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Subject[PATCH -next] blkdev.h: fix warnings when CONFIG_BLOCK=n
From: Randy Dunlap <>

Fix lots of build warnings when CONFIG_BLOCK=n:

linux-next-20080916/include/linux/blkdev.h:1093: warning: 'struct block_device' declared inside parameter list
linux-next-20080916/include/linux/blkdev.h:1093: warning: its scope is only this definition or declaration, which is probably not what you want
linux-next-20080916/include/linux/blkdev.h:1097: warning: 'struct gendisk' declared inside parameter list
linux-next-20080916/include/linux/blkdev.h:1105: warning: 'struct hd_geometry' declared inside parameter list

Signed-off-by: Randy Dunlap <>
include/linux/blkdev.h | 4 ++++
1 file changed, 4 insertions(+)

--- linux-next-20080916.orig/include/linux/blkdev.h
+++ linux-next-20080916/include/linux/blkdev.h
@@ -1089,6 +1089,10 @@ static inline long nr_blockdev_pages(voi

#endif /* CONFIG_BLOCK */

+struct block_device;
+struct gendisk;
+struct hd_geometry;
extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int,
unsigned long);

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