disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/infiniband/sw/rdmavt/mmap.c
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@@ -48,7 +48,7 @@
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 #include <linux/slab.h>
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 #include <linux/vmalloc.h>
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 #include <linux/mm.h>
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-#include <asm/pgtable.h>
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+#include <rdma/uverbs_ioctl.h>
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 #include "mmap.h"
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 /**
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@@ -150,21 +150,22 @@
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  * rvt_create_mmap_info - allocate information for hfi1_mmap
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  * @rdi: rvt dev struct
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  * @size: size in bytes to map
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- * @context: user context
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+ * @udata: user data (must be valid!)
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  * @obj: opaque pointer to a cq, wq etc
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  *
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- * Return: rvt_mmap struct on success
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+ * Return: rvt_mmap struct on success, ERR_PTR on failure
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  */
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-struct rvt_mmap_info *rvt_create_mmap_info(struct rvt_dev_info *rdi,
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-					   u32 size,
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-					   struct ib_ucontext *context,
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-					   void *obj)
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+struct rvt_mmap_info *rvt_create_mmap_info(struct rvt_dev_info *rdi, u32 size,
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+					   struct ib_udata *udata, void *obj)
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 {
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 	struct rvt_mmap_info *ip;
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+	if (!udata)
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+		return ERR_PTR(-EINVAL);
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+
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 	ip = kmalloc_node(sizeof(*ip), GFP_KERNEL, rdi->dparms.node);
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 	if (!ip)
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-		return ip;
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+		return ERR_PTR(-ENOMEM);
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 	size = PAGE_ALIGN(size);
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@@ -177,7 +178,9 @@
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 	INIT_LIST_HEAD(&ip->pending_mmaps);
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 	ip->size = size;
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-	ip->context = context;
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+	ip->context =
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+		container_of(udata, struct uverbs_attr_bundle, driver_udata)
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+			->context;
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 	ip->obj = obj;
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 	kref_init(&ip->ref);
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