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  1.   4afe74fcfdc2b10867fb8d46e3f7c1af040ce4f2
  2.   patches.suse
  3.   RDMA-Remove-the-udata-parameter-from-alloc_mr-callba.patch
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From: Gal Pressman <galpress@amazon.com>
Date: Mon, 6 Jul 2020 15:03:43 +0300
Subject: RDMA: Remove the udata parameter from alloc_mr callback
Patch-mainline: v5.9-rc1
Git-commit: 42a3b153966c9cd9a90f6a669d1ffed7fef2d325
References: jsc#SLE-15176

Allocating an MR flow can only be initiated by kernel users, and not from
userspace so a udata parameter is redundant.

Link: https://lore.kernel.org/r/20200706120343.10816-4-galpress@amazon.com
Signed-off-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/core/verbs.c                 |    2 +-
 drivers/infiniband/hw/bnxt_re/ib_verbs.c        |    2 +-
 drivers/infiniband/hw/bnxt_re/ib_verbs.h        |    2 +-
 drivers/infiniband/hw/cxgb3/iwch_provider.c     |    2 +-
 drivers/infiniband/hw/cxgb4/iw_cxgb4.h          |    2 +-
 drivers/infiniband/hw/cxgb4/mem.c               |    2 +-
 drivers/infiniband/hw/hns/hns_roce_device.h     |    2 +-
 drivers/infiniband/hw/hns/hns_roce_mr.c         |    2 +-
 drivers/infiniband/hw/i40iw/i40iw_verbs.c       |    3 +--
 drivers/infiniband/hw/mlx4/mlx4_ib.h            |    2 +-
 drivers/infiniband/hw/mlx4/mr.c                 |    2 +-
 drivers/infiniband/hw/mlx5/mlx5_ib.h            |    2 +-
 drivers/infiniband/hw/mlx5/mr.c                 |    2 +-
 drivers/infiniband/hw/ocrdma/ocrdma_verbs.c     |    2 +-
 drivers/infiniband/hw/ocrdma/ocrdma_verbs.h     |    2 +-
 drivers/infiniband/hw/qedr/verbs.c              |    2 +-
 drivers/infiniband/hw/qedr/verbs.h              |    2 +-
 drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c    |    2 +-
 drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h |    2 +-
 drivers/infiniband/sw/rdmavt/mr.c               |    2 +-
 drivers/infiniband/sw/rdmavt/mr.h               |    2 +-
 drivers/infiniband/sw/rxe/rxe_verbs.c           |    2 +-
 drivers/infiniband/sw/siw/siw_verbs.c           |    2 +-
 drivers/infiniband/sw/siw/siw_verbs.h           |    2 +-
 include/rdma/ib_verbs.h                         |    2 +-
 25 files changed, 25 insertions(+), 26 deletions(-)

--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -2131,7 +2131,7 @@ struct ib_mr *ib_alloc_mr(struct ib_pd *
 		goto out;
 	}
 
-	mr = pd->device->ops.alloc_mr(pd, mr_type, max_num_sg, NULL);
+	mr = pd->device->ops.alloc_mr(pd, mr_type, max_num_sg);
 	if (IS_ERR(mr))
 		goto out;
 
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -3569,7 +3569,7 @@ int bnxt_re_map_mr_sg(struct ib_mr *ib_m
 }
 
 struct ib_mr *bnxt_re_alloc_mr(struct ib_pd *ib_pd, enum ib_mr_type type,
-			       u32 max_num_sg, struct ib_udata *udata)
+			       u32 max_num_sg)
 {
 	struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd, ib_pd);
 	struct bnxt_re_dev *rdev = pd->rdev;
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.h
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
@@ -201,7 +201,7 @@ struct ib_mr *bnxt_re_get_dma_mr(struct
 int bnxt_re_map_mr_sg(struct ib_mr *ib_mr, struct scatterlist *sg, int sg_nents,
 		      unsigned int *sg_offset);
 struct ib_mr *bnxt_re_alloc_mr(struct ib_pd *ib_pd, enum ib_mr_type mr_type,
-			       u32 max_num_sg, struct ib_udata *udata);
+			       u32 max_num_sg);
 int bnxt_re_dereg_mr(struct ib_mr *mr, struct ib_udata *udata);
 struct ib_mw *bnxt_re_alloc_mw(struct ib_pd *ib_pd, enum ib_mw_type type,
 			       struct ib_udata *udata);
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -583,7 +583,7 @@ static int iwch_dealloc_mw(struct ib_mw
 }
 
