On 15/03/2018 11:08 PM, Bart Van Assche wrote:
> This patch does not change any functionality.
>
> Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx>
Hi Bart,
This patch looks good to me. A question is, does GCC later than 4.3
supports such annotation like '__maybe_unused' ?
Thanks.
Coly Li
> ---
> drivers/md/bcache/bset.c | 4 ++--
> drivers/md/bcache/journal.c | 2 +-
> 2 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
> index e56d3ecdbfcb..579c696a5fe0 100644
> --- a/drivers/md/bcache/bset.c
> +++ b/drivers/md/bcache/bset.c
> @@ -1072,7 +1072,7 @@ EXPORT_SYMBOL(bch_btree_iter_init);
> static inline struct bkey *__bch_btree_iter_next(struct btree_iter *iter,
> btree_iter_cmp_fn *cmp)
> {
> - struct btree_iter_set unused;
> + struct btree_iter_set b __maybe_unused;
> struct bkey *ret = NULL;
>
> if (!btree_iter_end(iter)) {
> @@ -1087,7 +1087,7 @@ static inline struct bkey *__bch_btree_iter_next(struct btree_iter *iter,
> }
>
> if (iter->data->k == iter->data->end)
> - heap_pop(iter, unused, cmp);
> + heap_pop(iter, b, cmp);
> else
> heap_sift(iter, 0, cmp);
> }
> diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
> index 1b736b860739..605368ff13c9 100644
> --- a/drivers/md/bcache/journal.c
> +++ b/drivers/md/bcache/journal.c
> @@ -493,7 +493,7 @@ static void journal_reclaim(struct cache_set *c)
> struct cache *ca;
> uint64_t last_seq;
> unsigned iter, n = 0;
> - atomic_t p;
> + atomic_t p __maybe_unused;
>
> atomic_long_inc(&c->reclaim);
>
>
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