Hi,
could it be a real problem?
> CC drivers/md/bcache/btree_io.o
> In file included from ./arch/x86/include/asm/bug.h:35:0,
> from ./include/linux/bug.h:4,
> from drivers/md/bcache/bcache.h:181,
> from drivers/md/bcache/btree_io.c:2:
> drivers/md/bcache/btree_io.c: In function ‘sort_extent_whiteouts’:
> ./include/asm-generic/bug.h:55:35: warning: ‘l_packed’ may be used uninitialized in this function [-Wmaybe-uninitialized]
> #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
> ^
> drivers/md/bcache/btree_io.c:203:21: note: ‘l_packed’ was declared here
> bool prev = false, l_packed;
> ^
> CC drivers/md/bcache/btree_iter.o
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