linux-kernel - Re: [PATCH 2/3] btrfs: remove set but not used variable 'parent'

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Date:   Wed, 19 Feb 2020 13:34:53 +0200
From:   Nikolay Borisov <nborisov@...e.com>
To:     yu kuai <yukuai3@...wei.com>, clm@...com, josef@...icpanda.com,
        dsterba@...e.com
Cc:     linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
        zhengbin13@...wei.com, yi.zhang@...wei.com
Subject: Re: [PATCH 2/3] btrfs: remove set but not used variable 'parent'



On 19.02.20 г. 13:22 ч., yu kuai wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
> 
> fs/btrfs/tree-log.c: In function ‘walk_down_log_tree’:
> fs/btrfs/tree-log.c:2702:24: warning: variable ‘parent’
> set but not used [-Wunused-but-set-variable]
> fs/btrfs/tree-log.c: In function ‘walk_up_log_tree’:
> fs/btrfs/tree-log.c:2803:26: warning: variable ‘parent’
> set but not used [-Wunused-but-set-variable]
> 
> They are never used, and so can be removed.
> 
> Signed-off-by: yu kuai <yukuai3@...wei.com>

Ah yes, those two are a result of my :

e084c5ab48f9 ("btrfs: Call btrfs_pin_reserved_extent only during active
transaction")  (in misc-next branch)

David perhaps you can squash the two var removals into the original patch?


Reviewed-by: Nikolay Borisov <nborisov@...e.com>