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blockdev: Make orphaned -drive fatal

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Block backends defined with "-drive if=T" with T other than "none" are
meant to be picked up by machine initialization code: a suitable
frontend gets created and wired up automatically.

If machine initialization code doesn't comply, the block backend
remains unused.  This triggers a warning since commit a66c9dc, v2.2.0.
Drives created by default are exempted; use -nodefaults to get rid of
them.

Turn this warning into an error.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1487153147-11530-8-git-send-email-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Markus Armbruster 2017-02-15 11:05:46 +01:00
parent 664cc623bf
commit 720b8dc052
2 changed files with 8 additions and 8 deletions
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2
include/sysemu/blockdev.h
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@ -48,7 +48,7 @@ BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo);
void override_max_devs(BlockInterfaceType type, int max_devs);
DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
bool drive_check_orphaned(void);
void drive_check_orphaned(void);
DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
int drive_get_max_bus(BlockInterfaceType type);
int drive_get_max_devs(BlockInterfaceType type);