The patch titled
Subject: zram: fix unused 'zram_wb_devops' warning
has been added to the -mm mm-unstable branch. Its filename is
zram-fix-unused-zram_wb_devops-warning.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zram-fix-unused-zram_wb_devops-warning.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: zram: fix unused 'zram_wb_devops' warning
Date: Wed, 8 Jun 2022 15:25:34 +0800
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@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Reviewed-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Nitin Gupta <ngupta@xxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/block/zram/zram_drv.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/block/zram/zram_drv.c~zram-fix-unused-zram_wb_devops-warning
+++ a/drivers/block/zram/zram_drv.c
@@ -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,
_
Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are
zram-fix-unused-zram_wb_devops-warning.patch
