cpu_type()) {
case CPU_R3081:
case CPU_R3081E:
cpu_wait = r3081_wait;