 static struct ib_mr *iwch_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-				   u32 max_num_sg, struct ib_udata *udata)
+				   u32 max_num_sg)
 {
 	struct iwch_dev *rhp;
 	struct iwch_pd *php;
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -980,7 +980,7 @@ int c4iw_reject_cr(struct iw_cm_id *cm_i
 void c4iw_qp_add_ref(struct ib_qp *qp);
 void c4iw_qp_rem_ref(struct ib_qp *qp);
 struct ib_mr *c4iw_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			    u32 max_num_sg, struct ib_udata *udata);
+			    u32 max_num_sg);
 int c4iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
 		   unsigned int *sg_offset);
 int c4iw_dealloc_mw(struct ib_mw *mw);
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -691,7 +691,7 @@ int c4iw_dealloc_mw(struct ib_mw *mw)
 }
 
 struct ib_mr *c4iw_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			    u32 max_num_sg, struct ib_udata *udata)
+			    u32 max_num_sg)
 {
 	struct c4iw_dev *rhp;
 	struct c4iw_pd *php;
--- a/drivers/infiniband/hw/hns/hns_roce_device.h
+++ b/drivers/infiniband/hw/hns/hns_roce_device.h
@@ -1192,7 +1192,7 @@ int hns_roce_rereg_user_mr(struct ib_mr
 			   u64 virt_addr, int mr_access_flags, struct ib_pd *pd,
 			   struct ib_udata *udata);
 struct ib_mr *hns_roce_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-				u32 max_num_sg, struct ib_udata *udata);
+				u32 max_num_sg);
 int hns_roce_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
 		       unsigned int *sg_offset);
 int hns_roce_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c
@@ -415,7 +415,7 @@ int hns_roce_dereg_mr(struct ib_mr *ibmr
 }
 
 struct ib_mr *hns_roce_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-				u32 max_num_sg, struct ib_udata *udata)
+				u32 max_num_sg)
 {
 	struct hns_roce_dev *hr_dev = to_hr_dev(pd->device);
 	struct device *dev = hr_dev->dev;
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -1543,10 +1543,9 @@ static int i40iw_hw_alloc_stag(struct i4
  * @pd: ibpd pointer
  * @mr_type: memory for stag registrion
  * @max_num_sg: man number of pages
- * @udata: user data or NULL for kernel objects
  */
 static struct ib_mr *i40iw_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-				    u32 max_num_sg, struct ib_udata *udata)
+				    u32 max_num_sg)
 {
 	struct i40iw_pd *iwpd = to_iwpd(pd);
 	struct i40iw_device *iwdev = to_iwdev(pd->device);
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -729,7 +729,7 @@ struct ib_mw *mlx4_ib_alloc_mw(struct ib
 			       struct ib_udata *udata);
 int mlx4_ib_dealloc_mw(struct ib_mw *mw);
 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			       u32 max_num_sg, struct ib_udata *udata);
+			       u32 max_num_sg);
 int mlx4_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
 		      unsigned int *sg_offset);
 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
--- a/drivers/infiniband/hw/mlx4/mr.c
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -655,7 +655,7 @@ int mlx4_ib_dealloc_mw(struct ib_mw *ibm
 }
 
 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			       u32 max_num_sg, struct ib_udata *udata)
+			       u32 max_num_sg)
 {
 	struct mlx4_ib_dev *dev = to_mdev(pd->device);
 	struct mlx4_ib_mr *mr;
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -1210,7 +1210,7 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *
 			  struct ib_pd *pd, struct ib_udata *udata);
 int mlx5_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
 struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			       u32 max_num_sg, struct ib_udata *udata);
+			       u32 max_num_sg);
 struct ib_mr *mlx5_ib_alloc_mr_integrity(struct ib_pd *pd,
 					 u32 max_num_sg,
 					 u32 max_num_meta_sg);
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -1961,7 +1961,7 @@ err_free:
 }
 
 struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			       u32 max_num_sg, struct ib_udata *udata)
+			       u32 max_num_sg)
 {
 	return __mlx5_ib_alloc_mr(pd, mr_type, max_num_sg, 0);
 }
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -2901,7 +2901,7 @@ int ocrdma_arm_cq(struct ib_cq *ibcq, en
 }
 
 struct ib_mr *ocrdma_alloc_mr(struct ib_pd *ibpd, enum ib_mr_type mr_type,
-			      u32 max_num_sg, struct ib_udata *udata)
+			      u32 max_num_sg)
 {
 	int status;
 	struct ocrdma_mr *mr;
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
@@ -101,7 +101,7 @@ struct ib_mr *ocrdma_get_dma_mr(struct i
 struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *, u64 start, u64 length,
 				 u64 virt, int acc, struct ib_udata *);
 struct ib_mr *ocrdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			      u32 max_num_sg, struct ib_udata *udata);
+			      u32 max_num_sg);
 int ocrdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
 		     unsigned int *sg_offset);
 
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -3004,7 +3004,7 @@ err0:
 }
 
 struct ib_mr *qedr_alloc_mr(struct ib_pd *ibpd, enum ib_mr_type mr_type,
-			    u32 max_num_sg, struct ib_udata *udata)
+			    u32 max_num_sg)
 {
 	struct qedr_mr *mr;
 
