m68k: mm: Include <asm/hwtest.h> for hwreg_()

When building with W=1:

    arch/m68k/mm/hwtest.c:29:5: warning: no previous prototype for ‘hwreg_present’ [-Wmissing-prototypes]
       29 | int hwreg_present(volatile void *regp)
	  |     ^~~~~~~~~~~~~
    arch/m68k/mm/hwtest.c:62:5: warning: no previous prototype for ‘hwreg_write’ [-Wmissing-prototypes]
       62 | int hwreg_write(volatile void *regp, unsigned short val)
	  |     ^~~~~~~~~~~

Fix this by including <asm/hwtest.h>.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/fbd87d8e8d1e8cbe7d56941a8a1d7d82b53010d0.1694613528.git.geert@linux-m68k.org

diff --git a/arch/m68k/mm/hwtest.c b/arch/m68k/mm/hwtest.c
index fe99aa99987e9c38f153d54ad2b1cc512016fc8a..8ee7a336868868bb0e6316608b3835f0c9539944 100644 (file)
--- a/arch/m68k/mm/hwtest.c
+++ b/arch/m68k/mm/hwtest.c
@@ -26,6 +26,8 @@
 
 #include <linux/module.h>
 
+#include <asm/hwtest.h>
+
 int hwreg_present(volatile void *regp)
 {
        int ret = 0;