[PATCH 2/7] IB/uverbs: initialize context field in ib_udata

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initialize the context field in ib_udata created from uverbs commands
and extended commands path.

Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@xxxxxxxxxx>
---
 drivers/infiniband/core/uverbs.h      | 17 ++++++++------
 drivers/infiniband/core/uverbs_cmd.c  | 34 +++++++++++++--------------
 drivers/infiniband/core/uverbs_main.c |  6 +++--
 3 files changed, 31 insertions(+), 26 deletions(-)

diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index c97935a0c7c6..7c6c2c975125 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -55,23 +55,26 @@ static inline void
 ib_uverbs_init_udata(struct ib_udata *udata,
 		     const void __user *ibuf,
 		     void __user *obuf,
-		     size_t ilen, size_t olen)
+		     size_t ilen, size_t olen,
+		     struct ib_ucontext *context)
 {
-	udata->inbuf  = ibuf;
-	udata->outbuf = obuf;
-	udata->inlen  = ilen;
-	udata->outlen = olen;
+	udata->inbuf   = ibuf;
+	udata->outbuf  = obuf;
+	udata->inlen   = ilen;
+	udata->outlen  = olen;
+	udata->context = context;
 }
 
 static inline void
 ib_uverbs_init_udata_buf_or_null(struct ib_udata *udata,
 				 const void __user *ibuf,
 				 void __user *obuf,
-				 size_t ilen, size_t olen)
+				 size_t ilen, size_t olen,
+				 struct ib_ucontext *context)
 {
 	ib_uverbs_init_udata(udata,
 			     ilen ? ibuf : NULL, olen ? obuf : NULL,
-			     ilen, olen);
+			     ilen, olen, context);
 }
 
 /*
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index ef83813aefc2..c464ed65cbbb 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -100,7 +100,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-		   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	ret = ib_rdmacg_try_charge(&cg_obj, ib_dev, RDMACG_RESOURCE_HCA_HANDLE);
 	if (ret)
@@ -358,7 +358,7 @@ ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
                    in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-                   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	uobj = uobj_alloc(UVERBS_OBJECT_PD, file, &ib_dev);
 	if (IS_ERR(uobj))
@@ -519,7 +519,7 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
                    in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-                   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	mutex_lock(&file->device->xrcd_tree_mutex);
 
@@ -676,7 +676,7 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
                    in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-                   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	if ((cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK))
 		return -EINVAL;
@@ -769,7 +769,7 @@ ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
                    in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-                   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	if (cmd.flags & ~IB_MR_REREG_SUPPORTED || !cmd.flags)
 		return -EINVAL;
@@ -883,7 +883,7 @@ ssize_t ib_uverbs_alloc_mw(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-		   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	mw = pd->device->alloc_mw(pd, cmd.mw_type, &udata);
 	if (IS_ERR(mw)) {
@@ -1095,12 +1095,12 @@ ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file,
 		return -EFAULT;
 
 	ib_uverbs_init_udata(&ucore, buf, u64_to_user_ptr(cmd.response),
-			     sizeof(cmd), sizeof(resp));
+			     sizeof(cmd), sizeof(resp), file->ucontext);
 
 	ib_uverbs_init_udata(&uhw, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-		   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	memset(&cmd_ex, 0, sizeof(cmd_ex));
 	cmd_ex.user_handle = cmd.user_handle;
@@ -1179,7 +1179,7 @@ ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-		   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file);
 	if (!cq)
@@ -1636,11 +1636,11 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
 		return -EFAULT;
 
 	ib_uverbs_init_udata(&ucore, buf, u64_to_user_ptr(cmd.response),
-		   sizeof(cmd), resp_size);
+		   sizeof(cmd), resp_size, file->ucontext);
 	ib_uverbs_init_udata(&uhw, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + resp_size,
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-		   out_len - resp_size);
+		   out_len - resp_size, file->ucontext);
 
 	memset(&cmd_ex, 0, sizeof(cmd_ex));
 	cmd_ex.user_handle = cmd.user_handle;
@@ -1737,7 +1737,7 @@ ssize_t ib_uverbs_open_qp(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-		   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, file,
 						 &ib_dev);
@@ -2089,7 +2089,7 @@ ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file,
 
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd.base), NULL,
 		   in_len - sizeof(cmd.base) - sizeof(struct ib_uverbs_cmd_hdr),
-		   out_len);
+		   out_len, file->ucontext);
 
 	ret = modify_qp(file, &cmd, &udata);
 	if (ret)
@@ -2573,7 +2573,7 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-		   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	uobj = uobj_alloc(UVERBS_OBJECT_AH, file, &ib_dev);
 	if (IS_ERR(uobj))
@@ -3808,7 +3808,7 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-		   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	ret = __uverbs_create_xsrq(file, &xcmd, &udata);
 	if (ret)
@@ -3834,7 +3834,7 @@ ssize_t ib_uverbs_create_xsrq(struct ib_uverbs_file *file,
 	ib_uverbs_init_udata(&udata, buf + sizeof(cmd),
 		   u64_to_user_ptr(cmd.response) + sizeof(resp),
 		   in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr),
-		   out_len - sizeof(resp));
+		   out_len - sizeof(resp), file->ucontext);
 
 	ret = __uverbs_create_xsrq(file, &cmd, &udata);
 	if (ret)
@@ -3857,7 +3857,7 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file,
 		return -EFAULT;
 
 	ib_uverbs_init_udata(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd,
-		   out_len);
+		   out_len, file->ucontext);
 
 	srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, file);
 	if (!srq)
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 12d8f8097574..50432f4eb36a 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -775,13 +775,15 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
 
 		ib_uverbs_init_udata_buf_or_null(&ucore, buf,
 					u64_to_user_ptr(ex_hdr.response),
-					hdr.in_words * 8, hdr.out_words * 8);
+					hdr.in_words * 8, hdr.out_words * 8,
+					file->ucontext);
 
 		ib_uverbs_init_udata_buf_or_null(&uhw,
 					buf + ucore.inlen,
 					u64_to_user_ptr(ex_hdr.response) + ucore.outlen,
 					ex_hdr.provider_in_words * 8,
-					ex_hdr.provider_out_words * 8);
+					ex_hdr.provider_out_words * 8,
+					file->ucontext);
 
 		ret = uverbs_ex_cmd_table[command](file, &ucore, &uhw);
 		ret = (ret) ? : count;
-- 
2.17.1




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