md/raid5-ppl: Fix argument order in bio_alloc_bioset()

commit f34fdcd4a0e7a0b92340ad7e48e7bcff9393fab5 upstream.

bio_alloc_bioset() takes a block device, number of vectors, the
OP flags, the GFP mask and the bio set. However when the prototype
was changed, the callisite in ppl_do_flush() had the OP flags and
the GFP flags reversed. This introduced some sparse error:

  drivers/md/raid5-ppl.c:632:57: warning: incorrect type in argument 3
				    (different base types)
  drivers/md/raid5-ppl.c:632:57:    expected unsigned int opf
  drivers/md/raid5-ppl.c:632:57:    got restricted gfp_t [usertype]
  drivers/md/raid5-ppl.c:633:61: warning: incorrect type in argument 4
  				    (different base types)
  drivers/md/raid5-ppl.c:633:61:    expected restricted gfp_t [usertype]
				    gfp_mask
  drivers/md/raid5-ppl.c:633:61:    got unsigned long long

The sparse error introduction may not have been reported correctly by
0day due to other work that was cleaning up other sparse errors in this
area.

Fixes: 609be1066731 ("block: pass a block_device and opf to bio_alloc_bioset")
Cc: stable@vger.kernel.org # 5.18+
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index d3962d92df18a02b2531340901227a7d9a14ef04..18acbbed8f0c4c4c96df168a0dff93fb6f308d21 100644 (file)
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -629,9 +629,9 @@ static void ppl_do_flush(struct ppl_io_unit *io)
                if (bdev) {
                        struct bio *bio;
 
-                       bio = bio_alloc_bioset(bdev, 0, GFP_NOIO,
+                       bio = bio_alloc_bioset(bdev, 0,
                                               REQ_OP_WRITE | REQ_PREFLUSH,
-                                              &ppl_conf->flush_bs);
+                                              GFP_NOIO, &ppl_conf->flush_bs);
                        bio->bi_private = io;
                        bio->bi_end_io = ppl_flush_endio;