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Subjectlinux-next: build failure after merge of the block tree
Hi Jens,

[I merged the block tree *before* the aio-direct tree today ...]

After merging the block tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

In file included from include/linux/blkdev.h:18:0,
from drivers/block/ps3disk.c:22:
drivers/block/ps3disk.c: In function 'ps3disk_scatter_gather':
include/linux/bio.h:239:9: error: incompatible types when assigning to type 'struct bio_vec *' from type 'struct bio_vec'
((bvl = bio_iter_iovec((bio), (iter))), 1); \
^
include/linux/bio.h:243:2: note: in expansion of macro '__bio_for_each_segment'
__bio_for_each_segment(bvl, bio, iter, (bio)->bi_iter)
^
include/linux/blkdev.h:748:3: note: in expansion of macro 'bio_for_each_segment'
bio_for_each_segment(bvl, _iter.bio, _iter.iter)
^
drivers/block/ps3disk.c:102:2: note: in expansion of macro 'rq_for_each_segment'
rq_for_each_segment(bvec, req, iter) {
^
include/linux/bio.h:239:41: warning: left-hand operand of comma expression has no effect [-Wunused-value]
((bvl = bio_iter_iovec((bio), (iter))), 1); \
^
include/linux/bio.h:243:2: note: in expansion of macro '__bio_for_each_segment'
__bio_for_each_segment(bvl, bio, iter, (bio)->bi_iter)
^
include/linux/blkdev.h:748:3: note: in expansion of macro 'bio_for_each_segment'
bio_for_each_segment(bvl, _iter.bio, _iter.iter)
^
drivers/block/ps3disk.c:102:2: note: in expansion of macro 'rq_for_each_segment'
rq_for_each_segment(bvec, req, iter) {
^
include/linux/bio.h:240:45: error: request for member 'bv_len' in something not a structure or union
bio_advance_iter((bio), &(iter), (bvl).bv_len))
^
include/linux/bio.h:243:2: note: in expansion of macro '__bio_for_each_segment'
__bio_for_each_segment(bvl, bio, iter, (bio)->bi_iter)
^
include/linux/blkdev.h:748:3: note: in expansion of macro 'bio_for_each_segment'
bio_for_each_segment(bvl, _iter.bio, _iter.iter)
^
drivers/block/ps3disk.c:102:2: note: in expansion of macro 'rq_for_each_segment'
rq_for_each_segment(bvec, req, iter) {
^

I am not quite sure which commit caused this (maybe ed2d2f9a8265 ("block:
Abstract out bvec iterator")?). I have used the block tree from
next-20131031 again for today.

--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
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