--- a/drivers/infiniband/hw/qedr/verbs.h
+++ b/drivers/infiniband/hw/qedr/verbs.h
@@ -84,7 +84,7 @@ int qedr_map_mr_sg(struct ib_mr *ibmr, s
 		   int sg_nents, unsigned int *sg_offset);
 
 struct ib_mr *qedr_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			    u32 max_num_sg, struct ib_udata *udata);
+			    u32 max_num_sg);
 int qedr_poll_cq(struct ib_cq *, int num_entries, struct ib_wc *wc);
 int qedr_post_send(struct ib_qp *, const struct ib_send_wr *,
 		   const struct ib_send_wr **bad_wr);
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c
@@ -202,7 +202,7 @@ err_umem:
  * @return: ib_mr pointer on success, otherwise returns an errno.
  */
 struct ib_mr *pvrdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			      u32 max_num_sg, struct ib_udata *udata)
+			      u32 max_num_sg)
 {
 	struct pvrdma_dev *dev = to_vdev(pd->device);
 	struct pvrdma_user_mr *mr;
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
@@ -406,7 +406,7 @@ struct ib_mr *pvrdma_reg_user_mr(struct
 				 struct ib_udata *udata);
 int pvrdma_dereg_mr(struct ib_mr *mr, struct ib_udata *udata);
 struct ib_mr *pvrdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			      u32 max_num_sg, struct ib_udata *udata);
+			      u32 max_num_sg);
 int pvrdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
 		     int sg_nents, unsigned int *sg_offset);
 int pvrdma_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
--- a/drivers/infiniband/sw/rdmavt/mr.c
+++ b/drivers/infiniband/sw/rdmavt/mr.c
@@ -576,7 +576,7 @@ out:
  * Return: the memory region on success, otherwise return an errno.
  */
 struct ib_mr *rvt_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			   u32 max_num_sg, struct ib_udata *udata)
+			   u32 max_num_sg)
 {
 	struct rvt_mr *mr;
 
--- a/drivers/infiniband/sw/rdmavt/mr.h
+++ b/drivers/infiniband/sw/rdmavt/mr.h
@@ -71,7 +71,7 @@ struct ib_mr *rvt_reg_user_mr(struct ib_
 			      struct ib_udata *udata);
 int rvt_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata);
 struct ib_mr *rvt_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			   u32 max_num_sg, struct ib_udata *udata);
+			   u32 max_num_sg);
 int rvt_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
 		  int sg_nents, unsigned int *sg_offset);
 
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
@@ -975,7 +975,7 @@ static int rxe_dereg_mr(struct ib_mr *ib
 }
 
 static struct ib_mr *rxe_alloc_mr(struct ib_pd *ibpd, enum ib_mr_type mr_type,
-				  u32 max_num_sg, struct ib_udata *udata)
+				  u32 max_num_sg)
 {
 	struct rxe_dev *rxe = to_rdev(ibpd->device);
 	struct rxe_pd *pd = to_rpd(ibpd);
--- a/drivers/infiniband/sw/siw/siw_verbs.c
+++ b/drivers/infiniband/sw/siw/siw_verbs.c
@@ -1373,7 +1373,7 @@ err_out:
 }
 
 struct ib_mr *siw_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
-			   u32 max_sge, struct ib_udata *udata)
+			   u32 max_sge)
 {
 	struct siw_device *sdev = to_siw_dev(pd->device);
 	struct siw_mr *mr = NULL;
--- a/drivers/infiniband/sw/siw/siw_verbs.h
+++ b/drivers/infiniband/sw/siw/siw_verbs.h
@@ -69,7 +69,7 @@ int siw_req_notify_cq(struct ib_cq *base
 struct ib_mr *siw_reg_user_mr(struct ib_pd *base_pd, u64 start, u64 len,
 			      u64 rnic_va, int rights, struct ib_udata *udata);
 struct ib_mr *siw_alloc_mr(struct ib_pd *base_pd, enum ib_mr_type mr_type,
-			   u32 max_sge, struct ib_udata *udata);
+			   u32 max_sge);
 struct ib_mr *siw_get_dma_mr(struct ib_pd *base_pd, int rights);
 int siw_map_mr_sg(struct ib_mr *base_mr, struct scatterlist *sl, int num_sle,
 		  unsigned int *sg_off);
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -2476,7 +2476,7 @@ struct ib_device_ops {
 			     struct ib_pd *pd, struct ib_udata *udata);
 	int (*dereg_mr)(struct ib_mr *mr, struct ib_udata *udata);
 	struct ib_mr *(*alloc_mr)(struct ib_pd *pd, enum ib_mr_type mr_type,
-				  u32 max_num_sg, struct ib_udata *udata);
+				  u32 max_num_sg);
 	struct ib_mr *(*alloc_mr_integrity)(struct ib_pd *pd,
 					    u32 max_num_data_sg,
 					    u32 max_num_meta_sg);
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