[PATCH] powerpc: Use ARRAY_SIZE for array length

[PATCH] powerpc: Use ARRAY_SIZE for array length

[Jiapeng Chong]

Use of macro ARRAY_SIZE to calculate array size minimizes
the redundant code and improves code reusability.

./arch/powerpc/xmon/ppc-opc.c:957:67-68: WARNING: Use ARRAY_SIZE.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7612
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
---
 arch/powerpc/xmon/ppc-opc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/xmon/ppc-opc.c b/arch/powerpc/xmon/ppc-opc.c
index 0774d711453e..d409d6113f82 100644
--- a/arch/powerpc/xmon/ppc-opc.c
+++ b/arch/powerpc/xmon/ppc-opc.c
@@ -954,8 +954,7 @@ const struct powerpc_operand powerpc_operands[] =
   { 0xff, 11, NULL, NULL, PPC_OPERAND_SIGNOPT },
 };
 
-const unsigned int num_powerpc_operands = (sizeof (powerpc_operands)
-					   / sizeof (powerpc_operands[0]));
+const unsigned int num_powerpc_operands = ARRAY_SIZE(powerpc_operands);
 
 /* The functions used to insert and extract complicated operands.  */
 
-- 
2.20.1.7.g153144c

Re: [PATCH] powerpc: Use ARRAY_SIZE for array length

[Michael Ellerman]

Jiapeng Chong <jiapeng.chong@linux.alibaba.com> writes:
> Use of macro ARRAY_SIZE to calculate array size minimizes
> the redundant code and improves code reusability.
>
> ./arch/powerpc/xmon/ppc-opc.c:957:67-68: WARNING: Use ARRAY_SIZE.
>
> Reported-by: Abaci Robot <abaci@linux.alibaba.com>
> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7612
> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
> ---
>  arch/powerpc/xmon/ppc-opc.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)

This code is copied from binutils, we don't take cleanup patches to it.

See also the at least three times this has already been submitted :)

https://lore.kernel.org/all/4ed43222-17b0-8355-f836-adabb453e432@csgroup.eu/
https://lore.kernel.org/linuxppc-dev/20181004171036.GA1907@embeddedor.com/
https://lore.kernel.org/linuxppc-dev/874lfxjnzl.fsf@concordia.ellerman.id.au/

cheers