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zram: fix unused 'zram_wb_devops' warning

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drivers/block/zram/zram_drv.c:55:45: warning: 'zram_wb_devops' defined but not used [-Wunused-const-variable=]

Fix the above warning if CONFIG_ZRAM_WRITEBACK not enabled.

Link: https://lkml.kernel.org/r/20220608072534.68850-1-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Kefeng Wang 2022-06-08 15:25:34 +08:00 committed by akpm
parent 0d8bc0b10a
commit 13c1c74af7
1 changed files with 2 additions and 0 deletions
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2
drivers/block/zram/zram_drv.c
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@ -52,7 +52,9 @@ static unsigned int num_devices = 1;
static size_t huge_class_size;
static const struct block_device_operations zram_devops;
#ifdef CONFIG_ZRAM_WRITEBACK
static const struct block_device_operations zram_wb_devops;
#endif
static void zram_free_page(struct zram *zram, size_t index);
static int zram_bvec_read(struct zram *zram, struct bio_vec *bvec,