Re: [PATCH] zonefs: delete useless complex macro definitions

From: Damien Le Moal
Date: Wed May 12 2021 - 06:53:46 EST


On 2021/05/12 15:45, jinchao wrote:
> Fixes checkpatch.pl error: Macros with complex values should be enclosed
> in parentheses. By deleting the macro definition

I would suggest something like this:

Avoid checkpatch and other static code analyzer warnings about macros with
complex values not being enclosed in parenthesis by removing the show_dev() macro.

>
> Signed-off-by: jinchao <wjc@xxxxxxxxxx>

Please sign with your full name. From your other email, reading your name in
Chinese, if I am not mistaken, it should be:

Signed-off-by: Jinchao Wang <wjc@xxxxxxxxxx>

> ---
> fs/zonefs/trace.h | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/fs/zonefs/trace.h b/fs/zonefs/trace.h
> index 5b0c87d331a1..1f98713774f5 100644
> --- a/fs/zonefs/trace.h
> +++ b/fs/zonefs/trace.h
> @@ -17,7 +17,6 @@
>
> #include "zonefs.h"
>
> -#define show_dev(dev) (MAJOR(dev), MINOR(dev))
>
> TRACE_EVENT(zonefs_zone_mgmt,
> TP_PROTO(struct inode *inode, enum req_opf op),
> @@ -38,7 +37,7 @@ TRACE_EVENT(zonefs_zone_mgmt,
> ZONEFS_I(inode)->i_zone_size >> SECTOR_SHIFT;
> ),
> TP_printk("bdev=(%d,%d), ino=%lu op=%s, sector=%llu, nr_sectors=%llu",
> - show_dev(__entry->dev), (unsigned long)__entry->ino,
> + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long)__entry->ino,
> blk_op_str(__entry->op), __entry->sector,
> __entry->nr_sectors
> )

Please rewrap the arguments to avoid the long lines. E.g.:

TP_printk("bdev=(%d,%d), ino=%lu op=%s, sector=%llu, nr_sectors=%llu",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long)__entry->ino,
blk_op_str(__entry->op), __entry->sector,
__entry->nr_sectors
)

> @@ -64,7 +63,7 @@ TRACE_EVENT(zonefs_file_dio_append,
> __entry->ret = ret;
> ),
> TP_printk("bdev=(%d, %d), ino=%lu, sector=%llu, size=%zu, wpoffset=%llu, ret=%zu",
> - show_dev(__entry->dev), (unsigned long)__entry->ino,
> + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long)__entry->ino,
> __entry->sector, __entry->size, __entry->wpoffset,
> __entry->ret
> )
> @@ -88,7 +87,7 @@ TRACE_EVENT(zonefs_iomap_begin,
> __entry->length = iomap->length;
> ),
> TP_printk("bdev=(%d,%d), ino=%lu, addr=%llu, offset=%llu, length=%llu",
> - show_dev(__entry->dev), (unsigned long)__entry->ino,
> + MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long)__entry->ino,
> __entry->addr, __entry->offset, __entry->length
> )
> );
>


--
Damien Le Moal
Western Digital Research