Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"A usual cycle for RDMA with a typical mix of driver and core subsystem
updates:
- Driver minor changes and bug fixes for mlx5, efa, rxe, vmw_pvrdma,
hns, usnic, qib, qedr, cxgb4, hns, bnxt_re
- Various rtrs fixes and updates
- Bug fix for mlx4 CM emulation for virtualization scenarios where
MRA wasn't working right
- Use tracepoints instead of pr_debug in the CM code
- Scrub the locking in ucma and cma to close more syzkaller bugs
- Use tasklet_setup in the subsystem
- Revert the idea that 'destroy' operations are not allowed to fail
at the driver level. This proved unworkable from a HW perspective.
- Revise how the umem API works so drivers make fewer mistakes using
it
- XRC support for qedr
- Convert uverbs objects RWQ and MW to new the allocation scheme
- Large queue entry sizes for hns
- Use hmm_range_fault() for mlx5 On Demand Paging
- uverbs APIs to inspect the GID table instead of sysfs
- Move some of the RDMA code for building large page SGLs into
lib/scatterlist"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (191 commits)
RDMA/ucma: Fix use after free in destroy id flow
RDMA/rxe: Handle skb_clone() failure in rxe_recv.c
RDMA/rxe: Move the definitions for rxe_av.network_type to uAPI
RDMA: Explicitly pass in the dma_device to ib_register_device
lib/scatterlist: Do not limit max_segment to PAGE_ALIGNED values
IB/mlx4: Convert rej_tmout radix-tree to XArray
RDMA/rxe: Fix bug rejecting all multicast packets
RDMA/rxe: Fix skb lifetime in rxe_rcv_mcast_pkt()
RDMA/rxe: Remove duplicate entries in struct rxe_mr
IB/hfi,rdmavt,qib,opa_vnic: Update MAINTAINERS
IB/rdmavt: Fix sizeof mismatch
MAINTAINERS: CISCO VIC LOW LATENCY NIC DRIVER
RDMA/bnxt_re: Fix sizeof mismatch for allocation of pbl_tbl.
RDMA/bnxt_re: Use rdma_umem_for_each_dma_block()
RDMA/umem: Move to allocate SG table from pages
lib/scatterlist: Add support in dynamic allocation of SG table from pages
tools/testing/scatterlist: Show errors in human readable form
tools/testing/scatterlist: Rejuvenate bit-rotten test
RDMA/ipoib: Set rtnl_link_ops for ipoib interfaces
RDMA/uverbs: Expose the new GID query API to user space
...
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index 11fe9ff7..d6808f6 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -806,30 +806,27 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {
struct sg_table *drm_prime_pages_to_sg(struct drm_device *dev,
struct page **pages, unsigned int nr_pages)
{
- struct sg_table *sg = NULL;
+ struct sg_table *sg;
+ struct scatterlist *sge;
size_t max_segment = 0;
- int ret;
sg = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
- if (!sg) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!sg)
+ return ERR_PTR(-ENOMEM);
if (dev)
max_segment = dma_max_mapping_size(dev->dev);
if (max_segment == 0 || max_segment > SCATTERLIST_MAX_SEGMENT)
max_segment = SCATTERLIST_MAX_SEGMENT;
- ret = __sg_alloc_table_from_pages(sg, pages, nr_pages, 0,
+ sge = __sg_alloc_table_from_pages(sg, pages, nr_pages, 0,
nr_pages << PAGE_SHIFT,
- max_segment, GFP_KERNEL);
- if (ret)
- goto out;
-
+ max_segment,
+ NULL, 0, GFP_KERNEL);
+ if (IS_ERR(sge)) {
+ kfree(sg);
+ sg = ERR_CAST(sge);
+ }
return sg;
-out:
- kfree(sg);
- return ERR_PTR(ret);
}
EXPORT_SYMBOL(drm_prime_pages_to_sg);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
index 12b3007..f2eaed6 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
@@ -403,6 +403,7 @@ __i915_gem_userptr_alloc_pages(struct drm_i915_gem_object *obj,
unsigned int max_segment = i915_sg_segment_size();
struct sg_table *st;
unsigned int sg_page_sizes;
+ struct scatterlist *sg;
int ret;
st = kmalloc(sizeof(*st), GFP_KERNEL);
@@ -410,13 +411,12 @@ __i915_gem_userptr_alloc_pages(struct drm_i915_gem_object *obj,
return ERR_PTR(-ENOMEM);
alloc_table:
- ret = __sg_alloc_table_from_pages(st, pvec, num_pages,
- 0, num_pages << PAGE_SHIFT,
- max_segment,
- GFP_KERNEL);
- if (ret) {
+ sg = __sg_alloc_table_from_pages(st, pvec, num_pages, 0,
+ num_pages << PAGE_SHIFT, max_segment,
+ NULL, 0, GFP_KERNEL);
+ if (IS_ERR(sg)) {
kfree(st);
- return ERR_PTR(ret);
+ return ERR_CAST(sg);
}
ret = i915_gem_gtt_prepare_pages(obj, st);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
index 7f03104..73116ec 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
@@ -432,6 +432,7 @@ static int vmw_ttm_map_dma(struct vmw_ttm_tt *vmw_tt)
int ret = 0;
static size_t sgl_size;
static size_t sgt_size;
+ struct scatterlist *sg;
if (vmw_tt->mapped)
return 0;
@@ -454,13 +455,15 @@ static int vmw_ttm_map_dma(struct vmw_ttm_tt *vmw_tt)
if (unlikely(ret != 0))
return ret;
- ret = __sg_alloc_table_from_pages
- (&vmw_tt->sgt, vsgt->pages, vsgt->num_pages, 0,
- (unsigned long) vsgt->num_pages << PAGE_SHIFT,
- dma_get_max_seg_size(dev_priv->dev->dev),
- GFP_KERNEL);
- if (unlikely(ret != 0))
+ sg = __sg_alloc_table_from_pages(&vmw_tt->sgt, vsgt->pages,
+ vsgt->num_pages, 0,
+ (unsigned long) vsgt->num_pages << PAGE_SHIFT,
+ dma_get_max_seg_size(dev_priv->dev->dev),
+ NULL, 0, GFP_KERNEL);
+ if (IS_ERR(sg)) {
+ ret = PTR_ERR(sg);
goto out_sg_alloc_fail;
+ }
if (vsgt->num_pages > vmw_tt->sgt.orig_nents) {
uint64_t over_alloc =
