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| author |   Christoph Hellwig <hch@lst.de> | 2021-03-01 08:44:31 +0100 |
|---|---|---|
| committer |   Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2021-03-17 00:40:49 +0000 |
| commit | 5d0538b2b884f7fd239f6ab3b667148dc57123f1 (patch) | |
| tree | 060677a67b91ec06e41b57d387fe35a75d1e4628 /drivers/xen | |
| parent | xen-swiotlb: remove xen_io_tlb_start and xen_io_tlb_nslabs (diff) | |
| download | linux-dev-5d0538b2b884f7fd239f6ab3b667148dc57123f1.tar.xz linux-dev-5d0538b2b884f7fd239f6ab3b667148dc57123f1.zip | |
swiotlb: lift the double initialization protection from xen-swiotlb
Lift the double initialization protection from xen-swiotlb to the core
code to avoid exposing too many swiotlb internals. Also upgrade the
check to a warning as it should not happen.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 1a31ddf71397..060eeb056486 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -173,12 +173,6 @@ retry: order = get_order(bytes); /* - * IO TLB memory already allocated. Just use it. - */ - if (io_tlb_start != 0) - goto end; - - /* * Get IO TLB memory from any location. */ if (early) { @@ -232,7 +226,6 @@ retry: } else rc = swiotlb_late_init_with_tbl(start, nslabs); -end: if (!rc) swiotlb_set_max_segment(PAGE_SIZE); |