[POC][PATCH 29/83] switch the remaining users of __get_dma_pages() to get_dma_pages()

[Al Viro <viro@ZenIV.linux.org.uk>]

From: Al Viro <viro@zeniv.linux.org.uk>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/char/mbcs.c                  | 24 ++++++++++++------------
 drivers/net/appletalk/ltpc.c         |  8 +++-----
 drivers/net/ethernet/amd/mvme147.c   |  8 ++++----
 drivers/net/ethernet/cirrus/cs89x0.c |  3 +--
 include/linux/gfp.h                  |  3 ---
 5 files changed, 20 insertions(+), 26 deletions(-)

diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c
index b9d9619..eddf892 100644
--- a/drivers/char/mbcs.c
+++ b/drivers/char/mbcs.c
@@ -404,22 +404,22 @@ static ssize_t mbcs_sram_read(struct file * fp, char __user *buf, size_t len, lo
 {
 	struct cx_dev *cx_dev = fp->private_data;
 	struct mbcs_soft *soft = cx_dev->soft;
-	uint64_t hostAddr;
+	void *hostAddr;
 	int rv = 0;
 
-	hostAddr = __get_dma_pages(GFP_KERNEL, get_order(len));
-	if (hostAddr == 0)
+	hostAddr = get_dma_pages(GFP_KERNEL, get_order(len));
+	if (!hostAddr)
 		return -ENOMEM;
 
-	rv = do_mbcs_sram_dmawrite(soft, hostAddr, len, off);
+	rv = do_mbcs_sram_dmawrite(soft, (unsigned long)hostAddr, len, off);
 	if (rv < 0)
 		goto exit;
 
-	if (copy_to_user(buf, (void *)hostAddr, len))
+	if (copy_to_user(buf, hostAddr, len))
 		rv = -EFAULT;
 
       exit:
-	free_pages((void *)hostAddr, get_order(len));
+	free_pages(hostAddr, get_order(len));
 
 	return rv;
 }
@@ -429,22 +429,22 @@ mbcs_sram_write(struct file * fp, const char __user *buf, size_t len, loff_t * o
 {
 	struct cx_dev *cx_dev = fp->private_data;
 	struct mbcs_soft *soft = cx_dev->soft;
-	uint64_t hostAddr;
+	void *hostAddr;
 	int rv = 0;
 
-	hostAddr = __get_dma_pages(GFP_KERNEL, get_order(len));
-	if (hostAddr == 0)
+	hostAddr = get_dma_pages(GFP_KERNEL, get_order(len));
+	if (!hostAddr)
 		return -ENOMEM;
 
-	if (copy_from_user((void *)hostAddr, buf, len)) {
+	if (copy_from_user(hostAddr, buf, len)) {
 		rv = -EFAULT;
 		goto exit;
 	}
 
-	rv = do_mbcs_sram_dmaread(soft, hostAddr, len, off);
+	rv = do_mbcs_sram_dmaread(soft, (unsigned long)hostAddr, len, off);
 
       exit:
-	free_pages((void *)hostAddr, get_order(len));
+	free_pages(hostAddr, get_order(len));
 
 	return rv;
 }
diff --git a/drivers/net/appletalk/ltpc.c b/drivers/net/appletalk/ltpc.c
index c98dea0..daaffd7 100644
--- a/drivers/net/appletalk/ltpc.c
+++ b/drivers/net/appletalk/ltpc.c
@@ -245,11 +245,9 @@ static int sendup_buffer (struct net_device *dev);
 
 /* Dma Memory related stuff, cribbed directly from 3c505.c */
 
-static unsigned long dma_mem_alloc(int size)
+static void *dma_mem_alloc(int size)
 {
-        int order = get_order(size);
-
-        return __get_dma_pages(GFP_KERNEL, order);
+        return get_dma_pages(GFP_KERNEL, get_order(size));
 }
 
 /* DMA data buffer, DMA command buffer */
@@ -1075,7 +1073,7 @@ struct net_device * __init ltpc_probe(void)
 	}
 
 	/* allocate a DMA buffer */
-	ltdmabuf = (unsigned char *) dma_mem_alloc(1000);
+	ltdmabuf = dma_mem_alloc(1000);
 	if (!ltdmabuf) {
 		printk(KERN_ERR "ltpc: mem alloc failed\n");
 		err = -ENOMEM;
diff --git a/drivers/net/ethernet/amd/mvme147.c b/drivers/net/ethernet/amd/mvme147.c
index abda91c..b3487fb 100644
--- a/drivers/net/ethernet/amd/mvme147.c
+++ b/drivers/net/ethernet/amd/mvme147.c
@@ -38,7 +38,7 @@
 /* Our private data structure */
 struct m147lance_private {
 	struct lance_private lance;
-	unsigned long ram;
+	void *ram;
 };
 
 /* function prototypes... This is easy because all the grot is in the
@@ -111,7 +111,7 @@ struct net_device * __init mvme147lance_probe(int unit)
 	       dev->dev_addr);
 
 	lp = netdev_priv(dev);
-	lp->ram = __get_dma_pages(GFP_ATOMIC, 3);	/* 32K */
+	lp->ram = get_dma_pages(GFP_ATOMIC, 3);	/* 32K */
 	if (!lp->ram) {
 		printk("%s: No memory for LANCE buffers\n", dev->name);
 		free_netdev(dev);
@@ -134,7 +134,7 @@ struct net_device * __init mvme147lance_probe(int unit)
 
 	err = register_netdev(dev);
 	if (err) {
-		free_pages((void *)lp->ram, 3);
+		free_pages(lp->ram, 3);
 		free_netdev(dev);
 		return ERR_PTR(err);
 	}
@@ -193,7 +193,7 @@ void __exit cleanup_module(void)
 {
 	struct m147lance_private *lp = netdev_priv(dev_mvme147_lance);
 	unregister_netdev(dev_mvme147_lance);
-	free_pages((void *)lp->ram, 3);
+	free_pages(lp->ram, 3);
 	free_netdev(dev_mvme147_lance);
 }
 
diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index 815c596..25e128f 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -883,8 +883,7 @@ net_open(struct net_device *dev)
 #if ALLOW_DMA
 	if (lp->use_dma && (lp->isa_config & ANY_ISA_DMA)) {
 		unsigned long flags;
-		lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL,
-								get_order(lp->dmasize * 1024));
+		lp->dma_buff = get_dma_pages(GFP_KERNEL, get_order(lp->dmasize * 1024));
 		if (!lp->dma_buff) {
 			pr_err("%s: cannot get %dK memory for DMA\n",
 			       dev->name, lp->dmasize);
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 07b714d..fc4529d 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -483,9 +483,6 @@ void * __meminit alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask);
 #define __get_free_page(gfp_mask) \
 		__get_free_pages((gfp_mask), 0)
 
-#define __get_dma_pages(gfp_mask, order) \
-		__get_free_pages((gfp_mask) | GFP_DMA, (order))
-
 #define get_dma_pages(gfp_mask, order) \
 		((void *)__get_free_pages((gfp_mask) | GFP_DMA, (order)))
 
-- 
2.1.4