1 files changed, 0 insertions, 130 deletions
diff --git a/drivers/char/ftape/lowlevel/ftape-buffer.c b/drivers/char/ftape/lowlevel/ftape-buffer.c
deleted file mode 100644
index c706ff1..0000000
--- a/drivers/char/ftape/lowlevel/ftape-buffer.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- *      Copyright (C) 1997 Claus-Justus Heine
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-buffer.c,v $
- * $Revision: 1.3 $
- * $Date: 1997/10/16 23:33:11 $
- *
- *  This file contains the allocator/dealloctor for ftape's dynamic dma
- *  buffer.
- */
-
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <asm/dma.h>
-
-#include <linux/ftape.h>
-#include "../lowlevel/ftape-rw.h"
-#include "../lowlevel/ftape-read.h"
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/ftape-buffer.h"
-
-/*  DMA'able memory allocation stuff.
- */
-
-static inline void *dmaalloc(size_t size)
-{
-	unsigned long addr;
-
-	if (size == 0) {
-		return NULL;
-	}
-	addr = __get_dma_pages(GFP_KERNEL, get_order(size));
-	if (addr) {
-		struct page *page;
-
-		for (page = virt_to_page(addr); page < virt_to_page(addr+size); page++)
-			SetPageReserved(page);
-	}
-	return (void *)addr;
-}
-
-static inline void dmafree(void *addr, size_t size)
-{
-	if (size > 0) {
-		struct page *page;
-
-		for (page = virt_to_page((unsigned long)addr);
-		     page < virt_to_page((unsigned long)addr+size); page++)
-			ClearPageReserved(page);
-		free_pages((unsigned long) addr, get_order(size));
-	}
-}
-
-static int add_one_buffer(void)
-{
-	TRACE_FUN(ft_t_flow);
-	
-	if (ft_nr_buffers >= FT_MAX_NR_BUFFERS) {
-		TRACE_EXIT -ENOMEM;
-	}
-	ft_buffer[ft_nr_buffers] = kmalloc(sizeof(buffer_struct), GFP_KERNEL);
-	if (ft_buffer[ft_nr_buffers] == NULL) {
-		TRACE_EXIT -ENOMEM;
-	}
-	memset(ft_buffer[ft_nr_buffers], 0, sizeof(buffer_struct));
-	ft_buffer[ft_nr_buffers]->address = dmaalloc(FT_BUFF_SIZE);
-	if (ft_buffer[ft_nr_buffers]->address == NULL) {
-		kfree(ft_buffer[ft_nr_buffers]);
-		ft_buffer[ft_nr_buffers] = NULL;
-		TRACE_EXIT -ENOMEM;
-	}
-	ft_nr_buffers ++;
-	TRACE(ft_t_info, "buffer nr #%d @ %p, dma area @ %p",
-	      ft_nr_buffers,
-	      ft_buffer[ft_nr_buffers-1],
-	      ft_buffer[ft_nr_buffers-1]->address);
-	TRACE_EXIT 0;
-}
-
-static void del_one_buffer(void)
-{
-	TRACE_FUN(ft_t_flow);
-	if (ft_nr_buffers > 0) {
-		TRACE(ft_t_info, "releasing buffer nr #%d @ %p, dma area @ %p",
-		      ft_nr_buffers,
-		      ft_buffer[ft_nr_buffers-1],
-		      ft_buffer[ft_nr_buffers-1]->address);
-		ft_nr_buffers --;
-		dmafree(ft_buffer[ft_nr_buffers]->address, FT_BUFF_SIZE);
-		kfree(ft_buffer[ft_nr_buffers]);
-		ft_buffer[ft_nr_buffers] = NULL;
-	}
-	TRACE_EXIT;
-}
-
-int ftape_set_nr_buffers(int cnt)
-{
-	int delta = cnt - ft_nr_buffers;
-	TRACE_FUN(ft_t_flow);
-
-	if (delta > 0) {
-		while (delta--) {
-			if (add_one_buffer() < 0) {
-				TRACE_EXIT -ENOMEM;
-			}
-		}
-	} else if (delta < 0) {
-		while (delta++) {
-			del_one_buffer();
-		}
-	}
-	ftape_zap_read_buffers();
-	TRACE_EXIT 0;
-}