add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/rapidio/devices/rio_mport_cdev.c
..
..
@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
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2
 /*
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  * RapidIO mport character device
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  *
..
..
@@ -8,11 +9,6 @@
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9
  *    Jerry Jacobs <jerry.jacobs@prodrive-technologies.com>
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  * Copyright (C) 2014 Texas Instruments Incorporated
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11
  *    Aurelien Jacquiot <a-jacquiot@ti.com>
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- *
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- * This program is free software; you can redistribute  it and/or modify it
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- * under  the terms of  the GNU General  Public License as published by the
14
- * Free Software Foundation;  either version 2 of the  License, or (at your
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- * option) any later version.
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12
  */
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13
 #include <linux/module.h>
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14
 #include <linux/kernel.h>
..
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@@ -576,14 +572,12 @@
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 	struct mport_dma_req *req = container_of(ref, struct mport_dma_req,
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 			refcount);
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 	struct mport_cdev_priv *priv = req->priv;
579
-	unsigned int i;
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575
 
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 	dma_unmap_sg(req->dmach->device->dev,
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 		     req->sgt.sgl, req->sgt.nents, req->dir);
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 	sg_free_table(&req->sgt);
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 	if (req->page_list) {
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-		for (i = 0; i < req->nr_pages; i++)
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-			put_page(req->page_list[i]);
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+		unpin_user_pages(req->page_list, req->nr_pages);
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581
 		kfree(req->page_list);
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 	}
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583
 
..
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@@ -819,7 +813,7 @@
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 	struct mport_dma_req *req;
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 	struct mport_dev *md = priv->md;
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 	struct dma_chan *chan;
822
-	int i, ret;
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+	int ret;
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 	int nents;
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818
 
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819
 	if (xfer->length == 0)
..
..
@@ -866,13 +860,15 @@
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 			goto err_req;
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 		}
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-		pinned = get_user_pages_fast(
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+		pinned = pin_user_pages_fast(
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 				(unsigned long)xfer->loc_addr & PAGE_MASK,
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-				nr_pages, dir == DMA_FROM_DEVICE, page_list);
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+				nr_pages,
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+				dir == DMA_FROM_DEVICE ? FOLL_WRITE : 0,
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+				page_list);
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868
 
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 		if (pinned != nr_pages) {
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 			if (pinned < 0) {
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-				rmcd_error("get_user_pages_unlocked err=%ld",
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+				rmcd_error("pin_user_pages_fast err=%ld",
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 					   pinned);
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 				nr_pages = 0;
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874
 			} else {
..
..
@@ -954,8 +950,7 @@
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950
 
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 err_pg:
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 	if (!req->page_list) {
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-		for (i = 0; i < nr_pages; i++)
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-			put_page(page_list[i]);
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+		unpin_user_pages(page_list, nr_pages);
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 		kfree(page_list);
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 	}
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 err_req:
..
..
@@ -987,7 +982,7 @@
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982
 
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 	if (unlikely(copy_from_user(transfer,
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 				    (void __user *)(uintptr_t)transaction.block,
990
-				    transaction.count * sizeof(*transfer)))) {
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+				    array_size(sizeof(*transfer), transaction.count)))) {
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 		ret = -EFAULT;
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987
 		goto out_free;
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 	}
..
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@@ -1000,7 +995,7 @@
1000
995
 
1001
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 	if (unlikely(copy_to_user((void __user *)(uintptr_t)transaction.block,
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 				  transfer,
1003
-				  transaction.count * sizeof(*transfer))))
998
+				  array_size(sizeof(*transfer), transaction.count))))
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 		ret = -EFAULT;
1005
1000
 
1006
1001
 out_free:
..
..
@@ -1719,8 +1714,7 @@
1719
1714
 	if (rval & RIO_PEF_SWITCH) {
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 		rio_mport_read_config_32(mport, destid, hopcount,
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1716
 					 RIO_SWP_INFO_CAR, &swpinfo);
1722
-		size += (RIO_GET_TOTAL_PORTS(swpinfo) *
1723
-			 sizeof(rswitch->nextdev[0])) + sizeof(*rswitch);
1717
+		size += struct_size(rswitch, nextdev, RIO_GET_TOTAL_PORTS(swpinfo));
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1718
 	}
1725
1719
 
1726
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 	rdev = kzalloc(size, GFP_KERNEL);
..
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@@ -2160,6 +2154,7 @@
2160
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 	switch (map->dir) {
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2155
 	case MAP_INBOUND:
2162
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 		rio_unmap_inb_region(mport, map->phys_addr);
2157
+		fallthrough;
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 	case MAP_DMA:
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2159
 		dma_free_coherent(mport->dev.parent, map->size,
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 				  map->virt_addr, map->phys_addr);