RISC-V Fixes for 5.7-rc7

This tag contains two fixes:
 
 * Another !MMU build fix that was a straggler from last week.
 * A fix to use the "register" keyword for the GP global register variable.
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Merge tag 'riscv-for-linus-5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:
 "Two fixes:

   - Another !MMU build fix that was a straggler from last week

   - A fix to use the "register" keyword for the GP global register
     variable"

* tag 'riscv-for-linus-5.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: gp_in_global needs register keyword
  riscv: Fix print_vm_layout build error if NOMMU

arch/riscv/kernel/process.c

@@ -22,7 +22,7 @@
 #include <asm/switch_to.h>
 #include <asm/thread_info.h>
 
-unsigned long gp_in_global __asm__("gp");
+register unsigned long gp_in_global __asm__("gp");
 
 extern asmlinkage void ret_from_fork(void);
 extern asmlinkage void ret_from_kernel_thread(void);

arch/riscv/mm/init.c

@@ -47,7 +47,7 @@ static void setup_zero_page(void)
 	memset((void *)empty_zero_page, 0, PAGE_SIZE);
 }
 
-#ifdef CONFIG_DEBUG_VM
+#if defined(CONFIG_MMU) && defined(CONFIG_DEBUG_VM)
 static inline void print_mlk(char *name, unsigned long b, unsigned long t)
 {
 	pr_notice("%12s : 0x%08lx - 0x%08lx   (%4ld kB)\n", name, b, t,