MIPS: Sink body of check_bugs_early() into its only call site

If check_bugs_early() is not inlined, which a compiler is free to do
after commit ac7c3e4f ("compiler: enable CONFIG_OPTIMIZE_INLINING
forcibly"), modpost would warn that check_bugs_early(), a non-init
function, refers to check_bugs64_early(), which is marked __init. This
would not result in any run time issues, as check_bugs_early() is only
called from setup_arch(), which is marked __init.

To avoid this potential warning, just sink the body of
check_bugs_early() into its single call site in setup_arch().
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/include/asm/bugs.h

@@ -24,12 +24,6 @@ extern void check_bugs64_early(void);
 extern void check_bugs32(void);
 extern void check_bugs64(void);
 
-static inline void check_bugs_early(void)
-{
-	if (IS_ENABLED(CONFIG_CPU_R4X00_BUGS64))
-		check_bugs64_early();
-}
-
 static inline void __init check_bugs(void)
 {
 	unsigned int cpu = smp_processor_id();

arch/mips/kernel/setup.c

@@ -786,7 +786,8 @@ void __init setup_arch(char **cmdline_p)
 	setup_early_printk();
 #endif
 	cpu_report();
-	check_bugs_early();
+	if (IS_ENABLED(CONFIG_CPU_R4X00_BUGS64))
+		check_bugs64_early();
 
 #if defined(CONFIG_VT)
 #if defined(CONFIG_VGA_CONSOLE)