[merged] drivers-block-null_blk_mainc-fix-uninitialized-var-warnings.patch removed from -mm tree

[merged] drivers-block-null_blk_mainc-fix-uninitialized-var-warnings.patch removed from -mm tree

[akpm]

The patch titled
     Subject: drivers/block/null_blk_main.c: fix uninitialized var warnings
has been removed from the -mm tree.  Its filename was
     drivers-block-null_blk_mainc-fix-uninitialized-var-warnings.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: drivers/block/null_blk_main.c: fix uninitialized var warnings

With gcc-7.2, many instances of

drivers/block/null_blk_main.c: In function ‘nullb_device_zone_nr_conv_store’:
drivers/block/null_blk_main.c:291:12: warning: ‘new_value’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;      \
            ^
drivers/block/null_blk_main.c:279:7: note: ‘new_value’ was declared here
  TYPE new_value;       \
       ^

Presumably notabug, so use uninitialized_var() to suppress them.

Cc: Shaohua Li <shli@fb.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/block/null_blk_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/block/null_blk_main.c~drivers-block-null_blk_mainc-fix-uninitialized-var-warnings
+++ a/drivers/block/null_blk_main.c
@@ -276,7 +276,7 @@ nullb_device_##NAME##_store(struct confi
 {									\
 	int (*apply_fn)(struct nullb_device *dev, TYPE new_value) = APPLY;\
 	struct nullb_device *dev = to_nullb_device(item);		\
-	TYPE new_value;							\
+	TYPE uninitialized_var(new_value);				\
 	int ret;							\
 									\
 	ret = nullb_device_##TYPE##_attr_store(&new_value, page, count);\
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

mm.patch
linux-next-fix.patch
drivers-tty-serial-sh-scic-suppress-warning.patch
kernel-forkc-export-kernel_thread-to-modules.patch