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h8300: Correct signature of test_bit()

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mm/filemap.c: In function 'clear_bit_unlock_is_negative_byte':
    mm/filemap.c:1181:30: warning: passing argument 2 of 'test_bit' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers]
      return test_bit(PG_waiters, mem);
				  ^~~
    In file included from include/linux/bitops.h:38,
		     from include/linux/kernel.h:11,
		     from include/linux/list.h:9,
		     from include/linux/wait.h:7,
		     from include/linux/wait_bit.h:8,
		     from include/linux/fs.h:6,
		     from include/linux/dax.h:5,
		     from mm/filemap.c:14:
    arch/h8300/include/asm/bitops.h:69:57: note: expected 'const long unsigned int *' but argument is of type 'volatile void *'
     static inline int test_bit(int nr, const unsigned long *addr)
					~~~~~~~~~~~~~~~~~~~~~^~~~

Make the bitmask pointed to by the "addr" parameter volatile to fix
this, like is done on other architectures.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
This commit is contained in:
Geert Uytterhoeven 2018-06-21 21:24:44 +02:00 committed by Yoshinori Sato
parent 558e6694cd
commit 5743ee22bf
1 changed files with 1 additions and 1 deletions
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2
arch/h8300/include/asm/bitops.h
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@ -66,7 +66,7 @@ H8300_GEN_BITOP(change_bit, "bnot")
#undef H8300_GEN_BITOP
static inline int test_bit(int nr, const unsigned long *addr)
static inline int test_bit(int nr, const volatile unsigned long *addr)
{
int ret = 0;
unsigned char *b_addr;